HP P4000 9.0 HP StorageWorks P4000 SAN Solution User Guide
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- HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 1
guide provides information for configuring and using the HP StorageWorks SAN Solution. It includes hardware configuration and information about designing and implementing a P4000 SAN. The intended audience is system administrators responsible for implementing, maintaining, and managing a P4000 SAN - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 2
Hewlett-Packard Development Company, L.P. Confidential computer software. Valid license from HP required for possession, use or copying. Consistent with FAR 12.211 and 12.212, Commercial Computer Software, Computer Software Documentation, and Technical Data for Commercial Items are licensed to the - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 3
system configuration category definitions 39 Storage system tasks ...39 Working with the storage system 40 Logging in to and out of storage systems 40 Automatic login ...40 Logging out of a storage system 40 Changing the storage system hostname 40 P4000 SAN Solution user guide 3 - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 4
and managing RAID 54 RAID Levels ...54 Explaining RAID devices in the RAID setup report 55 RAID devices by RAID type 56 Virtual RAID devices ...56 Planning the RAID configuration 56 Data protection ...56 Using RAID for data redundancy 57 Using Network RAID in a cluster 57 Using disk RAID with - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 5
system 75 Manually powering on the disk in the CMC 75 RAID rebuilding ...76 Replacing a disk in a hot-swap storage system 76 Replace the disk ...76 Physically replace the disk drive in the storage system 76 RAID rebuilding ...77 4 Managing the network 79 Network best practices ...79 Changing - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 6
set IP address using DHCP 86 Configuring network interface bonds 87 Best practices ...88 IP address for NIC bonds 89 Summary of NIC status during failover 90 Example network cabling topologies with Active-Passive 90 How the SAN/iQ software 107 Updating the list of manager IP addresses 108 Requirements - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 7
...127 Displaying events in a separate window 127 Copying events to the clipboard 127 Exporting event data ...128 Setting up remote log destinations 128 Changing the event retention period 128 Event notification overview ...129 Setting up email notification ...129 P4000 SAN Solution user guide 7 - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 8
and assign a VIP 147 Create a volume and finish creating management group 148 Management group map view tab 148 Creating a management group and default managers 148 Managers overview ...149 Functions of managers ...149 Managers and quorum ...149 Regular managers and specialized managers 150 8 - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 9
summary 153 Best Practice summary overview 155 Disk level data protection 156 Disk protection using RAID 156 Large single-system SATA cluster 156 Cluster-level data protection 156 Volume-level data protection 156 Volume access ...156 Systems running managers 156 Network speed and - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 10
the Failover Manager from VMware ESX Server 168 Troubleshooting the Failover Manager on ESX Server 169 Virtual manager overview ...169 When to use a virtual manager 170 Disaster recovery using a virtual manager 170 Management group across two sites with shared data 170 Management group - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 11
practice for setting volume size 190 Planning data protection 190 Former terminology in release 8.1 and earlier 191 Data protection level 191 How data protection levels work 192 Provisioning snapshots ...196 Snapshots versus backups 196 The effect of snapshots on cluster space 197 Managing - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 12
scheduled snapshots 214 Guide for snapshots ...214 Planning snapshots ...214 Source volumes for tape backups 215 Data preservation before upgrading software 215 Automated backups ...215 Planning how many snapshots 215 Creating a snapshot ...215 Requirements for application-managed snapshots 216 - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 13
virtual or boot-from-SAN servers 234 Safely use production data for test, development, and data mining 235 Clone a volume ...235 Planning SmartClone volumes 235 Space requirements ...235 Naming convention for SmartClone volumes 236 Naming and multiple identical disks in a server 236 Server - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 14
HP P4000 DSM for MPIO settings 267 Disk management ...267 17 Monitoring performance 269 Prerequisites ...269 Introduction to using performance information 269 What can I learn about my SAN 270 Current SAN Clearing the sample data 284 Clearing the display ...285 Resetting defaults ...285 Pausing - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 15
302 Best practice ...304 About HP DSM for MPIO ...304 network connection 307 Deleting a NIC bond ...308 Setting the TCP speed, duplex, and frame size 308 Removing a storage system from a management group 309 Resetting the storage system to factory defaults 309 P4000 SAN Solution user guide - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 16
HP Insight Remote Support Software 311 New and changed information in this edition 312 Related information ...312 HP websites ...312 Typographic conventions ...312 Customer self repair ...313 HP product documentation survey 314 A Replacing disks reference 315 Replacing disks and rebuilding data - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 17
Figures 1 Parts of the CMC ...26 2 Default naming conventions for snapshots and SmartClone volumes 31 3 Using the default naming for all the elements 32 4 The SAN/iQ software storage hierarchy 35 5 Storage system configuration categories 39 6 Disk enclosure not found as shown in Details tab 44 - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 18
are reaching safe limits 154 56 Error when some item in the management group has reached its limit 155 57 Best Practice Summary for well-configured SAN 155 58 Notification of taking volumes offline 162 59 Manually setting management group to normal mode 163 60 Two-site failure scenarios that - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 19
...250 95 Highlighting all related clone points in navigation window 251 96 Viewing volumes that depend on a clone point 253 97 List of SmartClone volumes in cluster 254 98 Server assignments in the navigation window and the Volumes and Snapshots tab ........ 258 P4000 SAN Solution user guide 19 - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 20
is deleted 264 102 Example showing overview of cluster activity 270 103 Example showing volume's type of workload 270 104 Example showing fault isolation 271 105 Example showing IOPS of two volumes 271 106 Example showing throughput of two volumes 272 107 Example showing activity generated - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 21
support 37 6 Upgrade preferences 46 7 Status icons for upgrade progress 49 8 Boot device status 51 9 Status and color definitions 54 10 Descriptions of RAID levels 54 11 Information in the RAID setup report 56 12 Data availability and safety in RAID configurations 58 13 Disk management - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 22
is created 148 35 Managers and quorum 149 36 Guide to local bandwidth priority settings 159 37 Troubleshooting for ESX Server installation 169 38 Requirements for using a virtual manager 171 39 Volume provisioning methods 190 40 Setting a data protection level for a volume 191 41 Information - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 23
69 Identifying Ethernet interfaces on the storage system 307 70 Document conventions 312 71 Replacing the ghost storage system with the repaired storage system 320 P4000 SAN Solution user guide 23 - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 24
24 - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 25
started Welcome to the SAN/iQ software and the Centralized Management Console (CMC). Use the CMC to configure and manage the HP P4000 SAN Solution. This product guide provides instructions for configuring individual storage systems, as well as for creating volumes, snapshots, remote copies, and - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 26
displays the architecture of your network. The physical and logical elements of the P4000 SAN network include: • Management groups • Events • Servers • Administration • Sites • Failover Managers and Virtual Managers • Clusters • Storage Systems and their configuration categories • Volumes, including - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 27
in the tab window. • Help-Lets you access online help and other information about the CMC and the SAN/iQ software. Using the navigation window The navigation window displays the components of the P4000 SAN network architecture, based on the criteria you set in the Find item in the menu bar, or by - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 28
SANs, see the HP StorageWorks P4000 Multi-Site HA/DR Solution Pack User Manual installed in the Documentation subdirectory with the CMC program files. • Clusters-Clusters are groupings of storage systems within a management group. Clusters contain the data volumes and snapshots. • Volumes-Volumes - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 29
If you change the default size of the CMC application on your screen, the management groups, servers, sites, clusters, volumes and snapshots. For example, when you want to make changes such as moving a volume to a different cluster, or deleting shared snapshots to its default size and view. Select - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 30
with management groups, "Management group map view tab" on page 148 • Controlling server access to volumes, "Server cluster map view" on page 263 • Sites, HP StorageWorks P4000 Multi-Site HA/DR Solution Pack user guide • Clusters, "Clusters Map View" on page 178 • Volumes and Snapshots, "Volumes map - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 31
When you install the CMC for the first time, or upgrade from release 7.0.x, default names are enabled for snapshots, including schedules to snapshot a volume, and for SmartClone volumes. No default names are provided for management groups, clusters, and volumes. Figure 2 Default naming conventions - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 32
carries into all the snapshot elements, including SmartClone volumes, which are created from a snapshot. Table 3 Example of how default names work Element SmartClone Volumes Snapshots Remote Snapshots Schedules to Snapshot a Volume Schedules to Remote Snapshot a Volume Default name VOL_ _SS_ _RS_ - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 33
the storage system. • Install the HP StorageWorks P4000 CMC software on a management workstation or server that can connect to the storage systems on the network. • Install an iSCSI initiator, such as the latest version of the Microsoft iSCSI Initiator, on the application server(s). Finding the - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 34
Setup tab and verify the RAID settings or change the RAID level. 5. In the list of configuration categories, select the TCP/IP Network category and configure the network settings. Creating a volume using the wizard Next, you create the storage hierarchy using the Management Groups, Clusters, and - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 35
use for the cluster • A name for the volume • The size of the volume Enabling server access to volumes Use the Assign Volume and Snapshot wizard to prepare the volume for server access. You set up application servers in the management group, then assign volumes to the servers. See Chapter 16 on page - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 36
. The next time you open the CMC, it will not search the network for all storage systems. Troubleshooting-Storage systems not found If the network has a lot of traffic, or if a storage system is busy reading or writing data, it may not be found when a search is performed. Try the following steps to - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 37
the CMC setup required for remote support. Table 5 CMC setup for remote support Requirement SNMP enabled on each storage system SNMP trap recipient set to IP address of the system where the remote support client is installed Port 8959 (used for the CLI) open Management group login and password for - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 38
38 Getting started - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 39
Manage RAID and the individual disks in the storage system. • TCP/IP Network-For each storage system, configure and manage the network settings, including network interface cards (NICs), the routing table, and which interface carries SAN configuration" on page 41 P4000 SAN Solution user guide 39 - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 40
on the network, you configure software version earlier than release 7.0. If you do need to manually log in, the Log In window opens. 2. Type a user name and password. 3. Click Log In. Logging in to and out of storage systems You must log in to a management group to perform with a default hostname. Use - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 41
key entries for registered features. • To save the management group configuration, see "Backing up a management group configura- tion" on page 160. • To preserve a record of the management group license keys, see "Saving license key informa- tion" on page 296. P4000 SAN Solution user guide 41 - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 42
for the backup file or accept the default name (Storage System_Configuration_Backup). NOTE: The management group and cluster, use the configuration backup file to restore the configuration of the failed storage system to the replacement system. You may also need to manually configure RAID, network - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 43
components, that may include: • Disk enclosure • Server blades enclosure • System controller The P4800 and the NSM 4150 are examples of storage systems that are comprised of modular components. Power on the components in the following order: 1. Disk enclosure. P4000 SAN Solution user guide 43 - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 44
discovered by the CMC. If you cannot discover the storage system using the CMC after 6 minutes, contact Customer Support. 3. If you do not power on the disk enclosure first, the actually takes place. 4. Select Reboot to perform a software reboot without a power cycle. 44 Working with storage systems - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 45
