HP StoreVirtual 4000 9.0 HP StorageWorks P4000 Multi-Site HA/DR Solution Pack
HP StoreVirtual 4000 Manual
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- HP StoreVirtual 4000 | 9.0 HP StorageWorks P4000 Multi-Site HA/DR Solution Pack - Page 1
include designs for network configurations and instructions about implementing the network designs. The intended audience is system administrators who manage HP P4000 SAN solutions. For the latest version of this guide, see the HP website http://www.hp.com/support/manuals. Part Number: AX696-96027 - HP StoreVirtual 4000 | 9.0 HP StorageWorks P4000 Multi-Site HA/DR Solution Pack - Page 2
is subject to change without notice. The only warranties for HP products and services are set forth services. Nothing herein should be construed as constituting an additional warranty. HP shall not be liable for technical or editorial errors or omissions contained herein. Acknowledgements Microsoft - HP StoreVirtual 4000 | 9.0 HP StorageWorks P4000 Multi-Site HA/DR Solution Pack - Page 3
28 Fault tolerant manager configurations 28 Installing and configuring a Failover Manager 28 Best practice ...28 Configuring sites ...29 Viewing sites in the CMC ...29 Sites map view ...30 Designating a primary site 31 Adding a site ...31 P4000 Multi-Site HA/DR Solution Pack user guide 3 - HP StoreVirtual 4000 | 9.0 HP StorageWorks P4000 Multi-Site HA/DR Solution Pack - Page 4
from a Multi-Site cluster 33 To remove the storage systems from the site 33 Removing servers from a site ...34 3 Support and other resources 35 Contacting HP ...35 Subscription service ...35 HP Insight Remote Support Software 35 New and changed information in this edition 36 Related information - HP StoreVirtual 4000 | 9.0 HP StorageWorks P4000 Multi-Site HA/DR Solution Pack - Page 5
Figures 1 Sample configuration for two-site, data protection level Network RAID-10+2 9 2 Three physical sites: cluster spans 30 16 Site assignments in a Multi-Site cluster 30 17 Deleting a site that contains a storage system causes this warning 32 P4000 Multi-Site HA/DR Solution Pack user guide 5 - HP StoreVirtual 4000 | 9.0 HP StorageWorks P4000 Multi-Site HA/DR Solution Pack - Page 6
Tables 1 Data protection levels and the supported number of sites 8 2 Common configurations of Multi-Site SANs and mangers 10 3 Alternative Multi-Site SAN configurations 13 4 Common Multi-Site network configurations and failure protection of each 14 5 Failure conditions and resolutions 19 6 - HP StoreVirtual 4000 | 9.0 HP StorageWorks P4000 Multi-Site HA/DR Solution Pack - Page 7
, designed to run as a virtual appliance in a VMware environment. The supported on VMware Server, Workstation, and Player. For detailed information about installing and configuring the Failover Manager, see "Using Specialized Managers" in the HP StorageWorks SAN Solutions Storage System User Guide - HP StoreVirtual 4000 | 9.0 HP StorageWorks P4000 Multi-Site HA/DR Solution Pack - Page 8
the number of sites in the configuration. For instance, if the storage cluster spans three sites, then volumes must be configured as Network RAID-10+1 in order Multi-Site SAN and associated supported configurations. Table 1 Data protection levels and the supported number of sites Data protection - HP StoreVirtual 4000 | 9.0 HP StorageWorks P4000 Multi-Site HA/DR Solution Pack - Page 9
site configurations can be used with the Multi-Site SAN software. These configurations provide varying levels of availability and redundancy. Table 2 on page 10 shows the recommended configurations. Select the one that best matches your environment. P4000 Multi-Site HA/DR Solution Pack user guide 9 - HP StoreVirtual 4000 | 9.0 HP StorageWorks P4000 Multi-Site HA/DR Solution Pack - Page 10
Figure 5 on page 12 illustrate best practice for four configurations. Note that management groups and Multi-Site clusters can have many more storage systems than are depicted here. These graphics however, illustrate the significant points of site-to-cluster mappings and the appropriate placement of - HP StoreVirtual 4000 | 9.0 HP StorageWorks P4000 Multi-Site HA/DR Solution Pack - Page 11
with Network RAID-10 Figure 2 Three physical sites: cluster spans two sites, Failover Manager in third site . 1. Volumes are configured with Network RAID-10 Figure 3 Two physical sites, logical third site: cluster spans two sites, Failover Manager in logical third site . P4000 Multi-Site HA - HP StoreVirtual 4000 | 9.0 HP StorageWorks P4000 Multi-Site HA/DR Solution Pack - Page 12
1. Volumes are configured with Network RAID-10+1 Figure 4 Three physical sites: cluster spans three sites . 1. Volumes are configured with Network RAID-10 Figure 5 Two physical sites: cluster spans two sites, one site is the primary site . 12 Designing a Multi-Site SAN - HP StoreVirtual 4000 | 9.0 HP StorageWorks P4000 Multi-Site HA/DR Solution Pack - Page 13
