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Dell PowerVault MD3000i User Manual

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Dell™ PowerVault™ Modular Disk
Storage Manager User's Guide
w w w . d e l l . c o m | s u p p o r t . d e l l . c o m

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  Summary of Contents for Dell PowerVault MD3000i

  • Page 1 Dell™ PowerVault™ Modular Disk Storage Manager User’s Guide w w w . d e l l . c o m | s u p p o r t . d e l l . c o m...
  • Page 2 Reproduction of these materials in any manner whatsoever without the written permission of Dell Inc. is strictly forbidden. Trademarks used in this text: Dell, the DELL logo, PowerEdge and PowerVault are trademarks of Dell Inc.; Microsoft, Windows, Windows Server, MS-DOS, and Internet Explorer are either trademarks or registered trademarks of Microsoft Corporation in the United States and/or other countries.
  • Page 3: Table Of Contents

    Contents About This Guide ....User Interface ..... . Summary Tab .
  • Page 4 Setting a Password ....Password Guidelines ....Resetting a Password .
  • Page 5 Viewing or Ending an iSCSI Session ..Viewing iSCSI Statistics and Setting Baseline Statistics ......Edit, Remove, or Rename Host Topology .
  • Page 6 Disk Groups and Virtual Disks ..Creating Disk Groups and Virtual Disks ..Automatic Configuration ....Manual Configuration .
  • Page 7 Premium Feature—Snapshot Virtual Disks ......Creating a Snapshot Virtual Disk Using the Simple Path .
  • Page 8 Creating a Virtual Disk Copy ....Preparing Host Servers to Create a Virtual Disk Copy ..... . Copying the Virtual Disk .
  • Page 9 11 Troubleshooting Problems ..Recovery Guru ..... . Storage Array Profile .
  • Page 10 Contents...
  • Page 11: About This Guide

    About This Guide Dell™ PowerVault™ Modular Disk (MD) Storage Manager software is used to create and manage multiple storage arrays. The software can be used on any host attached to the storage array, as well as on storage management stations connected to the same sub-network.
  • Page 12: Summary Tab

    • Beneath the Array Selector is the Content Area. Several tabs appear in this area to group the tasks you can perform on the selected array. When you click on a tab, the Content Area displays links for the tasks you can perform.
  • Page 13: Tools Tab

    • Replace physical disks • Modify the RAID level for a disk group Tools Tab • Rename a storage array • Set or change a password • View or enable premium features • Turn on indicator lights • Change enclosure ID numbers •...
  • Page 14: Other Information You May Need

    For complete regulatory and safety information, see your Information Guide . Warranty information may be included within this document or as a separate one. Setting Up Your Dell PowerVault MD provides an overview of setting up • and cabling your storage array. •...
  • Page 15: About Your Storage Array

    About Your Storage Array This chapter covers basic information about how to manage storage arrays from MD Storage Manager, including adding and removing arrays from the software, performing initial setup tasks, setting passwords on an array, and configuring alert notifications. For information on planning your storage array, see the Installation Guide.
  • Page 16: Out-Of-Band And In-Band Management

    NOTICE: Removing or manipulating an access virtual disk can cause a loss of management access. If you remove an access virtual disk mapping from an in-band-managed storage array, MD Storage Manager can no longer access the storage array. Do not modify the access virtual disk either in the operating system or with MD Storage Manager.
  • Page 17: Adding Storage Arrays

    Adding Storage Arrays To add a storage array to MD Storage Manager, click New in the Array Selector area. A window is displayed that allows you to choose the automatic or manual process to add a new storage array. NOTE: Verify that your host or management station network configuration—...
  • Page 18: Naming Storage Arrays

    • To add a storage array that uses out-of-band management, specify the host name or IP address of each controller in the storage array. NOTE: It can take several minutes for MD Storage Manager to connect to the specified storage array. Naming Storage Arrays Each storage array should be assigned a unique name.
  • Page 19: Setting Up Your Storage Array