reboot takes several minutes. 6. Search for the storage system to reconnect the CMC to the storage system once it has finished rebooting. See "Finding the storage the configuration of the management group and volumes, your volumes and snapshots can remain available. P4000 SAN Solution user guide 45 - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 46
used for file downloads (downloads are about 20% slower). Upgrade Selection Mode • Advanced-Lets you select which upgrade or patch to install. • Normal-(Default) Installs all upgrades and patches needed to upgrade to the latest version. Download Directory Use the default directory or click - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 47
HP DSM for MPIO, or the CLI, it also lists the most current versions of those programs. The system accesses an FTP site and determines which patch and upgrade files you need. If you do not have all of the files, the Start Download button is displayed. If you see a message about a problem connecting - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 48
or later of the CMC. • All storage systems are in a good state, with no critical events. • If you are using the HP DSM for MPIO or the CLI, upgrade them first. • If you are using VSS, be prepared to upgrade it during the SAN/iQ upgrade process. • For storage systems in a management group: • You are - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 49
volumes' and snapshots' availability depends on this storage system staying online. Details include the data protection level and what factors contribute to the availability status, such as the status of storage systems participating in any replication or a RAID restripe in progress. P4000 SAN - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 50
boot devices may be compact flash cards or hard drives. If a storage system has dedicated boot devices, default. If necessary, compact flash cards can be deactivated or activated using the buttons on this tab. However, you should only take action on these cards if instructed by HP Technical Support - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 51
See "Alarms and events overview" on page 121. Replacing a dedicated boot device If a boot hard drive fails, you will see an event that the boot device is faulty. Replace it with a new drive. The boot device drives support hot swapping and do not require activation. P4000 SAN Solution user guide 51 - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 52
52 Working with storage systems - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 53
or the RAID level • Device Status • Subdevices Status indicators On the RAID Setup tab and the Disk Setup tab, the text or icon color indicates status. Table 9 on page 54 lists the status and color indicators for three categories. • RAID Device Status • Disk Status P4000 SAN Solution user guide 53 - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 54
a good combination of data protection and performance. RAID 1 or drive mirroring creates fault tolerance by storing duplicate sets of data on a minimum of two hard drives. There must be an even number of drives for RAID 1. RAID 1 and RAID 1+0(10) are the most costly fault tolerance methods because - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 55
Offers the best combination of data protection and performance. RAID 1+0 or drive mirroring creates fault tolerance by storing duplicate sets of data on a minimum off our hard drives. There must be an even number of drives for RAID 1+0. RAID 1+0(10) and RAID 1 are the most costly fault tolerance - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 56
+ spare, RAID 50, or RAID 6 within each storage system to ensure data redundancy. • Always use Network RAID to mirror data volumes across storage systems in a cluster, regardless of RAID level, for added data protection and high availability. 56 Storage Configuration: Disk RAID and Disk Management - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 57
creates less of a performance impact to applications accessing data than copying data from another storage system in the cluster. RAID 6 provides similar space benefits to RAID 5, with the additional protection of being able to survive the loss of up to two drives. P4000 SAN Solution user guide 57 - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 58
those RAID levels with Network RAID configured volumes in a cluster. Table 12 Data availability and safety in RAID configurations Configuration Data safety and availability during disk failure Data availability if entire storage system fails or if network connection to storage system lost Stand - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 59
. In general, the best practice is to avoid mixing configurations of various numbers or capacities of drives, so that the SAN fully utilizes the available capacity of each cluster. Setting RAID rebuild rate Choose the rate at which the RAID configuration rebuilds if a disk is replaced. NOTE: The - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 60
storage system to ensure that it remains normal. If the RAID status changes, a CMC event is generated. For more information about events and event notification, see "Alarms and events overview" on page 121. Data reads and writes and RAID status A RAID status of Normal, Rebuild, or Degraded all allow - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 61
disk. • Off-Data cannot be stored on the storage system. The storage system is offline and flashes in the navigation window. • None-RAID is unconfigured. Managing disks Use the Disk Setup tab to monitor disk information and perform disk management tasks as listed in Table 13 on page 62. P4000 SAN - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 62
CAUTION: The IBM x3650 does not support hot-swapping disk drives. Hot-swapping drives is not supported for RAID 0 on any storage system. Table 13 Disk management tasks for storage systems Disk setup function Monitor disk information Power on or off a disk Model where available All IBM x3650 - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 63
at the front of the DL320s (NSM 2120). For the DL320s (NSM 2120), the columns Health and Safe to Remove help assess the health of a disk and tell you whether you can replace it without losing data. P4000 SAN Solution user guide 63 - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 64
of the IBM x3650, Figure 16 on page 65. For the IBM x3650, the columns Health and Safe to Remove help assess the health of a disk and tell you whether you can replace it without losing data. 64 Storage Configuration: Disk RAID and Disk Management - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 65
VSA For the VSA, the Disk Setup window shows 1 virtual disk. Figure 17 Viewing the disk status of a VSA . NOTE: To change the size of the data disk in a VSA, see the HP StorageWorks P4000 VSA User Manual for instructions about recreating the disk in the VI Client. P4000 SAN Solution user guide 65 - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 66
disk drives from left to right when you are looking at the front of the NSM 4150. For the NSM 4150, the columns Health and Safe to Remove help you assess the health of a disk and tell you whether or not you can replace it without losing data. 66 Storage Configuration: Disk RAID and Disk Management - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 67
at the front of the HP LeftHand P4500 and HP StorageWorks P4500 G2. For the HP LeftHand P4500 and HP StorageWorks P4500 G2, the columns Health and Safe to Remove help you assess the health of a disk and tell you whether or not you can replace it without losing data. P4000 SAN Solution user guide 67 - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 68
at the front of the HP LeftHand P4300 and HP StorageWorks P4300 G2. For the P4300 and the P4300 G2, the columns Health and Safe to Remove help you assess the health of a disk and tell you whether or not you can replace it without losing data. 68 Storage Configuration: Disk RAID and Disk Management - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 69
70) and correspond to the disk drives from left to right (1-8-15-22 on the top row, and 2-9-16-23-30 on the second row and so on) as shown in Figure 29 on page 70 when you are looking at the front of the HP LeftHand P4800 and HP StorageWorks P4800 G2. P4000 SAN Solution user guide 69 - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 70
29 Diagram of the drive bays in a HP LeftHand P4800 and HP StorageWorks P4800 G2 . Replacing a disk The correct procedure for replacing a disk in a storage system depends upon a number of factors, including the RAID configuration, the data protection level of volumes and snapshots, and the number of - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 71
for data conservation before replacing disk. Power off disk in CMC before physically replacing disk. See Replacing a disk in RAID 0. Additional information about preparing for disk replacement is included in the following sections below: • Preparing for a disk replacement • Best practice checklist - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 72
it may be degraded and a drive is inactive. Use the instructions in "Replacing disks appendix" on page 315 for these situations: • If RAID is off • If you are unsure which disk to replace The instructions in the appendix include contacting Customer Support for assistance in either identifying the - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 73
drive in the CMC before removing it. RAID 0 provides no fault tolerance by itself, so when you power off the drive, the data on the storage system is lost. Therefore, if you need to replace a disk in a RAID 0 configuration, HP recommends the following: • All volumes and snapshots have a Network RAID - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 74
6. Click OK on the confirmation message. Physically replace the disk drive in the storage system See the hardware documentation for the storage system. Manually powering on the disk in the CMC After inserting the new disk into the storage system, the disk must be powered on from the Storage category - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 75
. Physically replace the disk drive in the storage system See the hardware documentation for the storage system. Manually powering on the disk in the CMC After inserting the new disk into the storage system, power on the disk from the Storage category Disk Setup tab. Until the disk is powered on - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 76
NSM 2120] • Dell 2950 • NSM 2060 • NSM 4150 • HP LeftHand P4300 and P4500 • HP StorageWorks P4500 G2 and P4500 G2 • HP StorageWorks P4700 • HP StorageWorks P4800 Complete the checklist for replacing a disk in RAID 1, RAID 10, RAID 5, RAID 50, or RAID 6. Then follow the appropriate procedures for the - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 77
rebuilding on the replaced disk. There may be a delay of up to a couple of minutes before you can see that RAID is rebuilding on the RAID Setup or Disk Setup tabs. Figure 32 RAID rebuilding on the RAID Setup tab . Figure 33 Disk rebuilding on the Disk Setup tab . P4000 SAN Solution user guide 77 - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 78
78 Storage Configuration: Disk RAID and Disk Management - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 79
speed or duplex Network best practices • Isolate the SAN, including CMC traffic, on a separate network. If the SAN must run on a public network, use a VPN to secure data and CMC traffic. • Configure all the network characteristics on a storage system before creating a management group, or before - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 80
Some network changes cause the storage server to restart the SAN/iQ services, making the storage system unavailable for a short time. Check the Availability tab for each storage system to see if any volumes will become unavailable if the services restart on the storage system. Volumes and snapshots - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 81
bond0 is the Logical Failover Device. Lists the actual bond that is used for data transfer during normal operation. Changing 10/Full 10/Half Auto/Auto 1000/Full 100/Full 100/Half 10/Full 10/Half NOTE: The VSA does not support changing the speed and duplex settings. P4000 SAN Solution user guide - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 82
bonds. Best practices Change the frame size while the storage system is in the Available Systems pool and not in a management group. The frame size specifies the size of data packets that are transferred over the network. The default Ethernet standard frame size is 1500 bytes. The maximum allowed - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 83
NIC is enabled or connectivity is restored. To avoid potential connectivity and performance problems with other devices on your network, keep the frame size at the default setting. The frame size on the storage system should correspond to the frame size on Windows and Linux application servers. If - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 84
flow control on the NICs to prevent data transmission overruns that result in packets being dropped. With flow-control enabled, network packets that would otherwise be dropped will not have to be retransmitted. NOTE: The VSA does not support changing flow control settings. Requirements • These - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 85
address Because the SAN should be on a private network, you can ping target IP addresses from a storage system using the CMC. You can ping from any enabled interface listed on TCP/IP Network category. 3. Select the TCP/IP Tasks menu, and select Ping from the menu. P4000 SAN Solution user guide 85 - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 86
address manually Use the TCP/IP Network category to add or change the IP address for a network interface the fields for IP address, Subnet mask, and Default gateway. 6. Click OK. 7. Click OK on configuration. If the DHCP server goes offline, then IP addresses may be lost. NOTE: If you plan to - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 87
not protect against switch failure. • Adaptive Load Balancing (ALB). The logical interface balances data transmissions through both NICs to enhance the functionality of the server and the network. Adaptive Load Balancing automatically incorporates fault tolerance features as well. P4000 SAN Solution - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 88
Best practices • Adaptive Load Balancing is the recommended bonding method, as it combines the benefits of the increased transmission rates of 802.3ad with the network redundancy of Active-Passive. Adaptive Load Balancing does not require additional switch configurations. • Verify and, if necessary, - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 89
network interfaces Failover name bond0 eth0 or Motherboard:Port1 eth1 or Motherboard:Port2 Failover description enabled. • NICs should be connected to separate switches. Which physical interface is preferred When the Active-Passive bond is created, if both NICs are plugged in, the SAN/iQ software - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 90
