Dell PowerVault MD3620i Owner's Manual
Dell PowerVault MD3620i Manual
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- Dell PowerVault MD3620i | Owner's Manual - Page 1
Dell PowerVault MD3600i and MD3620i Storage Arrays Owner's Manual Regulatory Model: E03J Series and E04J Series Regulatory Type: E03J001 and E04J001 - Dell PowerVault MD3620i | Owner's Manual - Page 2
instructions Dell Inc. is strictly forbidden. Trademarks used in this text: Dell™, the DELL logo, PowerEdge™, PowerVault™, and OpenManage™ are trademarks of Dell Dell Inc. disclaims any proprietary interest in trademarks and trade names other than its own. Regulatory Model: E03J Series and E04J Series - Dell PowerVault MD3620i | Owner's Manual - Page 3
19 About This Document 19 Inside the Box of the Dell PowerVault MD3600i Series Storage Array 19 MD3600i Series Storage Array 20 Dell PowerVault Modular Disk Storage Manager 20 Dell PowerVault Modular Disk Configuration Utility 20 Other Information You May Need 21 2 Planning: About - Dell PowerVault MD3620i | Owner's Manual - Page 4
. . . 32 RAID Controller Module-Additional Features . . . . . 34 Battery Backup Unit 34 Storage Array Thermal Shutdown 34 System Password Reset 35 Cache Functions and Features 35 Cache Mirroring 35 Write-Back Cache 35 Write-Through Cache 36 4 Planning: MD3600i Series Storage Array Terms and - Dell PowerVault MD3620i | Owner's Manual - Page 5
Disk Group Defragmentation 47 Disk Group Operations Limit 47 RAID Background Operations Priority 47 Virtual Disk Migration and 54 Multi-Path Software 54 Preferred and Alternate Controllers and Paths 55 Virtual Disk Ownership 55 Load Balancing 56 Monitoring MD3600i Series System Performance . - Dell PowerVault MD3620i | Owner's Manual - Page 6
Management Window 62 Array Management Window 63 6 Configuration: About Your Storage Array 65 Out-of-Band and In-Band Management 65 Storage Arrays 66 Adding Storage Arrays 66 Setting Up Your Storage Array 68 Locating Storage Arrays 70 Naming or Renaming Storage Arrays 70 Setting a Password - Dell PowerVault MD3620i | Owner's Manual - Page 7
Setting the Storage Array RAID Controller Module Clocks 82 7 Configuration: Using iSCSI 83 Changing the iSCSI Target Authentication 83 86 Changing the iSCSI Target Discovery Settings . . . . . 86 Configuring the iSCSI Host Ports 87 Advanced iSCSI Host Ports Settings 89 Viewing or Ending - Dell PowerVault MD3620i | Owner's Manual - Page 8
Removing a Host Group 101 Host Topology 101 Starting or Stopping the Host Context Agent 102 I/O Data Path Protection 103 Managing Host Port Identifiers 104 10 Configuration: Disk Groups and Virtual Disks 107 Creating Disk Groups and Virtual Disks 107 Creating Disk Groups 108 Locating a Disk - Dell PowerVault MD3620i | Owner's Manual - Page 9
126 Configuring Hot RAID Controller Module Ownership of a Disk Group 135 Changing the RAID Level of a Disk Group . . . . . 137 Restricted Mappings 137 Changing the RAID Controller Module Ownership of a Virtual Disk or a Disk Group . . . . 139 Changing the RAID Level of a Disk Group 141 Storage - Dell PowerVault MD3620i | Owner's Manual - Page 10
Group 145 Exporting a Disk Group 145 Import Disk Group 146 Importing a Disk Group 146 Storage Array Media Scan 147 Changing Media Scan Settings 148 Suspending the Media Scan 149 11 Configuration: Premium Feature- Snapshot Virtual Disks 151 Creating a Snapshot Virtual Disk Using the Simple - Dell PowerVault MD3620i | Owner's Manual - Page 11
a Snapshot Virtual Disk 167 Re-Creating a Snapshot Virtual Disk 168 12 Configuration: Premium Feature- Virtual Disk Copy 169 Creating a Virtual Disk Copy for RAID Controller Module Ownership . . . . . 174 Failed RAID Controller Module 175 Copy Manager 175 Copying the Virtual Disk 175 Storage - Dell PowerVault MD3620i | Owner's Manual - Page 12
Prerequisites 186 Device Mapper Configuration Steps 187 Linux Host Server Reboot Best Practices . . . . 191 Important Information About Special Partitions 192 Limitations and Known Issues 193 Troubleshooting 194 15 Management: Firmware Downloads . . . 197 Downloading RAID Controller and NVSRAM - Dell PowerVault MD3620i | Owner's Manual - Page 13
RAID Controller and NVSRAM Firmware 198 Downloading Only NVSRAM Firmware 201 Downloading Physical Disk Firmware 203 Downloading MD1200 Series Expansion Module EMM Firmware 205 Self-Monitoring Analysis and Reporting Technology (SMART 206 Media Errors and Unreadable Sectors 207 16 Management - Dell PowerVault MD3620i | Owner's Manual - Page 14
Panel 228 Backplane 229 Removing the Backplane 229 Installing the Backplane 232 17 Management: Firmware Inventory . . . . 233 Viewing the Firmware Inventory 233 18 Management: System Interfaces 235 Microsoft Services 235 Virtual Disk Service 235 Volume Shadow-Copy Service 235 14 Contents - Dell PowerVault MD3620i | Owner's Manual - Page 15
Troubleshooting: Your Storage Array Software 237 Start-Up Routine 237 Device Health Conditions 237 Storage Array Support Data 241 Automatically Collect the Support Bundle Data . . . . 241 Retrieving Trace Buffers 242 Collecting Physical Disk Data 244 Event Log 245 Recovery Guru 246 Storage - Dell PowerVault MD3620i | Owner's Manual - Page 16
Module 264 Troubleshooting Array Cooling Problems 265 Troubleshooting Expansion Enclosure Management Modules 265 Troubleshooting RAID Controller Modules 266 Troubleshooting Hard Drives 268 Troubleshooting Array and Expansion Enclosure Connections 269 Troubleshooting a Wet Storage Array 269 - Dell PowerVault MD3620i | Owner's Manual - Page 17
Critical Conditions 272 Noncritical Conditions 272 21 Getting Help 273 Contacting Dell 273 Index 275 Contents 17 - Dell PowerVault MD3620i | Owner's Manual - Page 18
18 Contents - Dell PowerVault MD3620i | Owner's Manual - Page 19
see Dell PowerVault MD3600i and MD3620i Storage Array Deployment Guide at support.dell.com/manuals. Inside the Box of the Dell PowerVault MD3600i Series Storage Array Unless specified otherwise, MD3600i Series represents the Dell PowerVault MD3600i and PowerVault MD3620i. Your MD3600i Series product - Dell PowerVault MD3620i | Owner's Manual - Page 20
Storage Manager Dell PowerVault Modular Disk Storage Manager (MDSM) is a graphical user interface (GUI) application, used to configure and manage one or more MD3600i Series storage arrays. The MDSM software is available on the MD3600i Series resource media. Dell PowerVault Modular Disk Configuration - Dell PowerVault MD3620i | Owner's Manual - Page 21
, are available at support.dell.com/manuals. • Getting Started Guide provides an overview of setting up and cabling your storage array. • Deployment Guide provides installation and configuration instructions for both software and hardware. • Storage Manager CLI Guide provides information about using - Dell PowerVault MD3620i | Owner's Manual - Page 22
22 Introduction - Dell PowerVault MD3620i | Owner's Manual - Page 23
2 Planning: About Your Storage Array Overview The Dell PowerVault MD3600i Series storage array is designed for high availability, offering redundant access to data storage. It supports single and dual RAID controller configuration. The MD3600i Series storage array provides 1 GBase-T or 10 GBase-T - Dell PowerVault MD3620i | Owner's Manual - Page 24
Hardware Features Front-Panel Features and Indicators Figure 2-1. Front-Panel Features and Indicators-Dell PowerVault MD3600i 1 2 3 4 5 6 Figure 2-2. Front-Panel Features and Indicators-Dell PowerVault MD3620i 1 2 3 4 5 6 24 Planning: About Your Storage Array - Dell PowerVault MD3620i | Owner's Manual - Page 25
during normal operation. Blinks blue when a host server is identifying the enclosure or when the system identification button is pressed. Lights amber as enclosure boots or is reset. Blinks amber when the enclosure is either in a fault state or the hosts are not using the preferred path to a virtual - Dell PowerVault MD3620i | Owner's Manual - Page 26
function is not supported by the MD3600i Series storage arrays. The PowerVault MD3600i-Up to 12, 3.5-inch SAS hot-swappable hard drives. PowerVault MD3620i-Up to 24, 2.5-inch SAS hot-swappable hard drives. The function of this switch is not applicable to your storage array. However, if MD1200 Series - Dell PowerVault MD3620i | Owner's Manual - Page 27
Back-Panel Features and Indicators Figure 2-4. Back-Panel Features and Indicators-Dell PowerVault MD3600i Series Storage Array 1 2 3 4 1 600 W power supply/cooling fan module 3 RAID Controller Module 1 2 RAID Controller Module 0 4 600 W power supply/cooling fan module Planning: About Your - Dell PowerVault MD3620i | Owner's Manual - Page 28
Hard-Drive Indicator Patterns Figure 2-5. Hard Drive Indicators 1 2 1 hard-drive activity indicator (green) 2 hard-drive status indicator (green and amber) 28 Planning: About Your Storage Array - Dell PowerVault MD3620i | Owner's Manual - Page 29
host server • has been spun down for removal • is not supported for the RAID controller module or is not in the physical disk slot NOTE: s, and off 3 s) Power Supply and Cooling Fan Features The MD3600i Series storage array includes two integrated, hot-swappable power supply/cooling fan modules - Dell PowerVault MD3620i | Owner's Manual - Page 30
Connect the external power supply to this connector. 5 Power switches (2) The power switch controls the power supply output to the enclosure. 30 Planning: About Your Storage Array - Dell PowerVault MD3620i | Owner's Manual - Page 31
configurations can be utilized, in both single controller (simplex) and dual controller (duplex) modes, to connect the storage enclosure to hosts depending on specific redundancy needs. For information on cabling, see the MD3600i and MD3620i Series Storage Array's Deployment Guide. Planning: RAID - Dell PowerVault MD3620i | Owner's Manual - Page 32
MD3600i Series iSCSI RAID Controller Module 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 Item Component 1 SAS OUT port 2 iSCSI IN port 0 3 iSCSI IN port 1 4 Management 1000 Mbps Ethernet connection for out-of-band management of the enclosure. Dell support only. Lights green when all four links - Dell PowerVault MD3620i | Owner's Manual - Page 33
If the password reset function has successfully changed the password, this Password reset switch Activating this switch deletes the password. 15 MAC address label Provides MAC addresses of iSCSI host ports and the management port. 16 Management . 17 Management port activity LED Lights green - Dell PowerVault MD3620i | Owner's Manual - Page 34
installing the BBU, see "RAID Controller Module Backup Battery Unit" on page 222. NOTE: For virtual disks, the RAID controller firmware changes the data cache not necessary to shut down any MD1200 Series expansion enclosures attached to the storage array when thermal shutdown occurs. Temperature - Dell PowerVault MD3620i | Owner's Manual - Page 35
password is deleted. See Figure 3-1 to locate the password reset switch. The RAID controller module allows you to change the password. For more information about setting your password, see "Setting a Password mirrored data. By default, cache mirroring In duplex system configurations with write-back - Dell PowerVault MD3620i | Owner's Manual - Page 36
. Write-through cache is considered more robust than write-back cache, since a power failure is less likely to cause loss of data. The RAID controller automatically switches to write-through if either cache mirroring is disabled or the battery is missing or there is a fault condition. 36 Planning - Dell PowerVault MD3620i | Owner's Manual - Page 37