    To remove a storage array: 1 Click Remove located to the right of the drop-down menu in the Array Selector. 2 Click OK in the Remove dialog box. You can still manage the storage array from other storage management stations where it has been added. Setting Up Your Storage Array The Perform Initial Setup Tasks link located on the Summary tab provides links to the basic steps you should follow when initially setting up a storage...
  • Page 20 6 Configure Host Access — Set up one or more hosts to access the storage array. See "Configuring Host Access" on page 43 for more information. 7 Configure storage array (2 options) Automatic (Simple) configuration • Step 1: Automatic Configuration — See "Creating Disk Groups and Virtual Disks"...
  • Page 21: Storage Array Support Data

    Storage Array Support Data Aggregated support data can be generated for a storage array to aid in remote troubleshooting and issue analysis. To generate the support data report: 1 Click the Support tab, then click Gather Support Information. 2 Click Browse to display the Collect All Support Data dialog box. 3 In the Save in drop-down box, navigate to the location where you want the report saved.
  • Page 22: Password Guidelines

    Enter the current password in the Current password text box. • Leave the New password and Confirm new password text boxes blank. If you forget your password, contact Dell for technical assistance. Password Guidelines Consider these guidelines when you create a password: •...
  • Page 23: System Setup For Password Reset

    System Setup for Password Reset ® ® Microsoft Windows Operating Systems 1 Click Start → Programs → Accessories → Communication → HyperTerminal to run HyperTerminal. If HyperTerminal is not installed, click Control Panel → Add/Remove Programs → Add/Remove Windows Components, find HyperTerminal and click the check-box, then click Apply and OK.
  • Page 24: Reset Password

    NOTICE: Failure to stop data I/O to a non-fault-tolerant array before performing the following steps may result in loss of data. Please contact Dell Technical Support for a password reset Username and Password. 1 Stop all I/O to the array.
  • Page 25: Changing Expansion Enclosure Id Numbers

    NOTE: If you require help with this procedure, contact Dell for technical assistance. For more information on contacting Dell, see the "Getting Help" chapter of the Hardware Owners Manual. Changing Expansion Enclosure ID Numbers When an MD1000 expansion enclosure is attached to an MD3000/MD3000i storage array for the first time, an enclosure ID number is assigned and maintained by the MD1000.
  • Page 26 Sender e-mail settings include the SMTP and e-mail address information MD Storage Manager uses to send e-mail alerts. To configure sender e-mail settings: 1 Click the Tools tab, then click Set Up Email Alerts. 2 Enter the following information: • Sender email address —...
  • Page 27: Configuring Snmp Alerts

    SNMP alerts. NOTE: You do not have to install MD Storage Manager on a system in order to display SNMP alerts. You need only install an appropriate SNMP service and application (such as the Dell IT Assistant). Storage Array...
  • Page 28: Battery Settings

    Battery Settings A smart battery backup unit (BBU) can perform a learn cycle. The smart BBU module includes the battery, a battery gas gauge, and a battery charger. The learn cycle calibrates the smart battery gas gauge so that it provides a measurement of the charge of the battery module.
  • Page 29: Starting Or Restarting The Host-Agent Software In Linux

    server or management station is unable to communicate with the MD3000 or MD3000i, you must restart the SMagent software manually using the following procedure: 1 Click Start → Settings → Control Panel → Administrative Tools → Services. Click Start → Administrative Tools → Services. 2 In the Services dialog, select Modular Disk Storage Manager Agent.
  • Page 30 After the program completes the startup process, text similar to the following messages is displayed: Storage Manager Agent, Version 09.1x.00.00 Built Wed Aug 15 16:54:46 CDT 2006 Copyright (C) 2006. All rights reserved. checking device /dev/rdsk/c0t0d0s2 : skipping checking device /dev/rdsk/c2t3d18s2 : skipping checking device /dev/rdsk/c2t3e16s2 : skipping checking device /dev/rdsk/c2t3d14w2 : skipping...
  • Page 31: Using Iscsi

    Using iSCSI This chapter provides information on using iSCSI in MD Storage Manager. For iSCSI prerequisite requirements and detailed step-by-step instructions on setting up and configuring iSCSI, see the Installation Guide. Using the iSCSI Tab The iSCSI tab is shown in the MD Storage Manager only when the controllers contain iSCSI host ports.
  • Page 32: Changing The Iscsi Target Authentication