: Active Data Transfer: Yes Preferred: No Status: Passive (Ready) Data Transfer: No Example network cabling topologies with Active-Passive Two simple network cabling topologies using Active-Passive in high availability environments are illustrated (Figure 35 on page 91). 90 Managing the network - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 91
1. Servers 2. HP StorageWorks P4000 3. Storage cluster 4. GigE trunk 5. Active path 6. Passive path Figure 35 Active-Passive in a two-switch topology with server failover . The two-switch scenario in Figure the secondary connection to become active and take over. P4000 SAN Solution user guide 91 - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 92
be enabled. • NICs must be configured to the same subnet. • NICs must be connected to a single switch that is LACP-capable and supports 802.3ad link ag- gregation. If the storage system is directly connected to a server, then the server must support 802.3ad link aggregation. 92 Managing the network - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 93
during failover Data Transfer Fails Over to Eth1 Preferred: No Status: Passive (Failed) Data Transfer: No Preferred: No Status: Active Data Transfer: Yes Eth0 Restored Preferred: No Status: Active Data Transfer: Yes Preferred: No Status: Active Data Transfer: Yes P4000 SAN Solution user guide - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 94
data transfer. Both interfaces have an active status. If the interface link to one NIC goes offline, the other interface continues operating. Using both NICs also increases network bandwidth. Requirements for Adaptive Load Balancing To configure Adaptive Load Balancing: • Both NICs must be enabled - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 95
Data Transfer: Yes Preferred: No Status: Active Data Transfer: Yes Example network cabling topologies with Adaptive Load Balancing A simple network configuration using Adaptive Load Balancing in a high availability environment is illustrated (Figure 38 on page 96). P4000 SAN Solution user guide - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 96
1. Servers 2. HP StorageWorks P4000 3. Storage cluster 4. GigE trunk Figure 38 Adaptive Load bonded interface or on either of the supporting interfaces. For detailed instructions about properly configuring these settings, see "Managing settings on network interfaces" on page 80. Bond guidelines - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 97
default. 7. Enter the Subnet mask. 8. (Optional) Enter the default gateway. 9. Click OK. NOTE: The storage system drops off the network while the bonding takes place. The changes may take 2 to 3 minutes, during which time you cannot find or access the storage system. P4000 SAN Solution user guide - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 98
the new bond interface. 1. Bonded logical network interface 2. Physical interfaces shown as slaves Figure 40 Viewing a new Active-Passive bond . The bond interface shows as "bond0" and has a static IP address. The two physical NICs now show as slaves in the Mode column. 98 Managing the network - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 99
the status of interfaces in an Active-Passive bond. Figure 43 on page 100 shows the status of interfaces in a Link Aggregation Dynamic Mode bond. P4000 SAN Solution user guide 99 - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 100
1. Preferred interface Figure 42 Viewing the status of an Active-Passive bond . 1. Neither interface is preferred Figure 43 Viewing the status of a link aggregation dynamic mode bond . 100 Managing the network - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 101
data on that storage system fails. However, as soon as the Ethernet connection is reestablished, the storage system and the CMC the storage system, and expand the tree. 2. Network window opens. Figure 44 Searching for the unbonded storage system on the network . P4000 SAN Solution user guide 101 - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 102
5. Verify that the SAN/iQ communication port is correct. Disabling a network interface You can disable the network interfaces on the storage system. • You can only disable top-level interfaces. This includes bonded interfaces and NICs that are not part of bonded interfaces. 102 Managing the network - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 103
the management group and a reminder to reconfigure the application servers that are affected by the update. Configuring a disabled interface If one interface is still connected to the storage system but another interface is disconnected, you can reconnect to the second interface using the CMC. See - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 104
maximum of three DNS servers will automatically be added to the management group. These DNS servers are listed as IP addresses in the management storage system to recognize host names, you must manually add a DNS server to the management group DNS tab. NOTE: If you initially set Managing the network - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 105
a DNS server Change the IP address for a DNS Server in the list. 1. In the navigation window, select a management group and log in. 2. Select the DNS tab. 3. Select the server to edit. 4. Click DNS Tasks, and . 7. Click OK to remove the DNS server from the list. P4000 SAN Solution user guide 105 - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 106
a management group default gateway on the TCP/IP tab. See "Configuring the IP address manually" on page 86. Information for each route listed includes the device, the network 10. Click OK. 11. Use the arrows on the routing table panel to order devices according to the configuration of your network - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 107
Open the tree, and select the TCP/IP Network category. 3. Select the Routing tab. 4. network and to update the list of managers that the storage system can communicate with. Selecting the interface used by the SAN/iQ software The SAN/iQ software uses one network for the SAN/iQ software communication. - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 108
to bring that window to the front. Figure 46 Selecting the SAN/iQ software network interface and updating the list of managers . 4. Select an IP address from the list of Manager IP Addresses. 5. Click Communication Tasks, and select Select SAN/iQ Address. 6. Select an Ethernet port for this address - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 109
system in the management group and a list of IPs with every manager's enabled network interfaces. A window opens which displays the manager IP addresses in the management group and a reminder to reconfigure the application servers that are affected by the update. P4000 SAN Solution user guide 109 - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 110
110 Managing the network - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 111
inherit those management group settings. • Using network time protocol Configure the storage system to use a time service, either external or internal to your network. • Setting the time zone Set the time zone for the storage system. The time zone controls the time stamp on volumes and snapshots. If - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 112
management group, it uses GMT. NOTE: When using a Windows server as an external time source for an storage system, you must configure W32Time (the Windows Time service such as a server that is on a local network. An NTP server on a local network would have a reliable and fast connection to the - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 113
date and time when you create the management group using the Management Groups, Clusters and Volumes wizard. If necessary, you can edit these settings later. 1. Select the management group. 2. Select the Time tab to you have the option of setting the time zone only. P4000 SAN Solution user guide 113 - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 114
if necessary. If you do not set the time zone for each management group, the management group uses GMT, whether or not you use NTP. Files display the 2. From the drop-down list, select the time zone in which this management group resides. 3. Click OK. Note the change in the Time column of the Time - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 115
user. Editing administrative users Each management group has an administration node in the tree below it. You can add, edit, and remove administrative users here. Editing administrative users includes changing passwords and group memberships of administrative users. P4000 SAN Solution user guide 115 - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 116
Tasks in the tab window, and select Edit User. 3. Change the User Description as necessary. 4. Click OK to finish. Changing a user's password 1. Log in to the management group, and select the Administration node. 2. Click Administration Tasks in the tab window, and select Edit User. 3. Type a new - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 117
system, such as read/write • Access to different management capabilities for the SAN, such as configuring network capabilities Adding administrative groups When you create a group, you also set the management permissions for the users assigned to that group. The default setting for a new group - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 118
User can choose type of network connection, set the time and time zone for the management group, identify the Domain Name Server, and use SNMP. Storage System Administration, Boot, Upgrade User can add administrators and upgrade the SAN/iQ software. System and Disk Report User can view reports - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 119
of access to the storage system, such as read/write • Access to different management capabilities for the storage system, such as creating volumes When you create a group, you also set the management capabilities available to members of a group. The default setting for a new group is Read Only for - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 120
120 Administrative users and groups - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 121
capabilities of the HP P4000 SAN Solution are divided into the following categories: • Alarms-Use the Alarms window to view and export critical and warning events for all management groups you are logged in to. Most alarms require you to take action. See "Alarms and events overview" on page 121 - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 122
event Figure 48 Events node and its parts . 5. Events list 6. Alarms window 7. Collapse/expand button NOTE: Alarms and events information is not available for storage systems listed under Available Systems in the CMC, because the systems are not currently in use. Table 30 defines the alarms and - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 123
the event is related to, such as, volume, storage system, disk, manager, and so forth. Name of the device or object the event is related to. Major category of the device or object the event is related to, typically, hardware, SAN/iQ, or system (software). Name of the cluster where the event occurred - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 124
paste the event details into a document or email message, click Copy management group. 2. In the Alarms window, click Alarm Tasks, and select Export Alarms. 3. In the Filename field, enter a path and file name. If you enter just a file name, the file is stored in the installation location of the CMC - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 125
types and columns, see "Alarms and events overview" on page 121. You can do the When new events occur after you log in to a management group, (New) appears next to the Events node based on your selection. To remove the filter, click Clear. To change the date range: P4000 SAN Solution user guide 125 - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 126
window, log in to the management group. 2. Select Events in the tree. 3. In the Events window, click the expand button (right side below the filters. Custom filters are available for use with any management group from this installation of the CMC. 1. Click Events Tasks, and select Save Current - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 127
event details into a document or email message, click management group. 2. Select Events in the tree. 3. Do one of the following: • Select one or more events, click Event Tasks, and select Copy Selected to Clipboard. • Click Event Tasks, and select Copy All to Clipboard. P4000 SAN Solution user guide - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 128
installation location of the CMC. To select a different location or .txt format, click Browse. 5. Click OK. Setting up remote log destinations Use remote log destinations to automatically write all events for the management Changing the event retention period By default, the system retains events for - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 129
5. Click OK. Event notification overview The system can send notification of events using email or SNMP notification for events for each management group. After you set up the email server, you can add email recipients to receive notification based on event severity. P4000 SAN Solution user guide 129 - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 130
using an SNMP client. You can also enable SNMP traps to receive system alerts. The Management Information Base (MIB) is read-only and supports SNMP versions 1 and 2c. See "Installing the LeftHand Networks MIB" on page 134 for a list of MIBs. After installing SAN/iQ version 9.0, the SNMP agent on the - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 131
SNMP clients After you enable the SNMP agent, you NOTE: Use the CMC ping feature to verify names. For HP remote support, add the CMS for HP Insight Remote Support. 5. Do management group must be configured with DNS for the client to be recognized by the host name. P4000 SAN Solution user guide 131 - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 132
window to finish. Editing access control entries After installing version 8.5 or later, by default, access control is open from any system using the to use SNMP applications to monitor your network of storage systems. Disabling SNMP 1. In the navigation window, log in to the management group. 2. In - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 133
HP remote support. 8. Click OK. 9. Repeat Step 5 through Step 8 for each trap recipient. 10. Click OK on the Edit SNMP Traps window when you are finished adding hosts. Editing trap recipients 1. Log in to the storage system and expand the tree. 2. In the navigation window, log in to the management - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 134