. For more information about the Virtual Manager, see the chapter "Special Managers" in the HP StorageWorks SAN Solutions Storage System User Guide. Using Remote Copy with Multi-Site SAN The cluster contains Remote Copy, which like all other SAN/iQ features, is compatible with Multi-Site SAN. You - HP StoreVirtual 4000 | 9.0 HP StorageWorks P4000 Multi-Site HA/DR Solution Pack - Page 14
between the sites for redundancy. The network should be configured so that a link failure does not cause the Multi- storage systems assigned to the same site. • With MPIO and the HP DSM-The system sets up iSCSI sessions only to storage systems assigned to the same site. • With MPIO and the Microsoft - HP StoreVirtual 4000 | 9.0 HP StorageWorks P4000 Multi-Site HA/DR Solution Pack - Page 15
in this section. The clusters and sites can have many more storage systems than are depicted here. However, the pictures are more focused on the network design. 1. Dual redundant GigE links Figure 6 Dual redundant links between two sites . P4000 Multi-Site HA/DR Solution Pack user guide 15 - HP StoreVirtual 4000 | 9.0 HP StorageWorks P4000 Multi-Site HA/DR Solution Pack - Page 16
1. Dual redundant GigE links 2. Optional redundant path Figure 7 Dual redundant links between two sites with Failover Manager in logical third site . 1. Dual redundant GigE links Figure 8 Triangular network with Failover Manager . 16 Designing a Multi-Site SAN - HP StoreVirtual 4000 | 9.0 HP StorageWorks P4000 Multi-Site HA/DR Solution Pack - Page 17
1. Core network hub and spoke Figure 9 Hub and spoke network core with redundant links out to each site . 1. Full mesh core network Figure 10 Combination full-mesh core with triangular links to all sites . P4000 Multi-Site HA/DR Solution Pack user guide 17 - HP StoreVirtual 4000 | 9.0 HP StorageWorks P4000 Multi-Site HA/DR Solution Pack - Page 18
multiple subnets in a Multi-Site SAN, the HP StorageWorks P4000 DSM or Microsoft DSM will only build I/O paths to the storage systems that are in the same subnet as the application server. See the HP StorageWorks P4000 Windows Solution Pack User Manual for more information about MPIO. 18 Designing - HP StoreVirtual 4000 | 9.0 HP StorageWorks P4000 Multi-Site HA/DR Solution Pack - Page 19
storage cluster, log on to both VIPs in the cluster. If you are using the HP P4000 DSM for MPIO, see "Using the HP P4000 DSM for MPIO," in the HP StorageWorks P4000 Windows Solution Pack User Manual. Using the Primary Site designation in two-site configurations The Multi-Site SAN software supports - HP StoreVirtual 4000 | 9.0 HP StorageWorks P4000 Multi-Site HA/DR Solution Pack - Page 20
software is modified to prevent any data integrity issues in the event any of the offline storage systems are brought back online. Best practices for configuring quorum and managers in a Multi-Site SAN environment Configuring the appropriate number of managers in a Multi-Site SAN on the appropriate - HP StoreVirtual 4000 | 9.0 HP StorageWorks P4000 Multi-Site HA/DR Solution Pack - Page 21
configuration Manager configuration Number of managers and number Needed to maintain quorum Two physical sites, logical third site For two storage the logical third site For four storage systems or more, run: • two three storage systems, run: • one manager in each site For six or more storage - HP StoreVirtual 4000 | 9.0 HP StorageWorks P4000 Multi-Site HA/DR Solution Pack - Page 22
22 Designing a Multi-Site SAN - HP StoreVirtual 4000 | 9.0 HP StorageWorks P4000 Multi-Site HA/DR Solution Pack - Page 23
in the HP StorageWorks P4000 SAN Solution User Manual for information about registering your storage systems. Have the following information ready: • The layout for storage systems and sites • IP addresses, subnets , Clusters, and Volumes Wizard. P4000 Multi-Site HA/DR Solution Pack user guide 23 - HP StoreVirtual 4000 | 9.0 HP StorageWorks P4000 Multi-Site HA/DR Solution Pack - Page 24
configured, you need to review the manager configuration and adjust it according to the Multi-Site configuration you have planned. See "Configuring cluster. 2. Create a site and then assign storage systems to the site. 3. Create the additional sites with storage systems, up to a total of three sites - HP StoreVirtual 4000 | 9.0 HP StorageWorks P4000 Multi-Site HA/DR Solution Pack - Page 25
Next. Creating sites When creating a new site, you first create the site and then assign storage systems to that site: 1. Click New to open the New Site window. 2. Enter a which shows detailed information about the storage systems in the cluster. P4000 Multi-Site HA/DR Solution Pack user guide 25 - HP StoreVirtual 4000 | 9.0 HP StorageWorks P4000 Multi-Site HA/DR Solution Pack - Page 26