storage array concepts, which help in configuring and operating the Dell PowerVault MD3600i Series storage arrays. Physical Disks, Virtual Disks, and Disk Groups Physical disks in your storage array provide the physical storage disk group support the same RAID level. The storage array supports up to - Dell PowerVault MD3620i | Owner's Manual - Page 38
Physical Disks Only Dell supported 6.0-Gbps SAS physical disks are supported in the storage array. If the storage array detects unsupported physical disks, it marks the disk as unsupported and the physical disk becomes unavailable for all operations. NOTE: The MD3600i storage enclosure must contain - Dell PowerVault MD3620i | Owner's Manual - Page 39
Table 4-1. RAID Controller Physical Disk States (continued) Status Pending Failure Offline Identify Groups When configuring a storage array, you must: 1 Organize the physical disks into disk groups. 2 Create virtual disks within these disk groups. Planning: MD3600i Series Storage Array Terms and - Dell PowerVault MD3620i | Owner's Manual - Page 40
disk with a redundant RAID level contains an storage array forces the virtual disk to a Degraded state. The storage array can force a virtual disk to an Online state only when a sufficient number of physical disks are available to support the virtual disk. 40 Planning: MD3600i Series Storage - Dell PowerVault MD3620i | Owner's Manual - Page 41
supports reconstruction RAID 0 RAID 0 uses disk striping to provide high data throughput, especially for large files in an environment that requires no data redundancy. RAID 0 breaks the data down into segments and writes each segment to a separate physical disk. Planning: MD3600i Series Storage - Dell PowerVault MD3620i | Owner's Manual - Page 42
more) creates a RAID level 10 disk group and/or virtual disk. Because RAID levels 1 and 10 use disk mirroring, half of the capacity of the physical disks is utilized for mirroring. This leaves the remaining half of the physical disk capacity for 42 Planning: MD3600i Series Storage Array Terms and - Dell PowerVault MD3620i | Owner's Manual - Page 43
segment size or stripe element size specifies the size of data in a stripe written to a single disk. The storage array supports stripe element sizes of 8, 16, 32, 64, 128, 256, and 512 KBs. The default stripe element size is 128 KB. Stripe width, or depth, refers to the number of disks involved in - Dell PowerVault MD3620i | Owner's Manual - Page 44
failed physical disk is a serious problem, because the system does not have the redundancy to recover the data. Media Verification Another background task performed by the storage array is media verification of all configured physical disks in a disk group. The storage array uses the Read operation - Dell PowerVault MD3620i | Owner's Manual - Page 45
. MDSM provides information about RAID attributes to assist you in selecting the appropriate RAID level. You can perform a RAID level migration while the system is still running and without rebooting, which maintains data availability. Planning: MD3600i Series Storage Array Terms and Concepts 45 - Dell PowerVault MD3620i | Owner's Manual - Page 46
disk groups, virtual disks, and physical disks throughout the operation. The data and increased unused free space are dynamically redistributed across the disk group. RAID characteristics are also reapplied to the disk group as a whole. 46 Planning: MD3600i Series Storage Array Terms and Concepts - Dell PowerVault MD3620i | Owner's Manual - Page 47
other controller. RAID Background Operations Priority The storage array supports a common configurable priority for the following RAID operations: • Background initialization • Rebuild • Copy back • Virtual disk capacity expansion • Raid level migration Planning: MD3600i Series Storage Array Terms - Dell PowerVault MD3620i | Owner's Manual - Page 48
from one MD3600i array to another, the MD3600i array you migrate to, recognizes any data structures and/or metadata you had in place on the migrating MD3600i array. However, if you are migrating from any device other than a MD3600i Series storage 48 Planning: MD3600i Series Storage Array Terms - Dell PowerVault MD3620i | Owner's Manual - Page 49
disks that a storage array supports limits the scope storage array before starting migration from the next storage array. NOTE: If the drive modules are not moved as a set to the destination storage array, the newly relocated disk groups might not be accessible. Planning: MD3600i Series Storage - Dell PowerVault MD3620i | Owner's Manual - Page 50
configure host serverto-virtual disk mapping, consider these guidelines: • You can define one host server-to-virtual disk mapping for each virtual disk in the storage array. • Host server-to-virtual disk mappings are shared between RAID controller modules in the storage array. 50 Planning: MD3600i - Dell PowerVault MD3620i | Owner's Manual - Page 51
-The operating system running on the host server. Advanced Features The RAID enclosure supports several advanced features: • Virtual Disk Snapshots • Virtual Disk Copy supplied that contains instructions for enabling this functionality. Planning: MD3600i Series Storage Array Terms and Concepts 51 - Dell PowerVault MD3620i | Owner's Manual - Page 52
data for a particular snapshot virtual disk. The repository supports one snapshot only. You cannot select a snapshot repository Snapshot Virtual Disks Premium Feature in a Windows Clustered configuration, you must map the snapshot virtual disk to the MD3600i Series Storage Array Terms and Concepts - Dell PowerVault MD3620i | Owner's Manual - Page 53
For details on mapping the snapshot virtual disk to the secondary node, refer to the Dell PowerVault MD3600i and MD3620i Storage Arrays With Microsoft Windows Server Failover Clusters on support.dell.com/manuals. Virtual Disk Copy Virtual disk copy is a premium feature you can use to: • Back up data - Dell PowerVault MD3620i | Owner's Manual - Page 54
host server that provides management of the redundant data path between the host server and the storage array. For the multi-path software to correctly manage a redundant path, the configuration must have redundant iSCSI connections and cabling. 54 Planning: MD3600i Series Storage Array Terms and - Dell PowerVault MD3620i | Owner's Manual - Page 55
requests to the alternate path so that the storage array continues to operate without interruption. NOTE: Multi-path software is available on the MD3600i Series resource media. Preferred and Alternate Controllers and Paths A preferred controller is a RAID controller module designated as the owner of - Dell PowerVault MD3620i | Owner's Manual - Page 56
are configured. You RAID controller module are ignored until ownership changes. The basic assumption for the round-robin policy is that the data paths are equal. With mixed host support RAID controller module that owns the virtual disk. 56 Planning: MD3600i Series Storage Array Terms and Concepts - Dell PowerVault MD3620i | Owner's Manual - Page 57
select the appropriate storage array. 2 Open the Array Management Window (AMW) for the selected storage array. 3 In the AMW, select Storage Array Monitor Performance. 4 Click Settings. a Select the items that you want to monitor. You can monitor: Planning: MD3600i Series Storage Array Terms and - Dell PowerVault MD3620i | Owner's Manual - Page 58
Storage array totals NOTE: By default, all items are selected. b In Polling interval, select how often you want to update the performance statistics. NOTE: For an accurate elapsed time, do not use the Set RAID cells. 12 Click Save. 58 Planning: MD3600i Series Storage Array Terms and Concepts - Dell PowerVault MD3620i | Owner's Manual - Page 59
recorded throughput value from last start time Snapshot of IO's per second (IOP = Input/output per second or one completed I/O transaction) Maximum recorded IOP from last start time For more information, see the online help topics. Planning: MD3600i Series Storage Array Terms and Concepts 59 - Dell PowerVault MD3620i | Owner's Manual - Page 60
60 Planning: MD3600i Series Storage Array Terms and Concepts - Dell PowerVault MD3620i | Owner's Manual - Page 61
perform the configuration and management tasks described in this document. You can access online help by clicking Help located at the top right corner of MDSM interface. See the MD3600i and MD3620i Storage Array's Deployment Guide for information on installing the MDSM. NOTE: MDSM supports MD3000i - Dell PowerVault MD3620i | Owner's Manual - Page 62
tasks that guide you through adding storage arrays and configuring alerts. The Devices tab has a Tree view on the left side of the window that shows discovered storage arrays, unidentified storage arrays, and the status conditions for the storage arrays. Discovered storage arrays are managed by MDSM - Dell PowerVault MD3620i | Owner's Manual - Page 63
arrays concurrently. • Obtain information about the firmware inventory including the version of the RAID controller modules, physical disks, and the enclosure management modules (EMMs) in the storage array. Inheriting the System Settings Use the Inherit System Settings option to import the operating - Dell PowerVault MD3620i | Owner's Manual - Page 64
setup tasks to configure the storage array. • Support tab-You can complete common support tasks like downloading RAID controller module firmware, viewing the online help, and so on. In the AMW, you can: • Provide storage array options. For example, renaming a storage array, changing a password, or - Dell PowerVault MD3620i | Owner's Manual - Page 65
array. This limit does not apply to systems that manage the storage array through the in-band management method. When you use out-of-band management, you must set the network configuration for each RAID controller module's management Ethernet port. This includes the Internet Protocol (IP) address - Dell PowerVault MD3620i | Owner's Manual - Page 66
Matrix at support.dell.com/manuals. For more information, see the PowerVault Modular Disk Storage Manager online help topics. Access Virtual Disk Each RAID controller module in an MD3600i Series storage array maintains a special virtual disk, called the access virtual disk. The host-agent software - Dell PowerVault MD3620i | Owner's Manual - Page 67
to the specified storage array. To add a storage array manually: 1 Select Edit Add Storage Array. 2 Select the relevant management method: • Out-of-band management-Enter a host name or an IP address for the RAID controller Modules in the storage array. Configuration: About Your Storage Array 67 - Dell PowerVault MD3620i | Owner's Manual - Page 68
on the host server and the storage array. For more information, see "Configuration: Using iSCSI" on page 83. NOTE: The host agent must be restarted before in-band management communication can be established. See "Starting or Restarting the Host Context Agent Software" on page 261. 3 Click Add. 4 Use - Dell PowerVault MD3620i | Owner's Manual - Page 69
-Create disk groups, virtual disks, and hot spare physical disks by using the Automatic configuration method or the Manual configuration method. For more information, see the PowerVault Modular Disk Storage Manager online help topics. • Map virtual disks-Map virtual disks to hosts or host groups - Dell PowerVault MD3620i | Owner's Manual - Page 70