MIB The complete set of standard SNMP MIB files and the LeftHand Networks MIB files are installed when you install the CMC using the Complete option. The installer places the MIBs in the following directory by default: C:\Program Files\HP\P4000\UI\mibs. Your SNMP client may require that you copy the - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 135
-MIB LEFTHAND-NETWORKS-NSM-STORAGE-MIB The supported MIBs The following are the supported standard MIBs, though not every function in each MIB is supported. • DISMAN-EVENT-MIB • HOST-RESOURCES-MIB • IF-MIB • IP-FORWARD-MIB • IP-MIB • NET-SNMP-AGENT-MIB • NET-SNMP-EXTEND-MIB • NETWORK-SERVICES-MIB - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 136
troubleshoot hardware problems . Getting there 1. Select a storage system in the navigation window and log in. 2. Open the tree below the storage system and select Diagnostics. 3. Select from the list the diagnostic tests that you want to run. The default ," call Customer Support. To view - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 137
Cache Status Checks the status of the disk controller caches. Cache is normal Cache is corrupt Cache HP Diagnostic Report (for analysis contact Customer Support) Generates a drive health report. The report was successfully generated The report was not generated P4000 SAN Solution user guide - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 138
Description Generate IBM Support logs (for analysis contact IBM Support) Generates IBM Support logs when requested by Customer Support. Pass criteria about the performance of the storage system, its drives and configuration. Statistics in the hardware reports are point-in-time data, gathered when - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 139
Information Tasks and select Save to File to download a text file of the reported statistics. The software means this Hostname of the storage system. Full version number for storage system software. Also lists any patches that have been applied to the storage system. P4000 SAN Solution user guide - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 140
Support key NIC data DNS data Memory CPU Stat Backplane information Motherboard information Drive info Drive status RAID RAID O/S partitions Boot-device statistics Statistics 140 Monitoring and reporting means this IP address of the storage system. Support the CPU, and cache size. Information about - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 141
cache items Power supply Power supplies Sensors means this Identifies devices that make up the O/S RAID configuration, including: • Type of storage (BOOT, LOG, SANIQ, DATA) • RAID on page 142 Saving log files If Technical Support requests that you send a copy of a P4000 SAN Solution user guide 141 - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 142
latest data log files Use remote log files to automatically write log files to a computer other than the computer. The Log Type list only contains logs that support syslog. 6. In the Destination field, type the IP Refer to the syslog product documentation for information about configuring syslog. - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 143
, Chapter 8, page 145 • Network information, Chapter 4, page 79 • RAID information, Chapter 3, page 53 To export the summary: 1. Select Tasks > System Summary. 2. Click Export. 3. Select a location for the file. Use the default file name or enter a new file name. P4000 SAN Solution user guide 143 - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 144
navigation window and log in. 2. Do one of the following depending on what you selected: Click Management Group Tasks and select Export Management Group Support Bundle. Click Storage System Tasks and select Export Storage System Support Bundle. 3. Select where you want to save the zip file with the - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 145
SAN. Typically, storage administrators will configure at least one management group within their data center. • Organize storage systems into different groups for categories of applications and data. For example, you might create a management group for Oracle applications and a separate management - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 146
iSNS for iSCSI" on page 178. [Optional] Plan volume size If you create a volume in the wizard, you need the volume size and data pro- and data protection tection level. See "Guide for volumes" on page 206. Creating a management group Creating a management group is the first step in the process - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 147
password. The first administrator is always at full administrator level. 3. Click Next to set the time for the management group. Set management "Creating Multi-Site Clusters and Volumes" in Chapter 2 of the HP StorageWorks P4000 Multi-Site HA/DR Solution Pack User Guide. 1. Select Standard Cluster, - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 148
the VIP and subnet mask. 6. Click Next to create a volume and finish creating the management group. Create a volume and finish creating management group 1. Enter a name, data protection level, size, and provisioning type for the volume. 2. Click Finish. After a few minutes, a summary window opens - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 149
is not recommended. Even number of managers not recommended, except in specific configurations. Contact Customer Support for more information. If one manager fails, 2 remain, so there is still a quorum. (Note: 2 managers are not fault tolerant. See above.) P4000 SAN Solution user guide 149 - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 150
in the SAN. Configuring a Failover Manager in the management group enables the SAN to have automated failover without requiring a regular manager running on a storage system. A Failover Manager runs as a virtual machine on a VMware Server or on ESX and must be installed on network hardware other - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 151
Summary roll-up The summary roll-up provided on the Configuration Summary panel is organized by management group. Within each management group is listed the total number of volumes and snapshots, storage systems, and iSCSI sessions contained in the management group. P4000 SAN Solution user guide 151 - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 152
category, based on performance and the maximum recommended Best practices The optimal and recommended number of storage items in a management group depend largely on the network environment, the configuration of the SAN, the applications accessing the volumes, and what you are using snapshots - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 153
is relative to the recommended maximums in each category. For example, 3 storage systems in cluster c3 are closer to the cluster recommended maximum for storage systems than the 43 iSCSI sessions are to the maximum recommended iSCSI sessions for a management group. P4000 SAN Solution user guide 153 - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 154
55 on page 154. 1. Volumes and snapshots are nearing the optimum limit. One cluster is nearing the optimum limit for storage systems. Figure 55 Warning when items in the management group are reaching safe limits . Configuration errors When any item exceeds a recommended maximum, it turns red, and - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 155
1. Volumes and snapshots have exceeded recommended maximums. One cluster remains near optimum limit. Figure 56 Error when some item in the management group has reached its limit . Best Practice summary overview The Best Practice summary provides an easy-to-use reference about best practices that can - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 156
. Volume-level data protection Use a data protection level greater than Network RAID-0 to ensure optimum data availability if a storage system fails. For information about data protection, see "Planning data protection" on page 190. Volume access Use iSCSI load balancing to ensure better performance - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 157
Enter the user name and password, and click Log In. When you log in to one storage system in a management group, you are logged management group Logging out of a management group prevents unauthorized access to that management group and the storage systems in that group. P4000 SAN Solution user guide - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 158
group is the only way to stop the last manager. Implications of stopping managers • Quorum of the storage systems may be decreased. • Fewer copies of configuration data are maintained. • Fault tolerance of the configuration data may be lost. • Data integrity and availability may be compromised. 158 - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 159
changing the local bandwidth priority After a management group has been created, edit the management group to change the local bandwidth priority. This is the maximum rate per second that a manager devotes to non-application processing, such as moving data. The default rate is 4 MB per second. You - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 160
select Edit Management Group. 3. Change the local bandwidth priority using the slider. A default setting of 4, at the Application Access end of the slider, is more appropriate for everyday situations where many servers are busy with the volume. A setting of 40, at the Data Rebuild end of the slider - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 161
line documentation, the HP StorageWorks P4000 SAN/iQ Command Line Interface User Guide, installed in the documentation directory of the program files. Prerequisites • Disconnect any hosts or servers that are accessing volumes in the management group. • Wait for any restriping of volumes or snapshots - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 162
on and rediscovered in the CMC. • For some reason, a storage system comes up, but it is not fully functional. Manually change management group to normal mode While the management group is in maintenance mode, volumes and snapshots are unavailable. You may get volumes and snapshots back online if you - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 163
have to change the data protection level of the volume(s) before removing the storage system from the cluster. • Remove the storage system from the cluster. See "Removing a storage system from a cluster" on page 180. • Let any restripe operations finish completely. P4000 SAN Solution user guide 163 - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 164
completely reconfiguring your SAN and you intend to delete all data on the SAN. CAUTION: When a management group is deleted, all data stored on storage systems in that management group is lost. Prerequisites • Log in to the management group. • Remove all volumes and snapshots. • Delete all clusters - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 165
Failover Manager overview The Failover Manager is a specialized version of the SAN/iQ software designed to run as a virtual appliance in a VMware environment. The Failover Manager participates in the management group as a real manager in the system; however, it does quorum operations only, not data - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 166
, create a new virtual machine network for the Failover Manager. Upgrading the 7.0 Failover Manager The Failover Manager released with SAN/iQ software version 7.0 cannot be upgraded or patched. To upgrade to the Failover Manager released with SAN/iQ software version 8.0, you must uninstall the - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 167
on using the Power On command on the Information panel. 2. Click the Console tab, and wait for the Failover Manager to boot. 3. When the Failover Manager has finished booting, a login prompt opens. 4. Log in, and use the SAN/iQ Configuration Interface to configure an IP address and host name for the - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 168
are still running correctly. The "out of date" status is not a problem. VMware Tools are updated with each SAN/iQ software upgrade. 3. In the Inventory panel, right-click the Failover Manager, and select Rename. 4. Change the name of the Failover Manager to match the host name, if desired. Your - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 169
for ESX Server installation Issue Solution 1. Close your CMC session. 2. In the VI Client, power off the Failover Manager. 3. Right-click, and select Delete from Disk. You want to reinstall the Failover Manager 4. Copy fresh files into the virtual machine folder from the downloaded zip file or - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 170
virtual manager to a management group enables you to start the virtual manager when you need to take a storage system offline for maintenance. Benefits of a virtual manager Running a virtual manager supports disaster-tolerant configurations to support full-site failover. The virtual manager ensures - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 171
commu- resynchronized, or until communication is restored and data is resynchron- nication is restored. ized. Correct uses of a virtual manager are shown in Figure 60 on page 171. Figure 60 Two-site failure scenarios that are correctly using a virtual manager . P4000 SAN Solution user guide 171 - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 172
the virtual manager. Best practice The following example describes configuring a management group with four storage systems in one cluster. The cluster spans two geographic sites with two storage systems at each site. The cluster contains a single volume with Network RAID-10 that spans both - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 173
of the data to be written to the volume. Because you added the storage systems to the cluster in alternating order, a complete copy of the data exists on each site. See "Planning data protection" on page 190. Figure 62 Network RAID-10 volume on two-site cluster . P4000 SAN Solution user guide 173 - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 174
resynchronized. When the data is resynchronized, stop the virtual manager to return to the disaster-tolerant configuration. NOTE: If the unavailable site is not recoverable, you can create a new site with new storage systems and reconstruct the cluster. Contact Customer Support for help with cluster - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 175
that the storage system is unavailable, start the virtual manager on a different storage system. This situation can occur when quorum is lost, because the CMC may still display the storage system in a normal state, even though the storage system is unavailable. P4000 SAN Solution user guide 175 - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 176
, and log in. 2. Click Management Group Tasks on the Details tab, and select Delete Virtual Manager. A confirmation window opens. 3. Click OK to continue. The virtual manager is removed. NOTE: The CMC will not allow you to delete a manager or virtual manager if that deletion causes a loss of quorum - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 177