    Changing the iSCSI Target Authentication 1 Click the iSCSI tab, and then click Change Target Authentication. 2 Select None if no authentication is required for any initiator to access the target. NOTE: If you select None, any initiator can access this target. Use this option only if you do not require secure data.
  • Page 33 must enter the same CHAP secret that is defined in the iSCSI initiator, and you must define a CHAP secret on the target (the storage array) that must be configured in every iSCSI initiator that will connect to the target. For more information on CHAP , see "Understanding CHAP Authentication"...
  • Page 34: Changing The Iscsi Target Identification

    Changing the iSCSI Target Identification You cannot change the iSCSI target name, but you can associate an alias with the target for simpler identification. Aliases are useful because the iSCSI target names are not intuitive. You should provide an iSCSI target alias that is meaningful and easy to remember.
  • Page 35: Configuring The Md3000I Iscsi Host Ports

    Configuring the MD3000i iSCSI Host Ports Use the configuration dialog for the iSCSI host ports to set up the MD3000i iSCSI host ports to use with storage arrays in a storage area network (SAN). 1 Click the iSCSI tab, and then click Configure iSCSI Host Ports. 2 Select the controller in the iSCSI host port field, and then use one of these methods to configure the port: Automatically obtain the configuration using one of the following...
  • Page 36: Viewing Or Ending An Iscsi Session

    (continued) Table 3-2. Advanced iSCSI Host Port Settings Setting Description Ethernet Priority The network priority can be set from lowest to highest. Although network managers must determine these mappings, the IEEE has made broad recommendations: • 0 — lowest priority (default) •...
  • Page 37: Viewing Iscsi Statistics And Setting Baseline Statistics

    In the confirmation window, type yes to confirm that you want to end the iSCSI session, and then click OK. NOTE: If you end a session, any corresponding connections terminate the link between the host and the storage array, and the data on the storage array is no longer available.
  • Page 38: Edit, Remove, Or Rename Host Topology

    Confirm that you want to set the baseline statistics in the dialog that appears. The baseline time shows the latest time you set the baseline. The sampling interval is the difference in time from when you set the baseline until you launch the dialog or click Refresh. NOTE: You must first set a baseline before you can compare baseline statistics.
  • Page 39 (continued) Table 3-3. Host Topology Actions Desired Action Steps to Complete Action Add an iSCSI Initiator. Click the Modify tab, and then click Edit Host Topology. Select the host you want to add an iSCSI initiator to and click Add. Type or select an iSCSI initiator name and label for the iSCSI initiator and click OK.
  • Page 40 Using iSCSI...
  • Page 41: Event Monitor

    Event Monitor An event monitor is provided with MD Storage Manager. When enabled, the event monitor runs continuously in the background and monitors activity on the managed storage arrays. If the event monitor detects any critical problems, it can notify a host or remote system using e-mail, Simple Network Management Protocol (SNMP) trap messages, or both.
  • Page 42: Disabling The Event Monitor

    Disabling the Event Monitor Disable the event monitor if you do not want the system to send alert notifications. If you are running the event monitor on multiple systems, disabling the event monitor on all but one system prevents the sending of duplicate messages.
  • Page 43: About Your Host

    About Your Host This chapter covers basic information about configuring host groups and host access, host topology, and I/O data path protection. A host is a system that accesses a storage array and is mapped to the virtual disks through one or more host connections. Hosts have the following attributes: •...
  • Page 44: Automatic Configuration

    To begin configuring host access, click the Configure tab and then click either Configure Host Access (Automatic) or Configure Host Access (Manual). See the appropriate section for manual configuration, depending on whether you are using SAS HBA or iSCSI. Automatic Configuration NOTE: The host must be connected (iSCSI or SAS) and the host agent restarted after the connection is made in order to use automatic configuration.
  • Page 45: Manual Configuration (Using Iscsi)

    4 Specify the HBA host ports by choosing known host ports or by manually defining host ports. To select a host port that is already recognized by MD Storage Manager, click a host port in the Known HBA host ports list, then click Add. To manually define a host port, click New, enter the HBA host port and Alias in the Enter New HBA Host Port dialog box, and then click Add.
  • Page 46: Removing Host Access

    To manually define an initiator, click New, enter the iSCSI initiator name and iSCSI initiator label in the Enter new iSCSI initiator dialog box, and then click Add. NOTE: The initiator name entered must match the name on a host server that will connect to the storage array.
  • Page 47: Host Groups