operation do not stop blinking, select Stop All Indications to stop the process manually. To locate the storage array: 1 Select the relevant storage array and: • In the EMW, right-click the appropriate storage array, and select Blink Storage Array. • In the AMW, select the Setup tab, click Blink - Dell PowerVault MD3620i | Owner's Manual - Page 71
for that storage array. See "Array Management Window" on page 63. The AMW for the selected storage array is displayed. 2 In the AMW, perform one of these actions: • Select the storage array in the Logical pane, and then select Storage Array Set Password. Configuration: About Your Storage Array 71 - Dell PowerVault MD3620i | Owner's Manual - Page 72
NOTE: You are not prompted for a password when you attempt to change the storage array configuration in the current management session. Password Guidelines Follow these guidelines when you create a password: • Use secure passwords for your storage array. A password should be easy for you to remember - Dell PowerVault MD3620i | Owner's Manual - Page 73
Type the 60-character comment. 4 Click OK. This option updates the comment in the table view and saves it in your local storage management station file system. The comment does not appear to administrators who are using other storage management stations. Configuration: About Your Storage Array 73 - Dell PowerVault MD3620i | Owner's Manual - Page 74
Feature Key File dialog appears. 3 Navigate to the relevant folder, select the appropriate key file, and click OK. 4 Click Close. For more information, see the PowerVault Modular Disk Storage Manager online help topics. 74 Configuration: About Your Storage Array - Dell PowerVault MD3620i | Owner's Manual - Page 75
PowerVault Modular Disk Storage Manager online help topics. Changing the Cache Settings on the Storage Array To change the storage array cache settings: 1 In the AMW, select Storage Password dialog, type the current password for the storage array, and click OK. Configuration: About Your Storage - Dell PowerVault MD3620i | Owner's Manual - Page 76
MD1200 series expansion enclosure is connected to an MD3600i Series storage RAID controller modules and the expansion enclosures in the Physical pane to match the hardware configuration in your storage array. The Physical pane that initially appears is a default view that may not match your storage - Dell PowerVault MD3620i | Owner's Manual - Page 77
can be sent as e-mail messages or as Simple Network Management Protocol (SNMP) trap messages. You can configure alert notifications either for all the storage arrays or a single storage array. To configure alert notifications for all storage arrays: 1 In the EMW, select the Setup tab. 2 Select - Dell PowerVault MD3620i | Owner's Manual - Page 78
These results occur, depending on your selection: • If you selected all storage arrays, the Configure Alerts dialog appears. • If you selected an individual storage array, the Select Storage Array dialog appears. Select the storage array for which you want to receive e-mail alerts and click OK. The - Dell PowerVault MD3620i | Owner's Manual - Page 79
the e-mail address in Email address or select the e-mail address in the Configured email addresses area, and click Test. A test e-mail is sent to type is the default. • Event + Profile-The e-mail alert contains the event information and the storage array profile. • Event + Support-The e-mail alert - Dell PowerVault MD3620i | Owner's Manual - Page 80
information on the Dell Management Console. • Replacing an SNMP address-Select the SNMP address in the Configured SNMP addresses area, type the replacement community name in Community name and the trap destination in Trap destination, and click Replace. 80 Configuration: About Your Storage Array - Dell PowerVault MD3620i | Owner's Manual - Page 81
SNMP Community Name is determined by the system administrator and configured within the a management application, such as the Dell Management Console. More information about the Dell Management Console is available at dell.com. • You can configure multiple SNMP addresses before you click OK. Battery - Dell PowerVault MD3620i | Owner's Manual - Page 82
Array Synchronize RAID Controller Module Clocks. 2 If a password is set, in the Enter Password dialog, type the current password for the storage array, and click Synchronize. The RAID controller module clocks are synchronized with the storage management station. 82 Configuration: About Your - Dell PowerVault MD3620i | Owner's Manual - Page 83
7 Configuration: Using iSCSI Changing the iSCSI Target Authentication To change the iSCSI target authentication: 1 In the AMW, select the Setup tab. 2 Select Manage iSCSI Settings. The Manage iSCSI Settings window is displayed and by default, the Target Authentication tab is selected. To change - Dell PowerVault MD3620i | Owner's Manual - Page 84
PowerVault Modular Disk Storage Manager online help topics. Creating CHAP Secrets When you set up an authentication method, you can choose to create a CHAP secret. The CHAP secret is a password that is recognized by the initiator and the target. If you are using mutual authentication to configure - Dell PowerVault MD3620i | Owner's Manual - Page 85
CHAP secret is set on the host using the iSCSI initiator configuration program provided with the host operating system. If you are CHAP Secrets The CHAP secret must be between 12 and 57 characters. The CHAP secret supports characters with ASCII values of 32 to 126 decimal. See Table 7-1 for a list - Dell PowerVault MD3620i | Owner's Manual - Page 86
with SP 1) does not support using target alias. Changing the Manage iSCSI Settings window is displayed. 3 Select the Target Discovery tab. 4 Select Use iSNS to activate iSCSI target discovery. To activate iSCSI target discovery, you can use one of the following methods: • Select Obtain configuration - Dell PowerVault MD3620i | Owner's Manual - Page 87
OK. Configuring the iSCSI Host Ports The default method for configuring the Configure iSCSI Host Ports. The Configure iSCSI Host Ports window is displayed. 3 In the iSCSI host port list, select an appropriate RAID controller module and an iSCSI host port. The connection status between the storage - Dell PowerVault MD3620i | Owner's Manual - Page 88
and select the IPv6 Settings tab. 7 To configure the IPv4 and IPv6 settings: • To automatically configure the settings, select Obtain configuration automatically. This option is selected by default. • To manually configure the settings, select Specify configuration. NOTE: If you select the automatic - Dell PowerVault MD3620i | Owner's Manual - Page 89
1 is the default VLAN. NOTE: For more information on creating and configuring a VLAN with MD Support Manager, in the AMW, click the Support tab, then click reserved for network-critical traffic (do not use with the MD3600i). The default Transmission Control Protocol (TCP) listening port is 3260. The - Dell PowerVault MD3620i | Owner's Manual - Page 90
, and the data on the storage array is no longer available. NOTE: When a session is manually terminated using the MDSM, the iSCSI initiator software automatically attempts to re-establish the terminated connection to the storage array. This may cause an error message. 90 Configuration: Using iSCSI - Dell PowerVault MD3620i | Owner's Manual - Page 91
and set baseline statistics: 1 In the AMW toolbar, select Storage Array iSCSI Statistics. The View iSCSI Statistics window is displayed are all the statistics that have been gathered since the RAID controller modules were started. • Baseline statistics-To view the . Configuration: Using iSCSI 91 - Dell PowerVault MD3620i | Owner's Manual - Page 92
and then click Mappings Move. 3 Select a host group to move the host to and click OK. Manually delete the host and the host group 1 Click the Mappings tab. 2 Select the item that you want to about Host, Host Groups, and Host Topology, refer to "Configuration: About Your Host" on page 95. 92 - Dell PowerVault MD3620i | Owner's Manual - Page 93
Management Console, see dell.com. • Replicate the alert settings from a particular managed device by copying the emwdata.bin file to every storage management station from which you want to receive alerts. Each managed device shows a check mark that indicates that alerts have been set. Configuration - Dell PowerVault MD3620i | Owner's Manual - Page 94
by default on a management station that runs 24 hours a day. Windows To enable or disable the event monitor: 1 Click Start Settings Control Panel Administrative Tools Services. or Click Start Administrative Tools Services. 2 From the list of services, select Modular Disk Storage Manager Event - Dell PowerVault MD3620i | Owner's Manual - Page 95
: About Your Host Configuring Host Access Dell PowerVault Modular Disk Storage Manager (MDSM) software is comprised of multiple modules. One of these modules is the Host Context Agent, which is installed as part of the MDSM installation and runs - Dell PowerVault MD3620i | Owner's Manual - Page 96
different host. • Replace a host port identifier with a new host port identifier. • Manually activate an inactive host port so that the port can gain access to host specific or more information, see the PowerVault Modular Disk Storage Manager online help topics. 96 Configuration: About Your Host - Dell PowerVault MD3620i | Owner's Manual - Page 97
Define Host. • Select the Setup tab, and click Manually Define Hosts. • Select the Mappings tab. Right-click the root node (storage array name), Default Group node, or Host Group node in the Topology pane 6 Click Next. The Specify Host Type window is displayed. Configuration: About Your Host 97 - Dell PowerVault MD3620i | Owner's Manual - Page 98
the host node, and select Remove from the pop-up menu. The Remove confirmation dialog appears. 3 Type yes. 4 Click OK. For more information, see the PowerVault Modular Disk Storage Manager online help topics. 98 Configuration: About Your Host - Dell PowerVault MD3620i | Owner's Manual - Page 99
). In addition, all hosts in the host group must have special software, such as clustering software, to manage virtual disk sharing and accessibility. If a host is part of a cluster, every host in the cluster must be connected to the storage array, and every host in the cluster must be added to the - Dell PowerVault MD3620i | Owner's Manual - Page 100
Host From a Host Group You can remove a host from the Topology pane on the Mappings tab of the Array Management Window. For more information, see "Removing a Host Group" on page 101. Moving a Host to a Different assigned to the host group from which it was moved. 100 Configuration: About Your Host - Dell PowerVault MD3620i | Owner's Manual - Page 101
PowerVault Modular Disk Storage Manager online help topics. Host Topology Host topology is the organization of hosts, host groups, and host interfaces configured for a storage automatically detects these changes for any host running the host agent software. Configuration: About Your Host 101 - Dell PowerVault MD3620i | Owner's Manual - Page 102
Administrative Tools Services. or Click Start Administrative Tools Services. 2 From the list of services, select Modular Disk Storage Manager Agent. 3 If the Host Context Agent is running, click Action Stop, then wait approximately 5 seconds. 4 Click Action Start. 102 Configuration: About - Dell PowerVault MD3620i | Owner's Manual - Page 103