overview" on page 151 or Chapter 8 on page 145. To create additional clusters 1. Log in to the management group for which you want to create a cluster. 2. Right-click the storage system, and select Add to Existing or New Cluster. 3. Select New Cluster, and click Add. P4000 SAN Solution user guide - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 178
required for iSCSI load balancing and fault tolerance and for using HP DSM for MPIO. For more information, see Chapter 19 on page 299. Using Virtual IP addresses Virtual IP (VIP) addresses are required for all clusters in SAN/iQ software versions 8.0 and higher. 1. Click the iSCSI tab to bring it to - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 179
• Servers to Systems Tracking cluster usage The Use Summary, Volume Use, and System Use tabs provide detailed information about provisioning of volumes and snapshots and space usage in the cluster. See "Ongoing capacity management" on page 198 for information about the information reported on - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 180
data protection level. See "Guide for volumes" on page 206 for details about editing volumes. 1. In the Edit Cluster window, select a storage system from the list. 2. Click Remove Systems. In the navigation window, that storage system moves out of the cluster, but remains in the management group - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 181
Command-Line Interface, CLIQ. The command syntax is in the HP StorageWorks P4000 SAN/iQ Command-Line Interface User Guide, which is installed with the CLI. Preparing servers • Quiesce any applications that are accessing volumes in the cluster. • Log off the active sessions in the iSCSI initiator - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 182
initiator with the changes. 3. Reconnect to the volumes. 4. Restart the applications that use the volumes. Troubleshooting a cluster Auto Performance Protection monitors individual storage system health related to performance issues that affect the volumes in the cluster. Repairing a storage system - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 183
problem. Volumes that depend on this storage system are unavailable. For information about how to determine volume availability, see the section "Determining volume and snapshot availability" on page 49. Rebooting the storage system may return the status to Normal. Auto Performance Protection - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 184
be an indication that the underlying hardware problem still exists. Repairing a storage system Repairing a storage system allows you to replace a failed disk in a storage system that contains volumes configured for data protection levels other than Network RAID-0, and trigger only one resync of the - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 185
with the IP address instead of the host name, and a special icon . 5. Replace the disk in the storage system and perform any other physical repairs. Depending on the model, you may need to power on the disk and reconfigure RAID. See "Replacing a disk" on page 70. P4000 SAN Solution user guide 185 - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 186
ensure that the cluster resyncs, rather than restripes. See Glossary on page 325 for definitions of restripe and resync. 7. [Optional] Start a the manager on the repaired storage system. To return the repaired storage system to the cluster 1. Right-click the cluster, and select Edit Cluster window - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 187
2. Select the ghost storage system (the IP address in the list), and click Exchange System. Figure 67 Replacing the repaired storage system . P4000 SAN Solution user guide 187 - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 188
be deleted or moved to a different cluster before you can delete the cluster. For more information, see "Deleting a volume" on page 211 and "Deleting a snapshot" on page 230. Prerequisite You must log in to the management group before you can delete any clusters within that group. 1. Log in to the - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 189
SAN is a combination of factors. • The first factor is the clustered capacity of the storage systems which is determined by the disk capacity and the RAID level. See "Planning the RAID configuration" on page 56. • The second factor is the effect of the data protection of the volumes and snapshots - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 190
disk using Windows Logical Disk Manager and Diskpart. For detailed instructions, see "Changing the volume size on the server" on page 203. Planning data protection Data protection results from creating data redundancy for volumes on the SAN. Configure data protection levels, called Network RAID - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 191
levels. Volume Replication Level None 2-Way replication 3-Way replication 4-Way replication - - Data Protection Level Network RAID-0 (None) Network RAID-10 (2-Way Mirror) Network RAID-10+1 (3-Way Mirror) Network RAID-10+2 (4-Way Mirror) Network RAID-5 (Single Parity) (new) Network RAID-6 (Dual - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 192
managers. See "Managers overview" on page 149. CAUTION: Any volume with Network RAID-0 is not protected from complete system failure or reboot. Network RAID-10 (2-Way Mirror) Network RAID-10 data is striped and mirrored across two storage systems. Network RAID-10 is the default data protection - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 193
data in the event of an entire site becoming unavailable. Best use for Network RAID-10+2 volumes is for data that must be synchronously replicated between two locations and that must remain fully redundant in the case of an entire site failure. Using Network P4000 SAN Solution user guide 193 - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 194
when the volume is converted. This basic snapshot schedule can be edited to fit the needs of the volume. Best applications for using Network RAID-5 volumes include applications with mostly read, sequential workloads, such as file shares and archiving. Figure 72 illustrates the write patterns on - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 195
of the volume. Best applications for using Network RAID-6 volumes include applications with mostly read, sequential workloads on larger clusters, such as file shares and archiving. Figure 73 illustrates the write patterns on a cluster with six storage systems configured for Network RAID-6. P4000 SAN - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 196
is parity for data blocks M, N, O, P Figure 73 Write patterns and parity in Network RAID-6 (Dual Parity) . Provisioning snapshots Snapshots provide a copy of a volume for use with backup and other applications. You create snapshots from a volume on the cluster. Snapshots are always thin provisioned - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 197
in data on the volume, so calculating the rate of changed data in the client applications is important for planning schedules to snapshot a volume. NOTE: Volume size, provisioning, and using snapshots should be planned together. If you intend to use snapshots, review Chapter 13 on page 213. Managing - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 198
and storage system capacity. Number of volumes and snapshots For information about the recommended maximum number of volumes and snapshots that can be created in a management group, see "Configuration Summary overview" on page 151 . Reviewing SAN capacity and usage You can review detailed - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 199
space is calculated by the system. Space saved by using SmartClone volumes is calculated using the amount of data in the clone point and any snapshots below the clone point. Only as data is added to an individual SmartClone volume does it consume space on the SAN. P4000 SAN Solution user guide 199 - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 200
options for the different types of volumes you can create on the SAN, as shown in Figure 76 on page 201. The space calculations take into account both the type of volume and the data protection level. Use this information to help you manage space use on the SAN. • Thin provisioning saves space on - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 201
saved or reclaimable in the Volume Use tab . System Use disk capacity on the storage system. Note: Storage systems with greater capacity will only operate to the capacity of the lowest capacity storage system in the cluster. RAID level configured on the storage system. P4000 SAN Solution user guide - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 202
blocks which the file system can use for storing data. As the iSCSI initiator passes writes from the file system, the SAN/iQ software simply writes those blocks into the volume on the SAN. When you look at the CMC, the used space displayed is based on how many physical blocks have been written for - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 203
Windows After you have increased the volume size on the SAN, you must next expand the Windows partition to use the full space available on the disk. Windows Logical Disk Manager, the default disk management program that is included in any Windows installation, uses a tool called Diskpart.exe to - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 204
or moving them to a different cluster NOTE: Deleting files on a file system does not free up space on the SAN volume. For more information, see "Block systems and file systems" on page 202. For file-level capacity management, use application or file system-level tools. 204 Provisioning storage - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 205
system you plan to mount. Then grow each file system independently. Planning how many volumes For information about the recommended maximum number of volumes and snapshots that can be created in a management group, see "Configuration Summary overview" on page 151. P4000 SAN Solution user guide 205 - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 206
on page 213. Remote volumes contain no data, since they serve as pointers to tell the system where to make a copy of a primary snapshot. Therefore, remote volumes do not have a size. Servers Both Advanced Tab [Optional] Servers are set up in the management group to connect application hosts to - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 207
best practice configuration for Network RAID-5 and Network RAID-6 volumes. NOTE: The SAN/iQ software allocates space as needed. However, thin provisioning carries the risk that, if all warnings are ignored, an application server will fail a write because the SAN has run out of disk space. P4000 SAN - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 208
a size for the volume. 4. [Optional] Assign a server to the volume. 5. Click OK. The SAN/iQ software creates the volume. The volume is selected in the navigation window and the Volume tab view displays the Details tab. NOTE: The system automatically factors data protection levels into the settings - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 209
and click OK when you are finished. Configuring a volume for either Network RAID-5 or Network RAID-6 automatically creates a snapshot schedule. This default schedule is named VolumeName_Schedule, recurs once daily, and retains 1 copy. The first snapshot is created one day after the schedule is - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 210
change causes the volume and all its data to move to the target cluster. Requirement Either before or after changing the cluster, you must stop any applications that are accessing the volume and log off all associated iSCSI sessions. Even if using the HP DSM for MPIO, log off the volumes from the - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 211
Changing the data protection level 1. In the Data Protection Level drop-down list, select the level of Network RAID you want. Changing a volume to either Network RAID-5 or Network RAID-6 requires that volume to have a snapshot schedule. If the volume does not already have a snapshot schedule related - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 212
window, select Volumes and Snapshots. 2. Select the volumes and snapshots you want to delete. Figure 78 Deleting multiple volumes in one operation . 3. Right-click and select Delete Volumes. A warning message opens, asking you to verify that you want to delete the volumes and all the data on them - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 213
the HP P4000 VSS Provider (VSS Provider). For more information, see "Requirements for application-managed snapshots" on page 216. • Point-in-time -Snapshot that is taken at a specific point in time, but an application writing to that volume may not be quiesced. Thus, data may be in flight or cached - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 214
For more information, see "Requirements for application-managed snapshots" on page 216. If the VSS Provider is not installed, SAN/iQ will let you create a point-in-time snapshot (not using VSS). Snapshot Name The name of the snapshot that is displayed in the CMC. A snapshot name must be from 1 to - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 215
in the snapshot. Source volumes for tape backups Best practice Plan to use a single snapshot and delete it when you are finished. Consider the following question in your planning. Is space available on the cluster to create the snapshot? Data preservation before upgrading software Best practice Plan - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 216
quiesce VSS-aware applications before creating the snapshot. The following are required for application-managed snapshots: • SAN/iQ version 8.5 or later • CMC or CLI latest update • HP StorageWorks P4000 Windows Solution Pack, specifically the HP P4000 VSS Provider (latest update) installed on the - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 217
When you create an application-managed snapshot of a volume in a volume set, the CMC recognizes that the volume is part of a volume set. SAN/iQ then prompts you to create a snapshot for each volume in the volume set. This creates a snapshot set that corresponds to the volume set. To see any - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 218
on which you want to mount the snapshot to the management group. 2. Assign the snapshot to the server, and configure the snapshot for read/write access. 3. Configure server access to the snapshot 4. If you mount an application-managed snapshot as a volume, use diskpart.exe to change the resulting - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 219
Disk Manager. You may need to assign a drive letter, but the disk should be online and available for use. 16. If the server is running Windows 2008 or later and you promoted a remote application-managed snapshot to a primary volume, start the HP StorageWorks P4000 SAN/iQ CLI and clear the VSS volume - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 220