    Host Groups A host group is a logical entity of two or more hosts that share access to specific virtual disks on the storage array. You create host groups with MD Storage Manager. All hosts in a host group must have the same host type (operating system). In addition, all hosts in the host group must have special software, such as clustering software, to manage virtual disk sharing and accessibility.
  • Page 48: Removing A Host From A Host Group

    4 Select the host group to which you want to move the host. 5 Click OK. The host is moved into the host group. The host retains the virtual disk mappings assigned to it, and inherits the virtual disk mappings assigned to the group. Other hosts in the group do not inherit the mappings of the added host.
  • Page 49: Removing A Host Group

    The host retains the virtual disk mappings assigned to it, and inherits the virtual disk mappings assigned to the group to which it is moved. The host loses the virtual disk mappings assigned to the group from which it was moved.
  • Page 50: Host Context Agent

    Host Context Agent The host context agent discovers the host topology. The host context agent starts when the host is started and stops when the host is turned off. The topology discovered by the host context agent can be viewed by clicking Configure Host Access (Automatic) in the Configure tab in the MD Storage Manager.
  • Page 51: I/O Data Path Protection

    I/O Data Path Protection You can have multiple host-to-array connections for a host. Make sure to select all of the connections to the array when configuring host access to the storage array. NOTICE: Refer to the Installation Guide for more information on cabling configurations.
  • Page 52 About Your Host...
  • Page 53: Disk Groups And Virtual Disks

    Disk Groups and Virtual Disks Following is a list of terms used throughout this chapter: • Disk Group — A set of physical disks that are logically grouped and assigned a RAID level. Every disk group provides the overall capacity required to create one or more virtual disks.
  • Page 54: Creating Disk Groups And Virtual Disks

    Creating Disk Groups and Virtual Disks Disk groups are created in the unconfigured capacity of a storage array, and virtual disks are created in the free capacity of a disk group. 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.
  • Page 55: Automatic Configuration

    performed in the department: Accounts Receivable (AR), Accounts Payable (AP), internal billing, and so forth. In this scenario, the AR and AP virtual disks probably need more capacity than the internal billing virtual disk. NOTE: In Linux, the host must be rebooted after deleting virtual disks to reset the /dev entries.
  • Page 56 3 Select Manual on the Create Virtual Disks – Physical Disk Selection Choices page, then click Next. 4 Select the RAID level for the new disk group. 5 To select one physical disk to add to the disk group, click the disk of your choice in the Unselected physical disks list.
  • Page 57 15 To map the new virtual disk to a host now, select Map now and assign a logical unit number (LUN) to the virtual disk in the drop-down box. To map the new virtual disk to a host later, select Map later. 16 Click Finish to create the new disk group and the first virtual disk in the group.
  • Page 58: Hot Spare Drive Protection

    If you plan to create multiple virtual disks, wait until you have created all the virtual disks to register them. Waiting prevents you from having to register virtual disks more than once. Linux NOTE: You need super-user (Linux) privileges to run the utility.
  • Page 59: Manually Configuring Hot Spares

    coverage for the storage array. The number and type of hot spare drives is determined based on the number, type, and capacity of physical disks in the storage array. To add hot spare drive protection using automatic configuration: 1 Click the Configure tab, then click Configure Hot Spares. 2 To automatically assign hot spare drives, click Configure Hot Spares (Automatic).
  • Page 60: Host-To-Virtual Disk Mapping

    Host-to-Virtual Disk Mapping After you create virtual disks, you must map them to the host(s) connected to the array. When you configure host-to-virtual disk mapping, consider these guidelines: • Each virtual disk in the storage array can be mapped to only one host or host group.
  • Page 61: Changing Controller Ownership Of The Virtual Disk

    4 To map the disk to a different host or host group, click Change located to the right of the list. 5 To remove the disk mapping to a host or host group, click Remove located to the right of the list. Changing Controller Ownership of the Virtual Disk If the host has a single data-path to the MD storage array, the virtual disk must be owned by the controller to which the host is connected.
  • Page 62: Disk Group And Virtual Disk Expansion