to the criteria described in "Preparing to convert an existing SAN to a Multi-Site SAN" on page 23. Prerequisites • Upgrade all storage systems to SAN/iQ software version 7.0 or later. • Obtain the feature keys for storage systems to be used in the Multi-Site cluster. • Apply the feature keys to the - HP StoreVirtual 4000 | 9.0 HP StorageWorks P4000 Multi-Site HA/DR Solution Pack - Page 27
have just configured. 13. Click Close when you finish reviewing the storage systems in the group and whether you create a Multi-Site cluster. In some configurations, a Virtual Virtual Manager because of its automated failover/failback capabilities. P4000 Multi-Site HA/DR Solution Pack user guide 27 - HP StoreVirtual 4000 | 9.0 HP StorageWorks P4000 Multi-Site HA/DR Solution Pack - Page 28
on VMware ESX Server, VMware Server, or VMware Player. For detailed instructions for installing and configuring the Failover Manager see "Using Specialized Managers" in the HP StorageWorks P4000 SAN Solution User Manual. Best practice Install the Failover Manager on a server in a separate physical - HP StoreVirtual 4000 | 9.0 HP StorageWorks P4000 Multi-Site HA/DR Solution Pack - Page 29
node in the navigation window. The Sites node is displayed in every management group. Typically, however, the Sites Details tab shows the storage systems as unassigned. The site designation has no effect outside of the Multi-Site SAN configuration. P4000 Multi-Site HA/DR Solution Pack user guide 29 - HP StoreVirtual 4000 | 9.0 HP StorageWorks P4000 Multi-Site HA/DR Solution Pack - Page 30
). Sites map view The Map View tab is useful for viewing the site assignments of the storage systems and servers. For more information on using the map view tools, see the HP StorageWorks SAN Solutions Storage System User Guide. Sites map views include the following: 30 Implementing a Multi-Site SAN - HP StoreVirtual 4000 | 9.0 HP StorageWorks P4000 Multi-Site HA/DR Solution Pack - Page 31
up a primary configuration, select the Primary box. 5. In the Site Systems section, click Add to add storage systems to the site storage systems, except for the Failover Manager, which can reside in a site by itself. • Adding or removing servers. P4000 Multi-Site HA/DR Solution Pack user guide - HP StoreVirtual 4000 | 9.0 HP StorageWorks P4000 Multi-Site HA/DR Solution Pack - Page 32
, deleting a site changes the cluster from a Multi-Site cluster to a standard cluster. If you then remove the storage system(s) assigned to that configured and operating, you may want to add storage systems to the cluster for additional capacity or to create a new site. While you can add storage - HP StoreVirtual 4000 | 9.0 HP StorageWorks P4000 Multi-Site HA/DR Solution Pack - Page 33
• Plan the IP addresses and locations for the new storage systems to fit into the overall design for your Multi-Site SAN. To add capacity 1. Add the license keys to the new storage systems. See "Registering Advanced Features" in the HP StorageWorks P4000 SAN Solution User Manual for more information - HP StoreVirtual 4000 | 9.0 HP StorageWorks P4000 Multi-Site HA/DR Solution Pack - Page 34
Number of Managers" in the chapter, "Working with Management Groups" in the HP StorageWorks P4000 SAN Solution User Manual. Removing servers from a site You can remove servers from a site as server use and needs change. To remove servers from a site: 1. Select the Sites node in the navigation - HP StoreVirtual 4000 | 9.0 HP StorageWorks P4000 Multi-Site HA/DR Solution Pack - Page 35
Notifications may be sent to your authorized HP Channel Partner for on-site service, if configured and available in your country. The software is available in two variants: • HP Insight Remote Support Standard: This software supports server and storage devices and is optimized for environments with - HP StoreVirtual 4000 | 9.0 HP StorageWorks P4000 Multi-Site HA/DR Solution Pack - Page 36
[and websites] provide related information: • HP StorageWorks P4000 SAN Solution 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 - HP StoreVirtual 4000 | 9.0 HP StorageWorks P4000 Multi-Site HA/DR Solution Pack - Page 37
and complete our online survey. This will provide us with valuable information that we will use to improve your experience in the future. http://www.hp.com/support/storagedocsurvey Thank you for your time and your investment in HP storage products. P4000 Multi-Site HA/DR Solution Pack user guide 37 - HP StoreVirtual 4000 | 9.0 HP StorageWorks P4000 Multi-Site HA/DR Solution Pack - Page 38