Support before performing this procedure. 1. Disconnect the iSCSI sessions. 2. Do one of the following (based on what you need to do with the application-managed snapshot): • Convert temporary space. • Create a SmartClone. • Promote a remote volume to a primary volume. • Failover/Failback Volume - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 221
Disk Manager. You may need to assign a drive letter, but the disk should be online and available for use. 18. If the server is running Windows 2008 or later and you promoted a remote application-managed snapshot to a primary volume, start the HP StorageWorks P4000 SAN/iQ CLI and clear the VSS volume - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 222
you can set for snapshots is 30 minutes. The maximum number of snapshots (scheduled and manual combined) you can retain is 50 snapshots per volume. There are practical limits to the number of snapshots that a particular SAN can support and still maintain adequate performance. For information on - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 223
-managed snapshots" on page 216. If the VSS Provider is not installed, SAN/iQ will let you create a point-in-time snapshot (not using VSS). This option quiesces VSS-aware applications on the server before SAN/iQ creates the snapshot. 9. Specify the retention criteria for the snapshot. P4000 SAN - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 224
, see "Understanding snapshots for volume sets" on page 216. When you first create the schedule, the system stores information about the volume set as it exists at that time. If you add volumes to or remove volumes from the volume set using the application, you must update the SAN/iQ schedule. To - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 225
column of the Schedules tab window, this snapshot schedule is marked as paused. 6. Make a note to resume this snapshot schedule at a convenient time. Resume a schedule 1. In the navigation window, select the volume for which you want to resume the snapshot schedule. P4000 SAN Solution user guide 225 - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 226
is available for taking snapshots. Using application-based scripts allows automatic snapshots of a volume. For detailed information, see Chapter 15 on page 255 and the Cliq User Manual, found in the Documentation directory under the CMC Program Files, for information about the SAN/iQ command line - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 227
Remote Copy to copy the newer snapshots that you want to keep, before performing the rollback. See the Remote Copy User Manual for more information about copying data. Requirements for rolling back a volume Best Practices • Stop any applications that are accessing the volume, and log off all related - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 228
. The volume rolls back to the snapshot, deleting any newer snapshots. The rolled back snapshot remains intact underneath the volume and retains the data. Any data that had been added to the volume since the snapshot was created is deleted. 1. If you rolled back an application-managed snapshot, use - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 229
all associated volumes The recommended method for rolling back a snapshot that is part of a snapshot set is to roll back each volume to its corresponding snapshot. For more information about snapshot sets, see "Understanding snapshots for volume sets" on page 216. P4000 SAN Solution user guide 229 - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 230
, stop application servers, or other actions, cancel the operation, perform the necessary tasks, and then do the rollback. 1. Click Cancel. 2. Perform necessary actions. 3. Start the rollback again. Deleting a snapshot When you delete a snapshot, the data necessary to maintain volume consistency are - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 231
snapshot is part of a snapshot set A warning message opens. • To delete all snapshots in the snapshot set, click Delete All Associated Snapshots. • To delete only the snapshot you selected, click Delete Selected Snapshot Only. • To cancel the deletion, click Cancel. P4000 SAN Solution user guide - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 232
232 Using snapshots - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 233
of existing volumes or snapshots. They appear as multiple volumes that share a common snapshot, called a clone point. They share this snapshot data on the SAN. SmartClone volumes can be used to duplicate configurations or environments for widespread use, quickly and without consuming disk space for - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 234
without using additional storage capacity. Each SmartClone volume you create from the master image is a full read/write version of the operating system and has all the same management features as a regular HP StorageWorks P4000 SAN Solution volume. Scenario: Computer training lab You run a computer - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 235
production LUNs and mount them in another environment. Then you can run new software, install upgrades, and perform other maintenance tasks. When the new software or upgrades testing is complete, either redirect your application to the SmartClone volume you have been using, or delete the SmartClone - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 236
local and remote snapshots. • Number of SmartClone volumes-Plan the total number of SmartClone volumes you intend to create as part of your space requirements. Note that you can create up to 25 SmartClone volumes as one operation in the HP StorageWorks P4000 Centralized Management Console, and then - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 237
appended, incrementing to the total number of SmartClone volumes you create. For example, Figure 83 on page 238 shows a SmartClone volume with the base name of "C#" and 10 clones. (The number in parentheses indicates how many snapshots are under that volume.) P4000 SAN Solution user guide 237 - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 238
of using a base name with 10 SmartClone volumes . After you designate a base name for the SmartClone volumes while you are creating them, you can then edit individual names of SmartClone volumes in the table list, before you finish creating them. NOTE: Rename the SmartClone volume at the bottom - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 239
volumes, which are noted in the message. For example, in Figure 85 on page 240, in the cluster Programming, there are 10 SmartClone volumes created from one source volume and its clone point. You want to move the first of the SmartClone volumes, to the cluster SysAdm2. P4000 SAN Solution user guide - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 240
Programming cluster with SmartClone volumes, clone point, and the source volume . In this example, you edit the SmartClone volume, and on the Advanced tab you change the cluster to SysAdm. A confirmation message window opens. This message lists all the volumes and snapshots that will change clusters - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 241
86 Changing one SmartClone volume changes all related volumes and snapshots . When you click OK on the message, all the volumes and snapshots move to the cluster SysAdm. Figure 87 SysAdm cluster now has the SmartClone volumes, clone point, and the source volume . P4000 SAN Solution user guide 241 - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 242
change the cluster or the data protection level of one SmartClone volume, the cluster and data protection level of all the related volumes and snapshots will change. Table 53 Characteristics of SmartClone volumes Shared characteristics Cluster Data protection level Individual characteristics Name - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 243
, it only exists as a single snapshot in the SAN. Therefore, it only uses the space of that single snapshot. The display in the navigation window depicts this by the multiple highlights of the clone point underneath each SmartClone volume that was created from it. P4000 SAN Solution user guide 243 - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 244
spot Figure 89 Clone point appears under each SmartClone volume . NOTE: Remember that a clone point only takes up space on the SAN once. Shared snapshot Shared snapshots occur when a clone point is created from a newer snapshot that has older snapshots below it in the tree. They are designated in - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 245
latest snapshot, C#_SCsnap. That volume has a base name of C#_class. The older two snapshots, C#_snap1 and C#_snap2, become shared snapshots, because the SmartClone volume depends on the shared data in both those snapshots. Table 55 How it works-shared snapshots First, a volume Next, 3 snapshots - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 246
can be deleted. Creating SmartClone volumes You create SmartClone volumes from existing volumes or snapshots. When you create a SmartClone volume from another volume, you first take a snapshot of the original volume. When you create a SmartClone volume from a snapshot, you do not take another - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 247
any individual characteristic, do it in the list before you click OK to create the SmartClone volumes. For example, you might want to change the assigned server of some of the SmartClone volumes. In the list you can change individual volumes' server assignments. P4000 SAN Solution user guide 247 - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 248
and in the Map View tab, shown in Figure 93 on page 249. Because a SmartClone volume is the same as any other volume, the icon is the standard volume icon. However, the clone point and the shared snapshot have unique icons, as illustrated in Figure 88 on page 243. Map view The Map View - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 249
Figure 93 Viewing SmartClone volumes and snapshots as a tree in the Map View . Using views The default view is the tree layout, displayed in Figure 93 on page 249. The tree layout is the most effective view for smaller, more complex hierarchies with multiple clone points, such as clones of clones, - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 250
Figure 94 Viewing the organic layout of SmartClone volumes and related snapshots in the Map View . Viewing clone points, volumes, and snapshots The navigation window view of SmartClone volumes, clone points, and snapshots includes highlighting that shows the relationship between related items. For - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 251
56 Requirements for changing SmartClone volume characteristics Item Description Size Servers Shared or Individual Individual Individual Individual Requirements for Changing May be up to 127 characters. Sets available space on cluster. Existing server defined. P4000 SAN Solution user guide 251 - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 252
Reside in the same management group. • Have sufficient storage systems and unallocated space for the size and data protection level of the volume and all the other related volumes and snapshots being moved. When moving volumes to a different cluster, those volumes temporarily exist on both clusters - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 253
a clone point . Deleting multiple SmartClone volumes Delete multiple SmartClone volumes in a single operation from the Volume and Snapshots node of the cluster. First you must stop any application servers that are using the volumes, and log off any iSCSI sessions. P4000 SAN Solution user guide 253 - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 254
, and select Delete Volumes. A confirmation message opens. 4. When you are certain that you have stopped applications and logged off any iSCSI sessions, check the box to confirm the deletion, and click Delete. It may take a few minutes to delete the volumes and snapshots from the SAN. 254 SmartClone - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 255
supported after the 8.0 release to allow time for converting existing scripts that use java.commandline.CommandLine to the new CLI syntax. Scripting documentation • The HP StorageWorks P4000 SAN/iQ Command-Line Interface User Guide is available from the HP website, and it is installed with the CLI - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 256
256 Working with scripting - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 257
. If you are using the HP P4000 DSM for MPIO, ensure that both the Microsoft MPIO and the DSM for MPIO are installed on the server. Refer to the HP StorageWorks P4000 Windows Solution Pack User Manual. In the CMC, add the server connection to the management group and configure iSCSI access for - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 258
initiator compliance by going to the HP StorageWorks P4000 SAN Solutions Compatibility Matrix at http:// www.hp.com/go/P4000compatibility. CAUTION: Using a noncompliant iSCSI initiator with load balancing can compromise volume availability during iSCSI failover events. 258 Controlling server access - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 259
Guide for servers For detailed information about using iSCSI with the P4000 SAN Solution, including load balancing and CHAP authentication, see Chapter 19. Table 58 Characteristics for new servers Item Name Description Allow access via iSCSI Enable load balancing CHAP not required Initiator Node - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 260
are finished. 6. If you have changed the Enable Load Balancing option, a message opens, notifying you to log servers off and back on to the volumes. This may entail stopping the applications, disconnecting them, reconnecting the applications to the volumes, and then restarting them. Deleting server - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 261
Click New Server and follow the instructions found in Adding server connections to manage- ment groups. 5. Add the volumes. NOTE: The Server cluster settings window opens automatically if inconsistencies are detected in the settings for the servers and volumes. P4000 SAN Solution user guide - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 262
cluster. See Figure 99 on page 262. a. Select the appropriate radio button for the load balancing setting on each server. b. Ensure that each volume listed has the same access permissions. Figure 99 Verify the server cluster settings . When the server cluster is created, you can view the results on - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 263
a server cluster The Edit Server Cluster window includes sections for adding, editing, or removing servers, and managing load balancing and volume access permissions. 1. In the navigation window, select the Servers category, and select the server cluster to edit. P4000 SAN Solution user guide 263 - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 264