to the array when configuring host access to the storage array. NOTE: See the Deployment Guide for more information on cabling configurations. NOTE: For more information on configuring hosts see "Configuration: About Your Host" on page 95. If a component such as a RAID controller module or a cable - Dell PowerVault MD3620i | Owner's Manual - Page 104
hosts from the list of hosts that are associated with the storage array. 3 If you are adding a new host port identifier, go to step 4. If you are managing an existing host port identifier, go to step 8. 4 Click Add. The Add Host Port Identifier dialog appears. 104 Configuration: About Your Host - Dell PowerVault MD3620i | Owner's Manual - Page 105
host or host group. 8 Select the host port identifier that you would like to manage from the list of host port identifiers in the Host port identifier information area. 9 Perform more information, see the PowerVault Modular Disk Storage Manager online help topics. Configuration: About Your Host 105 - Dell PowerVault MD3620i | Owner's Manual - Page 106
106 Configuration: About Your Host - Dell PowerVault MD3620i | Owner's Manual - Page 107
. The maximum number of physical disks supported in a disk group is 30. The hosts attached to the storage array read and write data to the virtual disks. NOTE: Before you can create virtual disks, you must first organize the physical disks into disk groups and configure host access. Then you can - Dell PowerVault MD3620i | Owner's Manual - Page 108
can create disk groups either using Automatic configuration or Manual configuration. To create disk groups using automatic configuration: 1 To start the Create Disk Group Wizard, perform one of these actions: • To create a disk group from unconfigured capacity in the storage array-On the Logical tab - Dell PowerVault MD3620i | Owner's Manual - Page 109
disk group capacity, and click Finish. 9 For manual configuration, the Manual Physical Disk Selection window is displayed. 10 Select the appropriate RAID level in Select RAID level. You can select RAID levels 0, 1/10, 6, and 5. Depending on your RAID level selection, the physical disks available for - Dell PowerVault MD3620i | Owner's Manual - Page 110
create a virtual disk: • Many hosts can have 256 logical unit numbers (LUNs) mapped per storage partition, but the number varies per operating system. • After you create one or more virtual disks you create disk groups before creating virtual disks. 110 Configuration: Disk Groups and Virtual Disks - Dell PowerVault MD3620i | Owner's Manual - Page 111
from the pop-up menu. • To create a virtual disk from unassigned physical disks in the storage array-On the Physical tab, select one or more unassigned physical disks of the same physical disk name, enter a virtual disk name of up to 30 characters. Configuration: Disk Groups and Virtual Disks 111 - Dell PowerVault MD3620i | Owner's Manual - Page 112
size. 8 Select the appropriate Preferred RAID controller module ownership. 9 Click Finish or multiple virtual disks on a storage array. Guidelines to change the disk is selected, the modification priority defaults to the lowest priority. The current Configuration: Disk Groups and Virtual Disks - Dell PowerVault MD3620i | Owner's Manual - Page 113
storage RAID controller module. After the condition has cleared, the cache properties selected in the dialog become active. If the selected cache properties do not become active, contact your Technical Support representative. • If you select more than one virtual disk, the cache settings default - Dell PowerVault MD3620i | Owner's Manual - Page 114
off temporarily by the RAID controller module until the default. NOTE: Cache is automatically flushed after the Enable write caching check box is disabled. 5 Click OK. A message prompts you to confirm the change in the virtual disk modification priority. 6 Click Yes. 7 Click OK. 114 Configuration - Dell PowerVault MD3620i | Owner's Manual - Page 115
group • The number of physical disk ports • The processing power of the storage array RAID controller modules If you want this operation to complete faster, you can change the A message prompts you to confirm the selected segment size. 4 Click Yes. Configuration: Disk Groups and Virtual Disks 115 - Dell PowerVault MD3620i | Owner's Manual - Page 116
is used by the system to indicate an applicable default virtual disk segment size and dynamic cache read prefetch setting. Refer to the PowerVault Modular Disk Storage Manager online help topics for information on the Automatic Configuration Wizard. NOTE: The dynamic cache read prefetch setting can - Dell PowerVault MD3620i | Owner's Manual - Page 117
a single storage array. In this release of MDSM, the following media types are supported: • Hard reads. For more information, see the PowerVault Modular Disk Storage Manager online help topics. You can create RAID controller module to read or write the data. Configuration: Disk Groups and Virtual - Dell PowerVault MD3620i | Owner's Manual - Page 118
is provided by a RAID controller module. You can view the self encrypting disk status of any physical disk in the storage array from the Physical in the Storage Array menu. The Physical Disk Security menu has the following options: • Create Security Key • Change Security Key 118 Configuration: Disk - Dell PowerVault MD3620i | Owner's Manual - Page 119
• The disk group is in an Optimal state. • A security key is set up for the storage array. NOTE: The Secure Physical Disks option is inactive if these conditions are not true. The Secure the Secure Erase option appears in the Physical Disk menu. Configuration: Disk Groups and Virtual Disks 119 - Dell PowerVault MD3620i | Owner's Manual - Page 120
time. • Click Yes to set or change the storage array password. The Change Password dialog appears. Go to step 4. • Click No to continue without setting or changing the storage array password. The Create Security Key dialog appears. Go to step 6. 120 Configuration: Disk Groups and Virtual Disks - Dell PowerVault MD3620i | Owner's Manual - Page 121
storage array password. If you are creating the storage array password for the first time, leave Current password blank. Follow these guidelines for cryptographic strength when you create the storage array password: • The password the default path Configuration: Disk Groups and Virtual Disks 121 - Dell PowerVault MD3620i | Owner's Manual - Page 122
re-applied. They can be unlocked only by a RAID controller module that supplies the correct key during physical disk storage medium for backup in case of system failure or for transfer to another storage array. A pass phrase that you provide encrypts and decrypts the security key 122 Configuration - Dell PowerVault MD3620i | Owner's Manual - Page 123
All virtual disks in the storage array are in Optimal status. • In storage arrays with two RAID controller modules, both are present symbols. Additional characters is generated automatically. 4 Edit the default path by adding a file name to the end of Configuration: Disk Groups and Virtual Disks 123 - Dell PowerVault MD3620i | Owner's Manual - Page 124
In the AMW toolbar, select Storage ArrayPhysical Disk Security Save Security Key File. The Save Security Key File - Enter Pass Phrase window is displayed. 2 Edit the default path by adding a file > @ +). The pass phrase that you enter is masked. 124 Configuration: Disk Groups and Virtual Disks - Dell PowerVault MD3620i | Owner's Manual - Page 125
key, the RAID controller module firmware encrypts (or storage array. You must provide the pass phrase that was used to encrypt the security key file to extract the security key from this file. For more information, see the PowerVault Modular Disk Storage Manager online help topics. Configuration - Dell PowerVault MD3620i | Owner's Manual - Page 126
storage array. Refer to the PowerVault Modular Disk Storage Manager online help topics for more information on the secure erase procedure. Configuring Hot Spare Physical Disks Guidelines to configure displayed by the MDSM application to correct any problem before trying to unassign the physical disk. - Dell PowerVault MD3620i | Owner's Manual - Page 127
the Recovery Guru procedures to correct the problem before you try to unassign the physical physical disks. • Manually assign individual physical disks Review the information about the hot spare coverage in the Details area. 7 Click Assign. The Assign Hot Spare window is displayed. Configuration - Dell PowerVault MD3620i | Owner's Manual - Page 128
10 Review the storage array. Global Hot Spares The MD3600i Series supports global hot spares. A global hot spare can replace a failed physical disk in any virtual disk with a redundant RAID level as long as the capacity of the hot spare is equal to or larger than the size of the configured - Dell PowerVault MD3620i | Owner's Manual - Page 129
disk. This function is called copy back. By default, the RAID controller module automatically configures the number and type of hot spares based on there are secure disk groups and security capable disk groups in the storage array, the hot spare physical disk must match the security capability of - Dell PowerVault MD3620i | Owner's Manual - Page 130
be achieved if your storage array has less than three expansion enclosures. Because a RAID level 6requires a minimum of five physical disks, enclosure loss protections cannot be achieved if your storage array has less than five expansion enclosures. 130 Configuration: Disk Groups and Virtual - Dell PowerVault MD3620i | Owner's Manual - Page 131
0 RAID level 0 does not have consistency, you cannot achieve enclosure loss protection. Host-to-Virtual Disk Mapping After you create virtual disks, you must map them to the host(s) connected to the array. Guidelines to configure host-to-virtual disk mapping: • Each virtual disk in the storage - Dell PowerVault MD3620i | Owner's Manual - Page 132
: • An access virtual disk mapping is not required for an out-of-band storage array. If your storage array is managed using an out-of-band connection, and an access virtual disk mapping is assigned to the Default Group, an access virtual disk mapping is assigned to every host created from the - Dell PowerVault MD3620i | Owner's Manual - Page 133
group or host, select the appropriate host group or host. All defined hosts, host groups, and the default group appear in the list. NOTE: When configuring an iSCSI storage array, including the MD3600i or MD3620i, if a host or a host group is selected that does not have a SAS host bus adapter (SAS - Dell PowerVault MD3620i | Owner's Manual - Page 134
. By default, the drop password is set on the storage array, the Enter Password dialog appears. Type the current password for the storage array, and click OK. 7 If configuring configure this storage array before you start I/O operations and after the virtual disk is created. You can change the RAID - Dell PowerVault MD3620i | Owner's Manual - Page 135
ownership of a standard virtual disk or a snapshot repository virtual disk. You cannot directly change the RAID controller module ownership of a snapshot virtual disk because the snapshot virtual disk inherits the RAID controller module owner of its Configuration: Disk Groups and Virtual Disks 135 - Dell PowerVault MD3620i | Owner's Manual - Page 136