    Administrative Tools and select the Disk Management MMC option to format and partition the disk. If the host server is running Windows Server 2008 Core version, partition and format the virtual disk using the Microsoft DiskPart utility. Disk Group and Virtual Disk Expansion Adding free capacity to a disk group is achieved by adding unconfigured capacity on the array to the disk group.
  • Page 63: Disk Group Migration

    If you receive a warning that the snapshot repository virtual disk is becoming full, you may expand the snapshot repository virtual disk from MD Storage Manager. See "Snapshot Repository Capacity" on page 81 for step-by-step instructions. Disk Group Migration Disk group migration allows you export a disk group so that you can import the disk group to a different storage array.
  • Page 64: Import Disk Group

    Basic Steps for 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 up the data on the virtual disks in the disk group. 4 Locate the disk group, and label the physical disks.
  • Page 65: Storage Array Media Scan

    On the target storage array: 1 Insert the exported physical disks into the available physical disk slots. 2 Review the Import Report for an overview of the disk group that you are importing. 3 Check for non-importable components. 4 Confirm that you want to proceed with the import procedure. NOTE: Some settings cannot be imported during the import disk group procedure.
  • Page 66: Changing Media Scan Settings

    • Unfixable error — Data could not be read and parity or redundancy information could not be used to regenerate the data. For example, redundancy information cannot be used to reconstruct the data on a degraded virtual disk. The error is reported to the event log. Changing Media Scan Settings 1 Click the Tools tab, then click Change Media Scan Settings.
  • Page 67: Microsoft Services

    Microsoft Services Virtual Disk Service The Microsoft Virtual Disk Service (VDS) is supported on your RAID storage array. Microsoft VDS is a set of application programming interfaces (APIs) that provides a single interface for managing disks and other storage hardware, including creating virtual disks on those physical disks. Volume Shadow-Copy Service The Microsoft Volume Shadow-copy Service (VSS) is a storage management interface for Microsoft Windows operating systems.
  • Page 68 Disk Groups and Virtual Disks...
  • Page 69: Premium Feature-Snapshot Virtual

    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.
  • Page 70: Creating A Snapshot Virtual Disk Using The Simple Path

    Deleting a snapshot does not affect data on the source virtual disk. The information that follows will better prepare users for using the snapshot virtual disk premium feature of the Dell PowerVault systems. NOTE: The following host preparation sections also apply when using the snapshot feature through the CLI interface.
  • Page 71: About The Simple Path

    About the Simple Path Using the simple path, you can specify the following parameters for your snapshot virtual disk: • Snapshot Virtual Disk Name — A user-specified name that helps you associate the snapshot virtual disk to its corresponding snapshot repository virtual disk and source virtual disk.
  • Page 72 For details on mapping the snapshot virtual disk to the secondary node, refer to the Dell PowerEdge™ Cluster SE600W Systems Installation and Troubleshooting Guide on support.dell.com NOTE: You can create concurrent snapshots of a source virtual disk on both the source disk group and on another disk group.
  • Page 73: Creating The Snapshot Using The Simple Path

    3 Remove the drive letter(s) of the source in Windows or unmount the virtual drive(s) in Linux to help guarantee a stable copy of the drive for the Snapshot. If this is not done, the snapshot operation will report that it has completed successfully, but the snapshot data will not be updated properly.
  • Page 74: Click Next

    5 On the Create Snapshot Virtual Disks – Select Path screen, select the Simple path. NOTE: A snapshot repository virtual disk requires 8 MB of free space. If the required free space is not available in the disk group of the source virtual disk, the Create Snapshot Virtual Disks feature defaults to the advanced path.
  • Page 75: Creating A Snapshot Virtual Disk Using The Advanced Path

    Use unconfigured capacity and create a new disk group for the snapshot repository virtual disk. Dell recommends placing the snapshot repository virtual disk within the disk group of the source virtual disk. This ensures that if drives associated with the disk group are moved to another storage array, all the virtual disks associated with the snapshot virtual disk remain in the same group.
  • Page 76: Preparing Host Servers To Create The Snapshot Using The Advanced Path