for the remaining servers, until the appropriate server and volume connections are in place. Assigning server connections access to volumes After you add a server connection to your management group, you can assign one or more volumes or snapshots to the server connection, giving the server access - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 265
snapshot. 4. From the Permission list, select the permission each server connection should have to the volume or snapshot. 5. Click OK. You can now log on to the volume from the server's iSCSI initiator. See "Completing the iSCSI Initiator and disk setup" on page 267. P4000 SAN Solution user guide - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 266
disk setup" on page 267. Editing server connection and volume assignments You can edit the assignment of volumes and server connections to: • Unassign the volume server connection or restrict permissions, stop any applications from accessing the volume or snapshot, and log off the iSCSI session from - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 267
up volumes and iSCSI, see the operating system-specific documents in the HP StorageWorks P4000 Manuals page of the HP Business Support Center website: http:// www.hp.com/support/manuals In the Storage section, navigate to Disk Storage Systems > P4000 SAN Solutions > HP LeftHand P4000 SAN Solutions - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 268
268 Controlling server access to volumes - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 269
I/Os to help you and HP support and engineering staff understand the load that the SAN is servicing. The Performance Monitor presents real-time performance data in both tabular and graphical form as an integrated feature in the CMC. The CMC can also log the data for short periods of time (hours - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 270
showing overview of cluster activity . Workload characterization example This example lets you analyze the workload generated by a server (ExchServer-1) including IOPS reads, writes, and total and the average IO size. Figure 103 Example showing volume's type of workload . 270 Monitoring performance - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 271
105 Example showing IOPS of two volumes . This example shows two volumes (DB1 and Log1) and compares their total throughput. You can see that Log1 averages nearly 18 times the throughput of DB1. This might be helpful if you want to know which volume is busier. P4000 SAN Solution user guide 271 - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 272
IOPS and throughput generated by the server (ExchServer-1) on two volumes. Figure 107 Example showing activity generated by a specific server . Planning for SAN improvements If you have questions such as these about planning for SAN improvements, the Performance Monitor can help: • Would enabling - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 273
example This example illustrates the total IOPS, throughput, and queue depth of two different clusters (Denver and Boulder), letting you compare the usage of those clusters. You can also monitor one cluster in a separate window while doing other tasks in the CMC. P4000 SAN Solution user guide 273 - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 274
. Load comparison of two volumes example This example shows the total throughput for a cluster and the total throughput of each volume in that cluster. You can see that the Log1 volume generates most of the cluster's throughput. Figure 110 Example comparing two volumes . 274 Monitoring performance - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 275
to the defaults the next time you log in to the CMC. For more information about the performance monitor window, see the following: • "Performance Monitor toolbar" on page 276 • "Performance monitor graph" on page 277 • "Performance monitor table" on page 277 P4000 SAN Solution user guide 275 - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 276
of data to a comma separated values (CSV) file. Button changes to Resume Export Log when export is paused. Temporarily stops exporting of data. Stops the exporting of data. Shows the progress of the current data export, based on the selected duration and elapsed time. 276 Monitoring performance - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 277
statistic. Figure 114 Performance Monitor table . The table shows information about the statistics selected for monitoring. The table values update based on the sample interval setting. To view the statistic definition, hold your mouse pointer over a table row. P4000 SAN Solution user guide 277 - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 278
of the last 100 recorded sample values. Scaling factor used to fit the data on the graph's 0 to 100 scale. Only the line on the performance statistics You can select the performance statistics that you want to monitor. For clusters, volumes, and snapshots, the statistics being reported are based - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 279
. The following statistics are available: Table 62 Performance Monitor statistics Statistic IOPS Reads IOPS Writes IOPS Total Throughput Reads Throughput Writes Throughput Total Average Read Size Average Write Size Definition Cluster Volume or Snapshot NSM Average read requests per second for - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 280
Latency Reads IO Latency Writes IO Latency Total Cache Hits Reads CPU Utilization Memory Utilization Network Utilization Network Bytes Read Network Bytes Write Network Bytes Total Storage Server Total Latency Definition Cluster Volume or Snapshot NSM Average read and write transfer size for the - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 281
disk access consists of a seek and a data transfer. With more data to transfer, the relative cost of the seek decreases. Some applications allow tuning the size of read and write buffers, but there are practical limits to this. Access pattern Disk management group. P4000 SAN Solution user guide 281 - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 282
maintains any changes you make to the statistics only for your current CMC session. It reverts to the defaults the next time you log in to the CMC. For definitions of the available statistics, see "Understanding the performance statistics" on page 278. 1. In the navigation window, log in to the - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 283
opens. Figure 116 Add Statistics window . 4. From the Select Object list, select the cluster, volumes, and storage systems you want to monitor. Use the CTRL key to select multiple objects from the you know that the statistics will not be added again. 8. Click OK. P4000 SAN Solution user guide 283 - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 284
for display. The graph and table data repopulate with the latest values after the next sample interval elapses. 1. In the navigation window, log in to the management group. 2. Select the Performance Monitor node for the cluster you want. The Performance Monitor window opens. 3. Right-click anywhere - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 285
and sets the three default statistics (cluster total IOPS, cluster total throughput, and cluster total queue depth) to zero in the table. The default statistics are set to display and their data update when the next sample interval elapses. 1. In the navigation window, log in to the management group - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 286
default, they are set to display in the graph. You can control which statistics display in the graph, as needed. 1. From the Performance axis uses a scale of 0 to 100. Graph data is automatically adjusted to fit the scale. For example, 10.0, for example 7.5, the system would scale it up to 75 using - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 287
10 minutes to 24 hours. The maximum duration is 999 hours, which is about 41 days. 1. From the Performance Monitor window, click to start the export. 2. In the Log File field, enter the name of the file. By default, the system saves the file to the My Documents list. P4000 SAN Solution user guide 287 - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 288
may be helpful if you are working with technical support or internal personnel to troubleshoot an issue. 1. From the Performance Monitor window, make sure the graph and table display the data you want. 2. Right-click anywhere in the Performance Monitor window, and select Save Image. The Save window - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 289
systems that create a single pool of storage • Managed Snapshots-recurring scheduled snapshots of volumes • Remote Copy-scheduled or manual asynchronous replication of data to remote sites • Multi-Site SAN-automatic synchronous data mirroring between sites Evaluating advanced features Advanced - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 290
when you configure that feature in the CMC. Table 63 Descriptions of advanced features Advanced snapshot. Managed Snapshot Creating schedules to snapshot volumes. You create a schedule to snapshot a volume. Multi-Site SAN Multi-site clusters which synchronously and automatically mirror data - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 291
the remote snapshots. • Delete the remote volume. Retaining the data on the remote target • Make the remote volume into a primary volume. • Disassociate the primary and remote management groups, if the remote copy was between management groups. Scripting evaluation Application-based scripting is - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 292
Feature Being Evaluated Steps to Back Out Remote copy volumes and snapshots • Back out of any remote copy operation. • Delete any when they are in the Available Systems pool or after they are in a management group. One license key is issued per storage system, and that key licenses - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 293
to paste the feature key into a text editing program, such as Notepad. 6. Go to https://webware.hp.com to register and generate the license key. Entering license keys to storage systems When you receive the window. Figure 118 Storage system with a license key . P4000 SAN Solution user guide 293 - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 294
not licensed • Version information about software components of the operating system • Customer information Submitting storage system feature keys Submit the feature keys of all the storage systems in the management group. 1. In the navigation window, select the management group for which you want - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 295
into a text editing program, such as Notepad. 7. Go to https://webware.hp.com to register and generate the license key. NOTE: Record the host management group. 2. Select the Registration tab. 3. Click Registration Tasks, and select Feature Registration from the menu. P4000 SAN Solution user guide - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 296
downloaded from https://webware.hp.com. 2. Copy and paste the appropriate li- 3. Select each .dat file that corresponds to the storage cense key for that storage system into systems in the management error message appears, the error text describes the problem. or trailing spaces in the box. 4. - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 297
moves, or contact information changes. 1. In the navigation window, select a management group. 2. Click on the Registration tab to open that window. 3. for the file, which defaults to a .txt file. 6. Click Save. Verify the information by viewing the saved .txt file. P4000 SAN Solution user guide 297 - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 298
298 Registering advanced features - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 299
19 iSCSI and the HP P4000 SAN Solution The SAN/iQ software uses the iSCSI protocol to let servers access volumes. For fault tolerance and improved performance, use a VIP and iSCSI load balancing when configuring server access to volumes. The following concepts are important when setting up clusters - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 300
Edit Server window. The link opens to the http://www.hp.com/go/P4000compatibility where you log in and search for the HP StorageWorks P4000 SAN Solutions Compatibility Matrix. If your initiator is not on the list, do not enable load balancing. Authentication (CHAP) Server access with iSCSI can use - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 301
way CHAP-Initiators must log in with a target secret to access the volume as in 1-way CHAP. In addition, the target must prove its CHAP What to Configure for the Server in the SAN/iQ Software What to Configure in the iSCSI Initiator Initiator node CHAP name. P4000 SAN Solution user guide 301 - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 302
the documentation for the iSCSI initiator you are using. Linux iSCSI initiators may use a command line interface or a configuration file. NOTE: The initiator node name and secrets set in the SAN/iQ CMC must single host authentication with 1-way CHAP required. 302 iSCSI and the HP P4000 SAN Solution - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 303
more than one iSCSI application server to connect to a volume concurrently without cluster-aware applications and/or file systems in read/write mode could result in data corruption. NOTE: If you enable CHAP on a server, it will apply to all volumes for that server. P4000 SAN Solution user guide 303 - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 304
these installed, servers automatically use HP DSM for MPIO when you log on to volumes from the iSCSI initiator. • If you have dual storage NICs in your server, you can select the Enable multi-path option when logging on to the volume, and log on from each NIC. 304 iSCSI and the HP P4000 SAN Solution - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 305
passwords • Access and configure network interfaces • Delete a NIC bond • Set the TCP speed and duplex, or edit the frame size • Remove the storage system from a management group • Reset the storage system configuration to factory defaults the config file in /etc/. P4000 SAN Solution user guide 305 - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 306
= No pu rtscts = No pu xonxoff = Yes pu askdndir = Yes # End HP LeftHand Networks NSM configuration 2. Start xterm as follows: $ xterm 3. In the xterm window, start Login window opens. 2. Type the user name and password of the administrative user created for the management group. 3. Tab to Login - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 307
NOTE: This user is viewable in the CMC under the management group Administration category. Configuring administrative users Use the Configuration Interface to add new administrative users or to change administrative passwords. You can only change the password for the administrative user that you - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 308