at the disk group level causes every virtual disk in that disk group to transfer to the other RAID controller module and use the new I/O path. If you do not want to set every virtual disk new path. This action usually takes less than 5 minutes. 136 Configuration: Disk Groups and Virtual Disks - Dell PowerVault MD3620i | Owner's Manual - Page 137
the selection. The RAID level operation begins. Restricted Mappings Many hosts are able to map up to 256 LUNs (0 to 255) per storage partition. However, the maximum number of mappings differs because of operating system variables, failover driver issues, and potential data problems. The hosts listed - Dell PowerVault MD3620i | Owner's Manual - Page 138
of LUNs allowed in the Default Group for any host is restricted to the limit imposed by the restricted host type. If a particular host with a nonrestricted host type becomes part of a specific storage partition, you are able to change the mapping to a higher LUN. 138 Configuration: Disk Groups and - Dell PowerVault MD3620i | Owner's Manual - Page 139
completed or is stopped, ownership of the target virtual disk is restored to its preferred RAID controller module. If ownership of the source virtual disk is changed during the virtual disk copy, Ownership/Preferred Path from the pop-up menu. Configuration: Disk Groups and Virtual Disks 139 - Dell PowerVault MD3620i | Owner's Manual - Page 140
at the disk group level causes every virtual disk in that disk group to transfer to the other RAID controller module and use the new I/O path. If you do not want to set every virtual disk new path. This action usually takes less than 5 minutes. 140 Configuration: Disk Groups and Virtual Disks - Dell PowerVault MD3620i | Owner's Manual - Page 141
in mind when you change the RAID level of a disk group: • storage partition. One storage partition is sufficient if: • Only one attached host accesses all of the virtual disks in the storage array. • All attached hosts share access to all of the virtual disks in the storage array. Configuration - Dell PowerVault MD3620i | Owner's Manual - Page 142
When you choose this type of configuration, all of the hosts must have the same operating system and special software (such as clustering software) to manage virtual disk sharing and accessibility. More than one storage partition is required if: • Specific hosts must access specific virtual disks in - Dell PowerVault MD3620i | Owner's Manual - Page 143
Default Group, host groups, hosts, and host ports shown as nodes in the Topology pane of the Mappings tab in the AMW. For more information, see "Using the Mappings Tab" on page 96. If a storage RAID level of the disk group is RAID Level 5, or RAID Configuration: Disk Groups and Virtual Disks 143 - Dell PowerVault MD3620i | Owner's Manual - Page 144
hosts to add free capacity to a disk group. See the CLI Guide for more information. After the capacity expansion is completed, additional free " on page 143. For more information, see the PowerVault Modular Disk Storage Manager online help topics. 144 Configuration: Disk Groups and Virtual Disks - Dell PowerVault MD3620i | Owner's Manual - Page 145
virtual disks and snapshot repository virtual disks • Remote mirror pairs • Mirror repositories Exporting a Disk Group On the source storage array: 1 Save the storage array configuration. 2 Stop all I/O, and unmount or disconnect the file systems on the virtual disks in the disk group. 3 Back - Dell PowerVault MD3620i | Owner's Manual - Page 146
physical disk slots. 2 Verify that the target storage array supports the physical disks that you import. 3 Verify that the target storage array can support the new virtual disks. 4 Verify that the latest version of firmware is installed on the RAID controller module. Import Disk Group The import - Dell PowerVault MD3620i | Owner's Manual - Page 147
Snapshot virtual disks and snapshot repository virtual disks Storage Array Media Scan The media scan is a the event log. For virtual disks without redundancy protection (RAID 1, RAID 5, and RAID 6 virtual disks), the error is not corrected but Configuration: Disk Groups and Virtual Disks 147 - Dell PowerVault MD3620i | Owner's Manual - Page 148
the PowerVault Modular Disk Storage Manager online RAID Level 6 virtual disk and checks the consistency information for each block. A consistency check compares data blocks on RAID Level 1 mirrored physical disks. RAID Level 0 virtual disks have no data consistency. 8 Click OK. 148 Configuration - Dell PowerVault MD3620i | Owner's Manual - Page 149
Change Media Scan Settings window is displayed. 3 Select Suspend media scan. NOTE: This applies to all the virtual disks on the disk group. 4 Click OK. Configuration: Disk Groups and Virtual Disks 149 - Dell PowerVault MD3620i | Owner's Manual - Page 150
150 Configuration: Disk Groups and Virtual Disks - Dell PowerVault MD3620i | Owner's Manual - Page 151
11 Configuration: Premium Feature- Snapshot Virtual Disks NOTE: If you ordered this feature, you received a Premium Feature Activation card shipped in the same box as your Dell PowerVault MD storage array. Follow the directions on the card to obtain a key file and to enable the feature. NOTE: The - Dell PowerVault MD3620i | Owner's Manual - Page 152
a snapshot does not affect data on the source virtual disk. NOTE: The following host preparation sections also apply when using the snapshot feature through the CLI interface. 152 Configuration: Premium Feature-Snapshot Virtual Disks - Dell PowerVault MD3620i | Owner's Manual - Page 153
snapshot repository virtual disk in another disk group or you can use unconfigured capacity on the storage array to create a new disk group. About the Simple Path Using the simple path -to-Virtual Disk Mapping-The default setting is Map now. Configuration: Premium Feature-Snapshot Virtual Disks 153 - Dell PowerVault MD3620i | Owner's Manual - Page 154
Major Event Log (MEL). The default snapshot repository full percentage level Premium Feature in a Microsoft Windows clustered configuration, you must first map the snapshot Dell PowerVault MD3600i and MD3620i Storage Arrays With Microsoft Windows Server Failover Clusters on support.dell.com/manuals - Dell PowerVault MD3620i | Owner's Manual - Page 155
. 8 Click OK. After creating one or more snapshot virtual disks, mount the source virtual disk, and restart the host application using that source virtual disk. Configuration: Premium Feature-Snapshot Virtual Disks 155 - Dell PowerVault MD3620i | Owner's Manual - Page 156
conflict depends on the host operating system and any virtual disk manager software in use. 10 To register the snapshot virtual disk with the host operating system, run the host-based hot_add utility. 11 To associate the mapping between the storage array name and the virtual disk name, run the host - Dell PowerVault MD3620i | Owner's Manual - Page 157
or host group now or to map the snapshot virtual disk later. The default setting is Map later. Preparing Host Servers to Create the Snapshot Using the the Dell PowerVault MD3600i and MD3620i Storage Arrays With Microsoft Windows Server Failover Clusters on support.dell.com/manuals. Configuration: - Dell PowerVault MD3620i | Owner's Manual - Page 158
of the source virtual disk, the Create Snapshot Virtual Disks feature defaults to the advanced path (see "Creating a Snapshot Virtual Disk group or you can use unconfigured capacity on the storage array to create a new disk group. NOTE: You can Configuration: Premium Feature-Snapshot Virtual Disks - Dell PowerVault MD3620i | Owner's Manual - Page 159
Groups & Virtual Disks. 4 Follow any additional instructions for your operating system. Failure to follow these additional instructions can create unusable snapshot virtual disks. NOTE: If disk-to-host mappings to the snapshot virtual disk. Configuration: Premium Feature-Snapshot Virtual Disks 159 - Dell PowerVault MD3620i | Owner's Manual - Page 160
Virtual Disk Parameters window is displayed. 8 In the Snapshot virtual disk parameters area, select the relevant mapping option, you can select: • Automatic • Map later with Storage Partition 160 Configuration: Premium Feature-Snapshot Virtual Disks - Dell PowerVault MD3620i | Owner's Manual - Page 161
hot_add utility. 15 To associate the mapping between the storage array name and the virtual disk name, run the is useful when naming virtual disks: By default, the snapshot name is shown in the relative to the source virtual disk. The default name for the associated snapshot repository virtual disk - Dell PowerVault MD3620i | Owner's Manual - Page 162
name truncated enough to add the sequence string. For example, for Host Software Engineering Group GR-1, the default snapshot name is Host Software Engineering GR1, and the default repository name would be Host Software Engineering GR-R1. 162 Configuration: Premium Feature-Snapshot Virtual Disks - Dell PowerVault MD3620i | Owner's Manual - Page 163
this option when no free capacity exists on the disk group. You cannot increase the storage capacity of a snapshot repository virtual disk if the snapshot repository virtual disk has any one snapshot repository virtual disk appear. If free Configuration: Premium Feature-Snapshot Virtual Disks 163 - Dell PowerVault MD3620i | Owner's Manual - Page 164
another expansion enclosure and additional physical disks. Use the information in the initial setup guides for your RAID controller module and your expansion enclosure. Go to step 9. NOTE: The physical disks 8 Click Add Physical Disks. 164 Configuration: Premium Feature-Snapshot Virtual Disks - Dell PowerVault MD3620i | Owner's Manual - Page 165
repository virtual disk change to assigned physical disks. The new assigned physical disks are associated with the disk group of the snapshot repository virtual disk. Configuration: Premium Feature-Snapshot Virtual Disks 165 - Dell PowerVault MD3620i | Owner's Manual - Page 166
for your operating system. NOTE: Failing to follow these additional instructions could create unusable snapshot virtual disks. For more information, see the PowerVault Modular Disk Storage Manager online help topics. • To use this option, the snapshot virtual disk must be either in an Optimal - Dell PowerVault MD3620i | Owner's Manual - Page 167
snapshot repository virtual disk is also removed. Refer to the PowerVault Modular Disk Storage Manager online help topics for more information on removing a snapshot virtual For more information, see "SMrepassist Utility" on page 257. Configuration: Premium Feature-Snapshot Virtual Disks 167 - Dell PowerVault MD3620i | Owner's Manual - Page 168
5 Follow any additional instructions for your operating system. Failure to follow these additional instructions can create unusable snapshot a snapshot repository virtual disk uses the previously configured snapshot name and parameters. 168 Configuration: Premium Feature-Snapshot Virtual Disks - Dell PowerVault MD3620i | Owner's Manual - Page 169
feature, you received a Premium Feature Activation card that shipped in the same box as your Dell PowerVault MD storage array. Follow the directions on the card to obtain a key file and to enable copy while the virtual disk copy is in progress. Configuration: Premium Feature-Virtual Disk Copy 169 - Dell PowerVault MD3620i | Owner's Manual - Page 170