    For details on mapping the snapshot virtual disk to the secondary node, refer to the Dell PowerEdge™ Cluster SE600W Systems Installation and Troubleshooting Guide on support.dell.com The destination of a snapshot repository virtual disk is determined based on the free capacity available in the disk group.
  • Page 77 Before creating a Snapshot Virtual Disk, note the following: • The following types of virtual disks are not valid source virtual disks: snapshot repository virtual disks, snapshot virtual disks, target virtual disks that are participating in a virtual disk copy. NOTE: Virtual Disk Copy is an Advanced (Premium) feature.
  • Page 78: Creating The Snapshot Using The Advanced Path

    4 Follow any additional instructions for your operating system. Failure to follow these additional instructions can create unusable snapshot virtual disks. NOTE: If your operating system requires additional instructions, you can find those instructions in your operating system documentation. After your host server has been prepared, see "Creating the Snapshot Using the Advanced Path"...
  • Page 79 6 Click Next. 7 Type a name for the snapshot in the Snapshot virtual disk name text box. 8 Type a name for the snapshot repository virtual disk in the Snapshot repository virtual disk name text box. 9 Click Next. 10 Choose whether to create the snapshot virtual disk from unconfigured capacity or free capacity.
  • Page 80: Specifying Snapshot Virtual Disk Names

    15 Click Finish to create the snapshot virtual disk and the associated snapshot repository virtual disk. 16 After you have created one or more snapshot virtual disks, mount or reassign a drive letter of the source virtual disk. 17 If needed, assign host-to-virtual disk mapping between the snapshot virtual disk and the host operating system that accesses it.
  • Page 81: Snapshot Repository Capacity

    • Whether you use the software-supplied sequence number that (by default) populates the Snapshot virtual disk name or the Snapshot repository virtual disk name field, the next default name for a snapshot or snapshot repository virtual disk still uses the sequence number determined by the software.
  • Page 82: Re-Creating Snapshot Virtual Disks

    • Any virtual disk in the disk group is in any state of modification. • The controller that has ownership of this virtual disk is currently adding capacity to another virtual disk. Each controller can add capacity to only one virtual disk at a time. •...
  • Page 83: Preparing Host Servers To Re-Create A Snapshot Virtual Disk

    To disable a snapshot virtual disk: 1 Click the Modify tab, then click Modify snapshot virtual disks. 2 Click Disable Snapshot Virtual Disks. 3 Highlight the snapshot virtual disk to be disabled and click Disable beneath the list. 4 In the Confirm Disable Snapshot Virtual Disk dialog box, type yes and then click OK.
  • Page 84: Re-Creating A Snapshot Virtual Disk

    4 Remove the drive letter(s) of the source and (if mounted) snapshot virtual disk in Windows or unmount the virtual drive(s) in Linux to help guarantee a stable copy of the drive for the Snapshot. If this is not done, the snapshot operation will report that it has completed successfully, but the snapshot data will not be updated properly.
  • Page 85: Premium Feature-Virtual Disk Copy

    If you ordered this 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 the feature.
  • Page 86: Creating A Virtual Disk Copy For An Mscs Shared Disk

    Reasons to use virtual disk copy include the following: • Copying data for improved access — As your storage requirements for a virtual disk change, you can use a virtual disk copy to copy data to a virtual disk in a disk group that uses drives with larger capacity within the same storage array.
  • Page 87: Virtual Disk Read/Write Permissions

    Virtual Disk Read/Write Permissions After the virtual disk copy is complete, the target virtual disk automatically becomes read-only to the hosts. The target virtual disk rejects read and write requests while the virtual disk copy operation has a status of Pending or In Progress or if the operation fails before completing the copy.
  • Page 88: Virtual Disk Copy Restrictions

    Virtual Disk Copy Restrictions Before you perform any virtual disk copy tasks, understand and adhere to the restrictions listed in this section. The restrictions apply to the source virtual disk, the target virtual disk, and the storage array. • While a virtual disk copy has a status of In Progress, Pending, or Failed, the source virtual disk is available for read I/O activity only.
  • Page 89: Creating A Virtual Disk Copy

    Creating a Virtual Disk Copy Use the Create Virtual Disk Copies feature on the Configure tab to create a full copy of a source virtual disk. This operation overwrites any existing data on the target virtual disk. Once the virtual disk copy has started, all I/O activity to the source virtual disk is read-only.
  • Page 90: Copying The Virtual Disk