press Enter to complete the network configuration. 5. Press Enter on the confirmation window. A window opens listing the assigned IP address. 6. Open the CMC, and locate the storage system duplex settings, see "Managing settings on network interfaces" on page 80. 308 Using the Configuration Interface - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 309
: Resetting the storage system to factory defaults deletes all data and erases the configuration of the storage system, including administrative users and network settings. 1. On the Configuration Interface main menu, tab to Config Management, and press Enter. P4000 SAN Solution user guide 309 - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 310
2. Tab to Reset to factory defaults, and press Enter. A window opens, warning you that resetting the storage system configuration will delete all data on the storage system and reboot the storage system. 3. Tab to Ok, and press Enter. 4. On the Configuration Management window, tab to Done, and press - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 311
with a management platform. • HP Insight Remote Support Advanced: This software provides comprehensive remote monitoring and proactive service support for nearly all HP servers, storage, network, and SAN environments, plus selected non-HP servers that have a support obligation with HP. It is - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 312
/iQ Command-Line Interface User Manual You can find these documents from the Manuals page of the HP Business Support Center website: http://www.hp.com/support/manuals In the Storage section, click Disk Storage Systems and then select P4000 SAN Solutions. HP websites For additional information, see - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 313
. TIP: Provides helpful hints and shortcuts. Customer self repair HP customer self repair (CSR) programs allow you to repair your StorageWorks product. If a CSR part needs replacing, HP ships the part directly to you so that you can install it at your convenience. P4000 SAN Solution user guide 313 - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 314
that makes our storage hardware and software products easy to install, operate, and maintain. Your feedback is invaluable in letting us know how we can improve your experience with HP documentation. Please take 10 minutes to visit the following web site and complete our online survey. This - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 315
on which disks need to be replaced, contact customer support. Prerequisites • All Network RAID-10, Network RAID-10+1, Network RAID-10+2, Network RAID-5, and Network RAID-6 volumes and snapshots should show a status of Normal. Network RAID-0 volumes may be offline. P4000 SAN Solution user guide 315 - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 316
in the navigation window and selecting Add Virtual Manager. Repair the storage system Use the Repair Storage System function to replace a disk and trigger only one resync of the data. Prerequisite If there are Network RAID-0 volumes that are offline, you must either replicate them or delete them - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 317
the RAID level of the storage system later. 2. Power off 1 disk. See the procedures for powering off a disk in RAID 0 in "Manually power off the disk in the CMC for RAID 0" on page 73. 3. Physically replace the disk in the storage system. 4. Power on the disk. P4000 SAN Solution user guide 317 - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 318
when replacing a disk in an Dell 2950, NSM 2060, or NSM 4150. Never reinsert the same drive or another drive from the same Dell 2950, NSM 2060, or NSM 4150. Rebuilding data The following steps take you through the steps to first rebuild RAID on the storage system and then to rebuild data on the - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 319
appears in the management group and the icon in the navigation window flashes for a few minutes as it initializes. Restarting a manager Before proceeding, make sure that the storage system has finished initializing and is completely added to the management group. P4000 SAN Solution user guide 319 - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 320
double-check that the order of the storage systems in the cluster list matches the original order. Rebuild volume data After the storage system is successfully added back to the cluster, the adjacent storage systems start rebuilding data on the repaired storage system. 320 Replacing disks reference - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 321
to the original settings. Finishing up 1. Contact Customer Support for an RA number. 2. Return the original disks for failure analysis using the prepaid packing slip in the replacement package. Put the RA number on the package as instructed by Customer Support. P4000 SAN Solution user guide 321 - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 322
322 Replacing disks reference - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 323
the documentation and/or other materials provided with the distribution. • Neither the name of the Kirill Grouchnikov and contributors nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. P4000 SAN Solution - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 324
324 Third-party licenses - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 325
snapshot temporary space. CLI Command-line interface for the SAN/iQ software. cluster A cluster is a grouping of storage systems that create the storage pool from which you create volumes. CMC Centralized Management Console. See HP StorageWorks P4000 Centralized Management Console. P4000 SAN - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 326
and application servers. The community string acts as an authentication password. It identifies hosts that are allowed read-only access to the SNMP data. The Configuration Summary displays an overview of the volumes, snapshots, storage systems, and iSCSI sessions in the HP StorageWorks P4000 SAN - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 327
user-definable name that displays below the storage system icon in the network window. It is also visible when the users browse the network. HP StorageWorks P4000 Centralized Management Console Management interface for the SAN/iQ software. ID LED LED lights on the physical storage system so that - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 328
data for a volume across all storage systems in the cluster. Network RAID-10, 10+1 or 10+2 is required to protect data in an HP P4000 SAN solution. network window Graphically depicts the status of each storage system. Storage systems on the network are either available or part of a management - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 329
disk has been inserted in a drive. • Off - Data cannot be stored on the storage system. The storage system is offline and flashes red in the network window. register remote copy pair remote snapshot remote volume Register individual storage systems to use add-on applications. Registration - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 330
this snapshot data on the SAN. snapshot A fixed version of a volume for use with backup and other applications. snapshot set Application-managed snapshots created for a volume set. SNMP traps Use traps to have an SNMP tool send alerts when a monitoring threshold is reached. solution pack HP - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 331
storage server Storage server software maintains the customer's data. It reads to and writes from disks in response to customer reads and writes of SANiQ volumes. stripe Striped data is stored across all disks in the array, which increases performance but does not provide fault tolerance. - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 332
VSS Provider writable space HP StorageWorks P4000 VSS Provider is the hardware provider that supports the Volume Shadow Copy Service on the HP P4000 SAN Solution. See temporary space 332 Glossary - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 333
management groups, 146 managers to management group, 158 requirements for snapshots, 214 requirements for volumes, 206 routes, 106 servers to management groups, 258 snapshot schedules, 223 snapshots , 116 agents disabling SNMP, 132 enabling for SNMP, 130, 131 P4000 SAN Solution user guide 333 - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 334
using snapshots for protection against data deletion, 215 Best Practice Summary cluster-level data protection, 156 disk level data protection, 156 disk protection using RAID, 156 large single-system SATA cluster, 156 network speed and bandwidth, 156 overview, 155 systems running managers, 156 volume - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 335
, 201 troubleshooting, 182 usable space in, 201 Use Summary window, 198 viewing capacity and useage of, 198 Volume Use window, 200 CMC see Centralized Management Console, 25 communication interface for SAN/iQ communication, 107 compliant iSCSI initiators, 300 configuration best practice summary - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 336
data protection planning, 191 data reads and writes and RAID status, 60 data redundancy and RAID status, 60 data transmission, 84 date setting with NTP, 112 setting without NTP, 113 date and time for scheduled snapshot, 223 decreasing volume size, 211 defaults restoring for the Performance Monitor - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 337
management groups See HP StorageWorks P4000 Remote Copy User Guide disaster recovery best practice, 172 starting virtual manager, 174 using a virtual manager, 169 disk arrangement in storage systems, 63 disk setup report, 61 managing, 61 managing in storage system, 61 powering off through the CMC - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 338
events, 128 performance data, 287 performance statistics to a CSV file, 287 support logs, 144 F Failover Manager, 150, 151 and Multi-Site SAN, 150 overview, 165 requirements for, 165 using in Multi-Site SAN, 165 fault tolerance, 299 data protection level for volumes, 191 network interface bonding - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 339
support, 311 HP DSM for MPIO, 299 I I/O performance, 182 IBM x3650 disk arrangement in, 65 icons licensing, 289 used in Centralized Management Console, 28 identifying network interfaces, 85 increasing volume size, 211 informational events defined, 121 Insight Remote Support software, 311 installing - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 340
targets, 300 changing or removing IP address, 181 L layout of disks in storage systems, 63 license information, 296 license keys, 292 licensing icons, 289 lines changing the color of in the Performance Monitor, 286 changing the style of in the Performance Monitor, 286 displaying or hiding in the - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 341
Information Base See MIB manager IP addresses updating, 108 managers Failover, 150, 151 functions of, 149 implications of stopping, 158 overview, 149 quorum and fault tolerance, 149 starting, 158 stopping, 158 virtual, 169 managers on storage systems Best Practice Summary, 156 managing disks, 61 - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 342
add-on applications, 289 Centralized Management Console, 25 clusters, 177 disk replacement in special cases, 315 Failover Manager, 165 management groups, 145 managers, 149 network, 79 provisioning storage, 189 reporting, 135 setting date and time, 111 SmartClone volumes, 233 snapshots, 196, 213 - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 343
planning data protection, 191 RAID configuration, 56 SmartClone volumes, 235 snapshots, 197, 214 volume size, 189 volumes, 190, 205 planning capacity full provisioning method, 190 thin provisioning method, 190 point-in-time snapshots defined, 213 pool of storage, 145 powering off disk, using CMC - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 344
data when not running manager, 316 rebuild volume data, 320 rebuilding RAID, 76, 77 rate for RAID, 59 reclaimable space in volumes, 200 reconfiguring RAID, 59 recreate the RAID array, 318 recurring snapshots, 222 344 redundant array of independent disks See RAID registering add-on applications - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 345
, 269 workload characterization example, 270 SAN configuration best practice summary, 155 SAN/iQ upgrading, 46, 47 saved space in cluster, 199 saved space in volumes, 200 saving diagnostic reports, 136 log files for technical support, 141 log files of management group configurations, 160 log files - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 346
up a RAID disk, 62 shared snapshots, 244 shutting down a management group, 161 single disk replacement in RAID 0, 73 Single Host Configuration in iSCSI, 302 single system, large cluster using SATA Best Practice Summary, 156 sites defined, 28 size changing for volumes, 211 for snapshots, 197 planning - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 347
sample data clearing, 284 status dedicated boot devices, 50 NIC bond, 99 RAID, 60 safe to remove disk, 72 storage server inoperable, 183 storage server overloaded, 183 storage system, 183 stopping managers, 158 managers, implications of, 158 virtual manager, 176 P4000 SAN Solution user guide 347 - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 348
on network, 25, 36 T Tab window, 28 TCP frame size, 82 speed and duplex, 81 status, 80 status tab, 81 TCP/IP tab, 85 technical support HP, 311 saving log files for, 141 service locator website, 312 temporary space deleting, 221 for read/write snapshots, 221 making application-managed snapshot - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 349
creating application-managed snapshots for, 216, 217 creating schedules to snapshots for, 224 deleting application-managed snapshots for, 211, 230 volume size best practice for setting, 190 volume use window, 200 volume-level data protection Best Practice Summary, 156 P4000 SAN Solution user guide - HP P4000 | 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 350
, 267 volumes and snapshots availability, 49 VSA cloning, 145 disk status, 65 frame size, 79 network interface, 79 NIC bonding, 79 NIC flow control, 79 RAID rebuild rate, 59 reconfiguring RAID, 59 recreate disk, 65 speed/duplex, 79 storage server overloaded, 183 virtual RAID and data safety and
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HP StorageWorks
P4000 SAN Solution user guide
This guide provides information for configuring and using the HP StorageWorks SAN Solution. It includes
hardware configuration and information about designing and implementing a P4000 SAN. The intended
audience is system administrators responsible for implementing, maintaining, and managing a P4000 SAN
Solution.
Part Number: AX696-96036
Fourth edition: November 2010