data to a virtual disk in a disk group that uses drives with larger capacity within the same storage array. Copying data for larger access capacity enables you to move data to greater capacity physical disks (for to concurrently access data. 170 Configuration: Premium Feature-Virtual Disk Copy - Dell PowerVault MD3620i | Owner's Manual - Page 171
target virtual disk read/write permissions: 1 In the AMW, select Virtual Disk Copy Copy Manager. The Copy Manager window is displayed. 2 Select one or more copy pairs in the table. 3 Perform Target Virtual Disk Permissions Disable Read-Only. Configuration: Premium Feature-Virtual Disk Copy 171 - Dell PowerVault MD3620i | Owner's Manual - Page 172
virtual disk, the target virtual disk, and the storage array. • While a virtual disk copy has a following: - Capacity expansion - RAID-level migration - Segment sizing virtual disk copy feature through the CLI interface. Creating a Virtual Disk Copy Configuration: Premium Feature-Virtual Disk Copy - Dell PowerVault MD3620i | Owner's Manual - Page 173
request before it attempts to issue the read request. The storage array rejects the write request, and the read request might assists in creating a virtual disk copy • The Copy Manager, which monitors virtual disk copies after they have been Configuration: Premium Feature-Virtual Disk Copy 173 - Dell PowerVault MD3620i | Owner's Manual - Page 174
guides in the storage array that affects Array Management Window. RAID Controller Module Ownership During a virtual disk copy, the same RAID controller module must own both the source virtual disk and the target virtual disk. If both virtual disks do not have the same preferred RAID RAID RAID controller - Dell PowerVault MD3620i | Owner's Manual - Page 175
manually change RAID controller module ownership to the alternate RAID controller module to allow the virtual disk copy to complete under all of these conditions: • A virtual disk copy has a status of In Progress. • The preferred RAID can use the Copy Manager or the storage array profile. Copying the - Dell PowerVault MD3620i | Owner's Manual - Page 176
source virtual disk and the target virtual disk while the virtual disk copy has a status of In Progress or Pending. For more information, see the PowerVault Modular Disk Storage Manager online help topics. 176 Configuration: Premium Feature-Virtual Disk Copy - Dell PowerVault MD3620i | Owner's Manual - Page 177
the overall performance of the storage array: • I/O activity • Virtual disk RAID level • Virtual disk configuration-Number of drives in to a virtual disk copy operation. Setting Copy Priority You can use the Copy Manager to select the rate at which a virtual disk copy completes for a selected copy - Dell PowerVault MD3620i | Owner's Manual - Page 178
storage array. Keep these guidelines in mind when you stop a virtual disk copy: • To use this option, select only one copy pair in the Copy Manager. Copy Manager. The Copy Manager window is displayed. 2 Select the copy pair in the table. 3 Select Copy Stop. 4 Click Yes. 178 Configuration: Premium - Dell PowerVault MD3620i | Owner's Manual - Page 179
" on page 257. 3 Click the Summary tab, then click Disk Groups & Virtual Disks to ensure that the virtual disk is in Optimal or Disabled status. Configuration: Premium Feature-Virtual Disk Copy 179 - Dell PowerVault MD3620i | Owner's Manual - Page 180
instructions, you can find those instructions in your operating system documentation. Recopying the Virtual Disk You can use the Copy Manager Disk Copy Copy Manager. The Copy Manager window is displayed. 4 Select the copy pair in the table. 180 Configuration: Premium Feature-Virtual Disk Copy - Dell PowerVault MD3620i | Owner's Manual - Page 181
storage array might be affected. Removing Copy Pairs You can remove one or more virtual disk copies by using the Copy Manager Storage Array Profile dialogs. When you remove a virtual disk copy from the storage in the Copy Manager. Keep these Copy Copy Manager. The Copy Manager window is displayed - Dell PowerVault MD3620i | Owner's Manual - Page 182
182 Configuration: Premium Feature-Virtual Disk Copy - Dell PowerVault MD3620i | Owner's Manual - Page 183
the array restarts. To upgrade from a standard-performance-tier storage array to a highperformance-tier storage array, you enable the high-performance-tier premium feature, using the Dell PowerVault Modular Disk Storage Management (MDSM) software. When the high performance tier feature is enabled or - Dell PowerVault MD3620i | Owner's Manual - Page 184
184 Configuration: Premium Feature-Upgrading to High-Performance-Tier - Dell PowerVault MD3620i | Owner's Manual - Page 185
Linux host server by running the MD3600i Series resource media installation program on the server, and selecting either the Full or Host install option. For detailed installation procedures please refer to the Dell PowerVault MD3600i and MD3620i storage arrays Deployment Guide. Benefits of using DM - Dell PowerVault MD3620i | Owner's Manual - Page 186
Deployment Guide. For more information about step 4, see "Creating Virtual Disks" on page 110. 1 Install the host software from the MD3600i Series resource media- Insert the Resource media in the system to start the installation of Modular Disk Storage Manager (MDSM) and Modular Disk Configuration - Dell PowerVault MD3620i | Owner's Manual - Page 187
software: 1 Map the host server to the MD3600i Series storage array. 2 Create the Virtual Disks. 3 Map newly created arrays to your host server. NOTE: Any arrays configured with MDCU automatically get added to the list of Devices in the PowerVault Modular Disk Storage Manager Enterprise Management - Dell PowerVault MD3620i | Owner's Manual - Page 188
for one mapped virtual disk. mpath1 (3600a0b80005ab177000017544a8d6b92) dm-0 DELL, MD32xxi [size=5.0G][features=3 queue_if_no_path pg_init_retries 50][hwhandler=1 . It is located in the /dev/mapper directory. DELL is the vendor of the device. MD3600i is the model of the device. Sdc is the physical - Dell PowerVault MD3620i | Owner's Manual - Page 189
device created by device mapper. It is located in the /dev/mapper directory. DELL is the vendor of the device. MD3600i is the model of the device. Sdx is the physical path to the owning system documentation for additional information on fdisk. Configuration: Device Mapper Multipath for Linux 189 - Dell PowerVault MD3620i | Owner's Manual - Page 190
, all I/O operations, including file system creation, raw I/O and file system I/O, must be done through the partition node, and not through the multipathing device nodes. 190 Configuration: Device Mapper Multipath for Linux - Dell PowerVault MD3620i | Owner's Manual - Page 191
Device Mapper multipathing with an MD3600i Series storage array. 1 Unmount all Device Mapper multipath device nodes mounted on the server: # umount 2 Stop the Device Mapper multipath service: # /etc/init.d/multipathd stop Configuration: Device Mapper Multipath for - Dell PowerVault MD3620i | Owner's Manual - Page 192
boot operating storage array: # iscsiadm -m node --logout Important Information About Special Partitions When using Device Mapper with the MD3600i Series array, all physical disks are assigned a disk device node. This includes a special device type used for in-band management of the MD3600i Series - Dell PowerVault MD3620i | Owner's Manual - Page 193
Description Dell provided script. Forces a rescan of the host SCSI bus and aggregates multipathing devices as needed. For use when: • LUNs are dynamically mapped to the hosts. • New targets are added to the host. • Failback of the storage array is required. • For MD3600i Series arrays - Dell PowerVault MD3620i | Owner's Manual - Page 194
The Device Mapper Multipath service can be slow when the host system is experiencing heavy I/O. The problem is exacerbated if the /product ID, which can help identify this issue. Troubleshooting Question Answer How can I check if multipathd is 194 Configuration: Device Mapper Multipath for Linux - Dell PowerVault MD3620i | Owner's Manual - Page 195
level driver cannot autodetect devices coming back with the array. Run rescan_dm_devs to rescan host server SCSI bus and re-aggregate devices at multipathing layer. Configuration: Device Mapper Multipath for Linux 195 - Dell PowerVault MD3620i | Owner's Manual - Page 196
196 Configuration: Device Mapper Multipath for Linux - Dell PowerVault MD3620i | Owner's Manual - Page 197
them later depends on the type of RAID controller module in the storage array. NOTE: You can use the command line interface to download and activate the firmware to several storage arrays by using a script. Refer to the PowerVault Modular Disk Storage Manager online help topics for more information - Dell PowerVault MD3620i | Owner's Manual - Page 198
resides, click Select File next to the Selected RAID controller module firmware file text box. 4 In the File Selection area, select the file to download. By default, only the downloadable files that are compatible with the current storage array configuration appear. When you select a file in the - Dell PowerVault MD3620i | Owner's Manual - Page 199
that you either select an NVSRAM file or clear the Transfer NVSRAM file with RAID controller module firmware. - If the file selected is not valid or is not compatible with the current storage array configuration, the File Selection Error dialog appears. Click OK to close it, and choose a compatible - Dell PowerVault MD3620i | Owner's Manual - Page 200
later) check box. NOTE: If any of the selected storage arrays do not support downloading the files and activating the firmware or NVSRAM later, the Transfer files but don't activate them in the Status column of the Upgrade RAID Controller Module Firmware window. 200 Management: Firmware Downloads - Dell PowerVault MD3620i | Owner's Manual - Page 201
information, see the PowerVault Modular Disk Storage Manager online help topics. To download only NVSRAM firmware: 1 To download the NVSRAM firmware from: • EMW-Go to step 7. • AMW-Go to step 2. 2 Select Advanced Maintenance Download RAID Controller Module NVSRAM or Select the Support tab, and - Dell PowerVault MD3620i | Owner's Manual - Page 202
RAID Controller Module Firmware. • Select the Setup tab, and click Upgrade RAID Controller Module Firmware. The Upgrade RAID Controller Module Firmware window is displayed. The Storage array pane lists the storage indicate the version of the NVSRAM file. 202 Management: Firmware Downloads - Dell PowerVault MD3620i | Owner's Manual - Page 203
of application errors: • Downloading firmware incorrectly could result in damage to the physical disks or loss of data. Perform downloads only under the guidance of your Technical Support representative. • Stop all I/O to the storage array before the download. Management: Firmware Downloads 203 - Dell PowerVault MD3620i | Owner's Manual - Page 204
OK. The Download Physical Disk Firmware - Progress window displays the progress of physical disk firmware download. 7 After the firmware download is complete click Close. For more information, see the PowerVault Modular Disk Storage Manager online help topics. 204 Management: Firmware Downloads - Dell PowerVault MD3620i | Owner's Manual - Page 205