    4 Remove the drive letter(s) of the source and (if mounted) virtual disk in Windows or unmount the virtual drive(s) in Linux to help guarantee a stable copy of the drive for the virtual disk. If this is not done, the copy operation will report that it has completed successfully, but the copied data will not be updated properly.
  • Page 91: Storage Array Performance During Virtual Disk Copy

    5 Set the copy priority for the virtual disk copy and click Next. The source virtual disk, the target virtual disk, and the copy priority setting that you selected appear on the Create virtual disk copies—Confirm Copy Settings dialog. The higher priorities allocate more resources to the virtual disk copy at the expense of the storage array’s performance.
  • Page 92: Stopping A Virtual Disk Copy

    You can change the copy priority for a virtual disk copy in the following circumstances: • Before the virtual disk copy begins See "Creating a Virtual Disk Copy" on page 89. • While the virtual disk copy is in progress Click the Modify tab, then click Manage Virtual Disk Copies.
  • Page 93: Preparing Host Servers To Recopy A Virtual Disk

    Preparing Host Servers to Recopy a Virtual Disk NOTICE: Before you create a new copy of a source virtual disk, stop any data access (I/O) activity or suspend data transfer to the source virtual disk (and, if applicable, the target disk) to ensure that you capture an accurate point-in-time image of the source virtual disk.
  • Page 94: Recopying The Virtual Disk

    Recopying the Virtual Disk After first preparing the host server(s) as specified in the preceding procedure, complete the following steps to create a new virtual disk copy for an existing copy pair: 1 Click the Modify tab, and then click Manage virtual disk copies. You can only select one copy operation at a time to be recopied.
  • Page 95: Removing Copy Pairs

    3 You must register the target virtual disk with the operating system before you can use the new virtual disk. Perform the following steps: Enable write permission on the target virtual disk by either removing the virtual disk copy pair (see "Removing Copy Pairs" on page 95) or explicitly setting write permission.
  • Page 96 Virtual Disk Copy...
  • Page 97: Premium Feature-32 Partitions

    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 enable the feature.
  • Page 98 Snapshot Virtual Disks...
  • Page 99: Firmware Downloads

    Firmware Downloads You can download the following types of firmware images with MD Storage Manager: • RAID controller module firmware that manages the storage array controllers • RAID nonvolatile static random access memory (NVSRAM) images that specify the default settings for the storage array controllers •...
  • Page 100: Downloading Both Raid Controller And Nvsram Firmware

    I/O to the array can continue while you are upgrading RAID controller and NVSRAM firmware. NOTE: Dell recommends that the firmware and NVSRAM be upgraded during a maintenance period when the array is not being used for I/O. NOTE: The RAID enclosure must contain at least two disk drives in order to update the firmware on the controller.
  • Page 101: Downloading Only Nvsram Firmware

    11 A Confirm Download dialog box appears listing the current versions and the versions you selected of the RAID controller and NVSRAM firmware. To complete the download, click Yes. Downloading Only NVSRAM Firmware Use the following procedure to download NVSRAM firmware: 1 Click the Support tab, then click Download firmware.
  • Page 102: Downloading Physical Disk Firmware

    Downloading Physical Disk Firmware Use the following procedure to download physical disk firmware: NOTE: Dell recommends stopping all I/O to the array when downloading physical disk firmware. NOTE: Due to a limitation with Linux, physical disk firmware updates must be performed using out-of-band management only.
  • Page 103: Downloading Emm Firmware

    All I/O to the array should be stopped before performing the upgrade. NOTE: Due to the nature of the enhancements made by the 07.xx firmware, once the upgrade to the 07.xx firmware is made, Dell does not support converting back to the 06.xx firmware. Firmware Downloads...
  • Page 104 2 If you are running 06.70.xx.xx firmware, perform the following steps to upgrade to 07.35.xx.xx firmware. Run the Modular Disk Storage Manager Firmware Upgrade utility. (Start→Programs→Dell→MD Storage Manager→Modular Disk Storage Manager Firmware Upgrade or equivalent based on the operating system).
  • Page 105 NOTE: Arrays not in an optimal state must be made optimal before they can be upgraded. NOTE: Multiple arrays of the same type (for example, all MD3000 or MD3000i) can be upgraded at the same time with the utility. Click on the Download symbol and the firmware/NVSRAM pop-up will be displayed.
  • Page 106 Firmware Downloads...
  • Page 107: Troubleshooting Problems