38 Support and other resources - HP StoreVirtual 4000 | 9.0 HP StorageWorks P4000 Multi-Site HA/DR Solution Pack - Page 39
preferred NIC resumes operation. At that point, data transfer resumes on the storage systems that create the storage pool from which you create volumes. CMC Centralized Management Console. See HP StorageWorks P4000 Centralized Management Console. P4000 Multi-Site HA/DR Solution Pack user guide - HP StoreVirtual 4000 | 9.0 HP StorageWorks P4000 Multi-Site HA/DR Solution Pack - Page 40
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 Solution. It provides an overview of the storage network broken out by management groups. Also known as - HP StoreVirtual 4000 | 9.0 HP StorageWorks P4000 Multi-Site HA/DR Solution Pack - Page 41
point-in-time statistics about the performance and health of the storage system, its drives, and configuration. hostname The hostname on a storage system is the user-definable name that displays below the storage files for the storage system are stored both locally on the storage system and are - HP StoreVirtual 4000 | 9.0 HP StorageWorks P4000 Multi-Site HA/DR Solution Pack - Page 42
stored as parity distributed across the disks. Parity allows the storage system to use more disk capacity for data storage. peer site Absence of a primary site designation makes all the sites peer sites. primary site A site designation assigned by the administrator in the HP configurations service - HP StoreVirtual 4000 | 9.0 HP StorageWorks P4000 Multi-Site HA/DR Solution Pack - Page 43
Command Line Interface. restripe Striped data is stored across all disks in the cluster. You might change the configuration of a volume, for example, change data protection level, add a storage system, or remove a storage system. Because of your change, the pages in the volume must be reorganized - HP StoreVirtual 4000 | 9.0 HP StorageWorks P4000 Multi-Site HA/DR Solution Pack - Page 44
will display these older snapshots that they share, as well as the clone point. site A user-designated location in which storage systems are installed. Multi-Site SAN configurations have multiple sites with storage systems in each site, and each site has its own subnet. A site can be a logical - HP StoreVirtual 4000 | 9.0 HP StorageWorks P4000 Multi-Site HA/DR Solution Pack - Page 45
Also, you can manually synchronize if necessary virtual IP address virtual IP address A highly available address that ensures that if a storage virtual device communicated to the operating system and the applications. VSS Volume Shadow Copy Service P4000 Multi-Site HA/DR Solution Pack user guide - HP StoreVirtual 4000 | 9.0 HP StorageWorks P4000 Multi-Site HA/DR Solution Pack - Page 46
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 46 Glossary - HP StoreVirtual 4000 | 9.0 HP StorageWorks P4000 Multi-Site HA/DR Solution Pack - Page 47
installing Failover Manager, 28 quorum and manager configuration, 20 sites and quorum managers, 10 C capacity, adding to sites, 32 changing cluster type, 32 clusters changing from Multi-Site to standard, 32 creating with Multi-Site wizard, 24 removing storage systems from Multi-Site, 33 CMC, viewing - HP StoreVirtual 4000 | 9.0 HP StorageWorks P4000 Multi-Site HA/DR Solution Pack - Page 48
8 site and manager configuration, 9 HP technical support, 35 I implementing the Multi-Site SAN, 23 Insight Remote Support software, 35 installation creating, 24 removing storage systems from, 33 wizard, 27 Multi-Site SAN alternative configurations, 13 common configurations with recommended Failover - HP StoreVirtual 4000 | 9.0 HP StorageWorks P4000 Multi-Site HA/DR Solution Pack - Page 49
, 33 viewing in the CMC, 29 storage systems adding to sites, 32 removing from a site, 33 subnets setting up multiple for a Multi-Site SAN, 18 setting with MPIO, 18 Subscriber's Choice, HP, 35 support software, remote, 35 T technical support HP, 35 service locator website, 36 typographic conventions - HP StoreVirtual 4000 | 9.0 HP StorageWorks P4000 Multi-Site HA/DR Solution Pack - Page 50
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HP StorageWorks
P4000 Multi-Site HA/DR Solution Pack user
guide
Abstract
This guide contains detailed instructions for designing and implementing the Multi-Site SAN features of the HP
P4000 SAN Solution. The Multi-Site SAN features enable you to synchronously and automatically mirror data
between geographic sites. Topics include designs for network configurations and instructions about implementing
the network designs. The intended audience is system administrators who manage HP P4000 SAN solutions.
For the latest version of this guide, see the HP website
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Part Number: AX696-96027
Fourth edition: November 2010