only under the guidance of your Technical Support representative. CAUTION: Risk of making expansion enclosure EMM unusable-Do not make any configuration changes to the storage array while downloading expansion enclosure EMM firmware. Doing so could cause the firmware download to fail and make the - Dell PowerVault MD3620i | Owner's Manual - Page 206
failure. SMART uses this information to report whether failure is imminent so that a physical disk can be replaced before failure occurs. The RAID controller monitors all attached drives and notifies users when a predicted failure is reported by a physical disk. 206 Management: Firmware Downloads - Dell PowerVault MD3620i | Owner's Manual - Page 207
encountered when trying to access a physical disk that is a member of a nonredundant disk group (RAID 0 or degraded RAID 1, RAID 5 or RAID 10). • An error is encountered on source disks during rebuild. NOTE: Data on an unreadable sector is no longer accessible. Management: Firmware Downloads 207 - Dell PowerVault MD3620i | Owner's Manual - Page 208
208 Management: Firmware Downloads - Dell PowerVault MD3620i | Owner's Manual - Page 209
16 Management: Installing Array Components Recommended Tools You may need the following items to perform the procedures in this section: • Key to the system keylock • #2 Phillips screwdriver • Wrist grounding strap Management: Installing Array Components 209 - Dell PowerVault MD3620i | Owner's Manual - Page 210
the bezel onto the chassis. 2 Fit the free end of the bezel onto the system. 3 Secure the bezel with the keylock. See Figure 16-1. 210 Management: Installing Array Components - Dell PowerVault MD3620i | Owner's Manual - Page 211
cl 1.2.7.3 of IEC 60950-1:2005. Depending on your configuration, your array either supports up to 24, 2.5inch SAS hard drives or PowerVault MD3600i and Figure 16-3 for PowerVault MD3620i. Figure 16-2. Removing and Installing a 3.5-Inch Hard-Drive Blank 1 2 1 drive blank 2 release tab Management - Dell PowerVault MD3620i | Owner's Manual - Page 212
only perform troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions that came - Dell PowerVault MD3620i | Owner's Manual - Page 213
2 From the Modular Disk Storage Manager (MDSM) software, prepare the drive for removal. Wait until the hard-drive indicators on the drive on page 210. Figure 16-4. Removing and Installing a Hard Drive 1 2 1 release button 2 hard-drive carrier handle Management: Installing Array Components 213 - Dell PowerVault MD3620i | Owner's Manual - Page 214
or telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions that came with the product. CAUTION: Use only hard drives that have been tested and approved for use with the MD3600i Series. CAUTION - Dell PowerVault MD3620i | Owner's Manual - Page 215
drive from the carrier. See Figure 16-5 for PowerVault MD3600i and Figure 16-6 for PowerVault MD3620i. Figure 16-5. Removing and Installing a Hard Drive Into a 3.5-Inch Drive Carrier 4 1 2 3 1 screws (4) 3 SAS screw hole 2 drive carrier 4 hard drive Management: Installing Array Components 215 - Dell PowerVault MD3620i | Owner's Manual - Page 216
Figure 16-6. Removing and Installing a Hard Drive Into a 2.5-Inch Drive Carrier 4 1 3 2 1 screws (4) 3 SAS screw hole 2 drive carrier 4 hard drive 216 Management: Installing Array Components - Dell PowerVault MD3620i | Owner's Manual - Page 217
. 3 Attach the four screws to secure the hard drive to the hard-drive carrier. RAID Controller Module An MD3600i Series storage array supports single as well as dual RAID controller configurations. If only one RAID controller module is installed in your array, it must be installed in slot 0. You - Dell PowerVault MD3620i | Owner's Manual - Page 218
2 1 release latch 2 RAID controller module blank Installing a RAID Controller Module Blank To install a RAID controller module blank, align the blank with the RAID controller module bay and insert the blank into the chassis until it clicks into place. 218 Management: Installing Array Components - Dell PowerVault MD3620i | Owner's Manual - Page 219
only perform troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions that came - Dell PowerVault MD3620i | Owner's Manual - Page 220
applicable, update the firmware for the RAID controller module. For information about the latest firmware, see support.dell.com. Opening the RAID Controller Module CAUTION: Many repairs may only be done by a certified service technician. You should only perform troubleshooting and simple repairs as - Dell PowerVault MD3620i | Owner's Manual - Page 221
only perform troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions that came - Dell PowerVault MD3620i | Owner's Manual - Page 222
only perform troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions that came - Dell PowerVault MD3620i | Owner's Manual - Page 223
only perform troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions that came - Dell PowerVault MD3620i | Owner's Manual - Page 224
only perform troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions that came - Dell PowerVault MD3620i | Owner's Manual - Page 225
Figure 16-11. Removing and Installing a Power Supply/Cooling Fan Module 1 1 release tab 3 power supply handle 2 3 2 power supply Management: Installing Array Components 225 - Dell PowerVault MD3620i | Owner's Manual - Page 226
only perform troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions that came - Dell PowerVault MD3620i | Owner's Manual - Page 227
the array in PowerVault MD3600i. See Figure 16-13. - Pulling the release pin toward the front of the array in PowerVault MD3620i. See Figure 16-14. Figure 16-13. Removing and Installing the Control Panel-PowerVault MD3600i 1 1 control panel 2 2 release tab Management: Installing Array Components - Dell PowerVault MD3620i | Owner's Manual - Page 228
the array. 2 Slide the control panel into the array until: - The release tab clicks into place in PowerVault MD3600i. See Figure 16-13. - The release pin clicks into place in PowerVault MD3620i. See Figure 16-14. 3 Replace the hard drives in their respective slots. See "Installing a Hard Drive" on - Dell PowerVault MD3620i | Owner's Manual - Page 229
only perform troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions that came - Dell PowerVault MD3620i | Owner's Manual - Page 230
Figure 16-15. Removing and Installing the RAID Controller Module /Power Supply Cage 2 1 RAID controller module /power supply cage 1 2 screws (6) 230 Management: Installing Array Components - Dell PowerVault MD3620i | Owner's Manual - Page 231
Figure 16-16. Removing and Installing the Backplane-PowerVault MD3600i 1 2 3 1 screws (5) 3 captive screw 2 backplane Figure 16-17. Removing and Installing the Backplane-PowerVault MD3620i 1 screws (4) 3 captive screw 1 2 3 2 backplane Management: Installing Array Components 231 - Dell PowerVault MD3620i | Owner's Manual - Page 232
PowerVault MD3600i or Figure 16-17 for PowerVault MD3620i. 3 Replace the screws that secure the backplane to the chassis. See Figure 16-16 for PowerVault MD3600i or Figure 16-17 for PowerVault MD3620i. 4 Align the slots on the RAID and the host server. 232 Management: Installing Array Components - Dell PowerVault MD3620i | Owner's Manual - Page 233
array, the firmware inventory service is not available on that storage array. You can also save the firmware inventory to a text file. You can then send the file to your Technical Support representative for analysis. Your Technical Support representative can detect any firmware mismatches. Viewing - Dell PowerVault MD3620i | Owner's Manual - Page 234
234 Management: Firmware Inventory - Dell PowerVault MD3620i | Owner's Manual - Page 235
tools, including the Disk Manager, to access and configure storage array virtual disks. The VDS Provider for the MD3600i Series storage arrays is available on the MD3600i Series resource media. For more information on VDS, see microsoft.com. Volume Shadow-Copy Service The Microsoft Volume Shadow - Dell PowerVault MD3620i | Owner's Manual - Page 236
permit. The Microsoft VSS installer service for storage provisioning is available on the MD3600i resource media in the \windows\ • The snapshot virtual disks created in the storage management software are differential snapshots. Plex snapshots are not supported. • Virtual disks to be used as source - Dell PowerVault MD3620i | Owner's Manual - Page 237
array. Device Health Conditions When you open the Enterprise Management Window (EMW), the Dell PowerVault Modular Disk Storage Management software (MDSM) establishes communication with each managed storage array and determines the current storage array status. The current status is represented by - Dell PowerVault MD3620i | Owner's Manual - Page 238
Software Unsupported Description Each component in the managed storage array is in the desired working condition. There is a problem with the managed storage array that requires your intervention to correct it. The storage management station cannot communicate with the storage array or one RAID - Dell PowerVault MD3620i | Owner's Manual - Page 239
management connections from the storage management station to the storage array shown in the Tree view are Unresponsive, the storage are discovered storage arrays storage array with a Needs Upgrade status is not supported. In this case, the storage to the storage array status storage array child nodes - Dell PowerVault MD3620i | Owner's Manual - Page 240
managed storage array is known. The Contacting Storage Array icon is shown in the EMW Status Bar and the AMW Status Bar and the tooltip shows Contacting Storage arrays. As each storage , or Unresponsive. No problems were encountered while adding the storage array. MDSM software continues to check for - Dell PowerVault MD3620i | Owner's Manual - Page 241
status, and performance data that can help troubleshoot any problem with the storage array. All the files are compressed into a single archive in a zipped-file format. You can forward the archive file to your Technical Support representative for troubleshooting and further analysis. To generate the - Dell PowerVault MD3620i | Owner's Manual - Page 242
software used by the Technical Support representative. The descriptor file contains: • The WWN for the storage array. • The serial number of each RAID controller module. • A time stamp. • The version number for the RAID controller module firmware. 242 Troubleshooting: Your Storage Array Software - Dell PowerVault MD3620i | Owner's Manual - Page 243
status is Failed, the reason for failure is noted, and there is no trace file for the failed RAID controller module. To retrieve the trace buffers: 1 From the AMW, select Advanced Troubleshooting Support Data Retrieve Trace Buffers. The Retrieve Trace Buffers dialog appears. 2 Select either the - Dell PowerVault MD3620i | Owner's Manual - Page 244
disks in your storage array. Your Technical Support representative can use this information to analyze the performance of your physical disks and for troubleshooting problems that might exist. saved at the location that you entered. 4 Click OK. 244 Troubleshooting: Your Storage Array Software - Dell PowerVault MD3620i | Owner's Manual - Page 245
storage array disks. It records configuration events and storage array component failures. WARNING: Use this option only under the guidance of your Technical Support information, see the PowerVault Modular Disk Storage Manager online help topics. Troubleshooting: Your Storage Array Software 245 - Dell PowerVault MD3620i | Owner's Manual - Page 246