    Troubleshooting Problems The following sections provide information to assist you in resolving problems that may occur with your MD Storage Array. Recovery Guru The Recovery Guru is a component of MD Storage Manager that diagnoses critical events on the storage array and recommends step-by-step recovery procedures for problem resolution.
  • Page 108: Smrepassist Utility

    You can also use this utility to resolve duplicate signature problems for snapshot virtual disks. ® From a MS-DOS window on a host running Windows, navigate to C:\Program Files\Dell\MD Storage Manager\util and run the following command: SMrepassist -f <filesystem-identifier> Troubleshooting...
  • Page 109: Support Information Package

    where -f flushes all the memory-resident data for the file system indicated by <filesystem-identifier>, and <filesystem-identifier> specifies a unique file system in the following syntax: drive-letter: <mount-point-path> The file system identifier might consist of only a drive letter, as in the following example: SMrepassist -f E: NOTE:...
  • Page 110: Unidentified Devices

    Unidentified Devices An unidentified node or device occurs when the MD Storage Manager cannot access a new storage array. Causes for this error include network connection problems, the storage array is turned off, or the storage array does not exist. NOTE: Before beginning any recovery procedure, make sure that the host-agent software is installed and running.
  • Page 111 Make sure that the network can access the host by using the ping command in the following syntax: ping <host-name-or-IP-address-of-the-host>. If the network can access the host, continue to step c. If the network cannot access the host, skip to step d. Remove the host with the unresponsive status from the MD Storage Manager, and add that host again.
  • Page 112 A new version of MD Storage Manager 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 traffic to one or more controllers.
  • Page 113: A Enclosure Hardware Replacement

    Enclosure Hardware Replacement, Maintenance, and Configuration Considerations Removing and Inserting Enclosure Management Modules on Attached Expansion Enclosures The following procedures describe how to safely remove and insert an enclosure management module (EMM) from an expansion enclosure attached to the MD3000/MD3000i. NOTICE: Failure to follow these guidelines may result in a physical disk failing during removal and/or inadvertent removal of its redundant data path.
  • Page 114: Removing And Inserting Physical Disks

    2 After attaching the SAS cables, wait at least three minutes for the EMM to reach optimal state. NOTE: You may experience a transitional failure on multiple EMMs in the MEL log while the system updates. Removing and Inserting Physical Disks Refer to the following guidelines to ensure that physical disks are safely removed from and inserted into the MD3000/MD3000i RAID storage array.
  • Page 115: Md3000 Cluster Configuration Guidelines For Standalone Host Servers

    MD3000 Cluster Configuration Guidelines for Standalone Host Servers If one of the standalone host servers you are planning to configure into a cluster environment is running MD Storage Manager and has a virtual disk mapped to the array, use that host to create the Host Group and quorum virtual disk mapping.
  • Page 116 Hardware Considerations...
  • Page 117: Index

    Index disk group, 12, 53-55, 82 creating, 54 alert automatic, 55 e-mail, 27 manual, 55 SNMP , 27 migration, 63 documentation, 14 download firmware, 14 backup, 86 battery settings, 28 e-mail alert, 27 event monitor, 15 expansion enclosure ID configuration numbers, 25 considerations, 113 changing, 25...
  • Page 118 iSCSI (continued) edit, remove, or rename host hardware replacement, 113 topology, 38 HBA port, 43 entering mutual authentication permissions, 32 host, 15 iSCSI tab, 13 access, 12 viewing or ending a session, 36 configuration, 43-59 viewing or setting statistics, 37 group, 47 name, 43 topology, 49...
  • Page 119 61 virtual disk copy, 85 storage partitioning, 53 Summary tab, 12, 58 Support tab, 13 RAID level, 54-55, 91 support.dell.com, 14 safety information, 14 target virtual disk, 85, 92 SMrepassist utility, 108 Tools tab, 13 snapshot repository virtual...
  • Page 120 virtual disk (continued) registering, 57 source, 69, 81 virtual disk copy, 12, 89, 92 examples, 86 restrictions, 88 stop, 92 warranty, 14 Index...

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