copy of the storage array profile if your configuration changes. 1 To open the storage array profile, in the AMW, perform one of the following actions: • Select Storage Array View Profile. • Select the Summary tab, and click Storage Array Profile in the Status area. • Select the Support tab, and - Dell PowerVault MD3620i | Owner's Manual - Page 247
the file name of your choice. To associate the file with a particular software application that opens it, specify a file extension, such as .txt. NOTE: The file is saved as ASCII text. f Click Save. 6 To exit the storage array profile, click Close. Troubleshooting: Your Storage Array Software 247 - Dell PowerVault MD3620i | Owner's Manual - Page 248
disks, snapshot repository virtual disks, disk groups, unconfigured capacity, and free capacity in a storage array. To view the physical associations: 1 In the AMW, select a node in the the View Associated Physical Components dialog, click Close. 248 Troubleshooting: Your Storage Array Software - Dell PowerVault MD3620i | Owner's Manual - Page 249
tab, the Physical tab, or the Mappings tab of the Array Management Window. The search might be based on a particular node name, the RAID level, virtual disk capacity, or specific free capacity nodes. The entered in the GB box. d Go to step 8. Troubleshooting: Your Storage Array Software 249 - Dell PowerVault MD3620i | Owner's Manual - Page 250
virtual disks or virtual disk copies currently exist on the storage array. The Go To option is not accessible from the Mappings tab of the Array Management Window. 1 On the Logical tab of the AMW disk-Go to step 4. • Target virtual disk-Go to step 5. 250 Troubleshooting: Your Storage Array Software - Dell PowerVault MD3620i | Owner's Manual - Page 251
. 3 Ensure that the RAID controller modules are installed and that there is power to the storage array. 4 If there a problem with the storage array, correct the problem. 5 Perform one of these actions, depending on how your storage array is managed: Troubleshooting: Your Storage Array Software 251 - Dell PowerVault MD3620i | Owner's Manual - Page 252
sure the appropriate network configuration tasks have been performed. For example, make sure that IP addresses have been assigned to each RAID controller module. 11 If there is a cable or network accessibility problem, see step 20, if not step 12. 12 For an in-band managed storage array, make sure - Dell PowerVault MD3620i | Owner's Manual - Page 253
new AMW software needed to manage the storage array with the new version of the firmware. 21 If the problem persists contact your Technical Support representative. 22 Determine if there is an excessive amount of network traffic to one or more RAID controller modules. This problem is self-correcting - Dell PowerVault MD3620i | Owner's Manual - Page 254
click OK. The LEDs stop blinking. If any other blink operations (Blink Disk Group, Blink Storage Array, Blink Physical Disk Ports, or Blink Expansion Enclosure) are currently being invoked from another storage management station, these LEDs also stop blinking. 5 In the rare case that the LEDs on the - Dell PowerVault MD3620i | Owner's Manual - Page 255
In the rare case that the LEDs on the expansion enclosure do not stop blinking, from the Array Management Window, select Storage Array Blink Stop All Indications. If the LEDs successfully stop blinking, a confirmation message appears. 6 Click OK. Troubleshooting: Your Storage Array Software 255 - Dell PowerVault MD3620i | Owner's Manual - Page 256
. Any test information that has been generated to that point is saved to the state capture file. NOTE: Refer to the PowerVault Modular Disk Storage Manager online help topics for more information on troubleshooting, and recovering from failures. 256 Troubleshooting: Your Storage Array Software - Dell PowerVault MD3620i | Owner's Manual - Page 257
SMrepassist Utility SMrepassist (replication assistance) is a host window on a host running Windows, navigate to C:\Program Files\Dell\MD Storage Manager\util and run the following command: SMrepassist -f - Dell PowerVault MD3620i | Owner's Manual - Page 258
are tight, and restart the Host Context Agent software. • If a storage array is managed by using both out-of-band management and in-band management using the same host, a management network connection problem might prevent direct communication with the storage array. However, you might still be able - Dell PowerVault MD3620i | Owner's Manual - Page 259
have recently replaced or added the controller, restart the Host Context Agent software so that the new controller is found. If a problem exists, make the appropriate modifications to the host. 4 If you have an out-of-band storage array, use the following procedure. Click Refresh after each step to - Dell PowerVault MD3620i | Owner's Manual - Page 260
was upgraded, the MDSM might not have access to the storage array. A new version of MDSM might be needed to manage the storage array with the new version of the controller firmware. If this problem exists, see the Dell support website at support.dell.com. 6 Look to see if there is too much network - Dell PowerVault MD3620i | Owner's Manual - Page 261
on the server or management station that communicates with the MD3600i Series storage arrays. The SMagent software automatically starts after you reboot the host. Windows To restart the SMagent software in Windows: 1 Click Start Settings Control Pane Administrative Tools Services. or Click Start - Dell PowerVault MD3620i | Owner's Manual - Page 262
device (/dev/sg5): Activating Checking device (/dev/sg6): Activating Checking device (/dev/sg7): Activating Checking device (/dev/sg8): Activating Checking device (/dev/sg9): Activating 262 Troubleshooting: Your Storage Array Software - Dell PowerVault MD3620i | Owner's Manual - Page 263
your array, see Figure 3-1. • Ensure that all the cables are securely attached to the external connectors on your array. • For information on cabling, see the Dell PowerVault MD3600i Deployment Guide. Troubleshooting: Your Array 263 - Dell PowerVault MD3620i | Owner's Manual - Page 264
only perform troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions that came - Dell PowerVault MD3620i | Owner's Manual - Page 265
only perform troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions that came - Dell PowerVault MD3620i | Owner's Manual - Page 266
directed by the online or telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions that came with the product. CAUTION: In the case of non-redundant configurations, it is recommended that you - Dell PowerVault MD3620i | Owner's Manual - Page 267
. b Reseat the RAID controller module and reconnect the cables on the storage array and the server. c Restart the storage array and wait until the array is fully booted. d Turn on the server. e Check the link status LED. If the link status LED is not green, replace the cables. If the problem is not - Dell PowerVault MD3620i | Owner's Manual - Page 268
only perform troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions that came - Dell PowerVault MD3620i | Owner's Manual - Page 269
by the online or telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions that came with the product. 1 Turn off the array and disconnect all the cables. Troubleshooting: Your Array 269 - Dell PowerVault MD3620i | Owner's Manual - Page 270
drives • RAID controller modules • Power supply/cooling fan modules • Control panel • Backplane 2 Ensure that all the cables are properly connected and that there are no damaged pins in the connectors. 3 Run diagnostics available in Dell PowerVault Modular Disk Storage Manager (MDSM) software. In - Dell PowerVault MD3620i | Owner's Manual - Page 271
is configured for redundant access and cache mirroring, the surviving controller can normally recover without data loss or shutdown. Typical hard controller failures are detailed in the following sections. Invalid Storage Array The RAID controller module is supported only in a Dell-supported storage - Dell PowerVault MD3620i | Owner's Manual - Page 272
PCI Errors The storage array firmware can detect and only recover from PCI errors when the RAID controller modules are configured for redundancy. If a virtual disk uses cache mirroring, it fails over to its peer RAID controller module, which initiates a flush of the dirty cache. Critical Conditions - Dell PowerVault MD3620i | Owner's Manual - Page 273
provides several online and telephone-based support and service options. Availability varies by country and product, and some services may not be available in your area. To contact Dell for sales, technical support, or customer service issues: 1 Visit support.dell.com. 2 Click your country/region at - Dell PowerVault MD3620i | Owner's Manual - Page 274
274 Getting Help - Dell PowerVault MD3620i | Owner's Manual - Page 275
110 CHAP Secrets Creating, 84 Initiator CHAP Secret, 85 Target CHAP Secret, 85 Valid Characters, 85 Choosing an Appropriate Physical Disk Type, 115 Configuring Host Access, 95 Hot Spare Physical Disks, 125 iSCSI Host Ports, 87 Configuring Alert Notifications SNMP, 79 Contacting Dell, 265 Index 275 - Dell PowerVault MD3620i | Owner's Manual - Page 276
, 128 Entering Mutual Authentication Permissions, 84 Enterprise Management Window, 62 Event Monitor, 93 Enabling or Disabling, 93 Linux, 94 Windows, 94 F Failed RAID Controller Module, 172 Features and Indicators Front Panel, 24 Firmware Downloads, 191 Firmware Inventory, 225 View, 225 Index 276 - Dell PowerVault MD3620i | Owner's Manual - Page 277
EMM Blank, 210 Front Bezel, 202 Hard Drive, 206 Hard Drives, 206 Power Supply/cooling Fan Module, 218 L Load Balancing, 56 Locating a Physical Disk, 245 M Managing Host Groups, 98 Managing Host Port Identifiers, 103 Index 277 - Dell PowerVault MD3620i | Owner's Manual - Page 278
Service, 227 Microsoft Services Virtual Disk Copy, 52 Monitoring Performance, 57 Multi-Path Preferred and Alternate Controllers and Paths, 54 Multi-Path Software, 152 R RAID, 40 Changing Level of disk group, 139 RAID 0, 41 RAID 1, 42 RAID 10, 42 RAID 5, 42 RAID 6, 42 Usage, 41 RAID Background - Dell PowerVault MD3620i | Owner's Manual - Page 279
Setting a Password, 71 Storage Array RAID Controller Module Clocks, 81 Storage Array Media Scan, 145 Storage Arrays, 66 Automatic Discovery, 67 Manual Addition, 67 Storage Partitioning, 140 Support Contacting Dell, 265 T telephone numbers, 265 Troubleshooting Automatically Collect the Support - Dell PowerVault MD3620i | Owner's Manual - Page 280
the Host-Agent Software, 252 Start-Up Routine, 229 Storage Array Profile, 238 Storage Array Support Data, 232 Unidentified Devices, 250 Viewing the Logical Associations, 239 Viewing the Physical Associations, 240 Troubleshooting, 255 Connections, 261 Cooling Problems, 257 Damaged Enclosure - Dell PowerVault MD3620i | Owner's Manual - Page 281
Virtual Disk Operations Limit, 45 Virtual Disk Ownership, 55 Virtual Disk States, 40 Virtual DiskCopy Target, 53 Virtual Disks and Disk Groups, 39 Index 281 - Dell PowerVault MD3620i | Owner's Manual - Page 282
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Dell PowerVault MD3600i and
MD3620i Storage Arrays
Owner’s Manual
Regulatory Model: E03J Series and E04J Series
Regulatory Type: E03J001 and E04J001