Dell PowerVault MD3000i User manual

www.dell.com | support.dell.com
Dell™ PowerVault™ Modular Disk
Storage Manager User’s Guide

Notes and Notices
NOTE: A NOTE indicates important information that helps you make better use of
your computer.
NOTICE: A NOTICE indicates either potential damage to hardware or loss of data
and tells you how to avoid the problem.
____________________
Information in this document is subject to change without notice.
© 2008 Dell Inc. All rights reserved.
Reproduction of these materials in any manner whatsoever without the written permission of Dell Inc.
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Other trademarks and trade names may be used in this document to refer to either the entities claiming
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trade names other than its own.
September 2008

Contents 3
Contents
1 About This Guide . . . . . . . . . . . . . . . . . . . 11
User Interface . . . . . . . . . . . . . . . . . . . . . . 11
Summary Tab . . . . . . . . . . . . . . . . . . . . 12
Configure Tab . . . . . . . . . . . . . . . . . . . 12
Modify Tab . . . . . . . . . . . . . . . . . . . . . 12
Tools Tab . . . . . . . . . . . . . . . . . . . . . . 13
iSCSI Tab . . . . . . . . . . . . . . . . . . . . . . 13
Support Tab . . . . . . . . . . . . . . . . . . . . 13
Other Information You May Need . . . . . . . . . . . . 14
2 About Your Storage Array . . . . . . . . . . . . 15
Access Virtual Disk . . . . . . . . . . . . . . . . . . . 15
Out-of-Band and In-Band Management . . . . . . . . 16
Adding Storage Arrays . . . . . . . . . . . . . . . . . 17
Automatic Discovery of Storage Arrays . . . . . . 17
Manual Addition of a Storage Array . . . . . . . . 17
Naming Storage Arrays . . . . . . . . . . . . . . . . . 18
Removing Storage Arrays . . . . . . . . . . . . . . . . 18
Setting Up Your Storage Array . . . . . . . . . . . . . 19
Storage Array Support Data . . . . . . . . . . . . . . . 21

4Contents
Setting a Password . . . . . . . . . . . . . . . . . . . 21
Password Guidelines . . . . . . . . . . . . . . . . 22
Resetting a Password . . . . . . . . . . . . . . . . . . 22
Connecting the Serial Cable . . . . . . . . . . . . 22
System Setup for Password Reset . . . . . . . . . 23
Reset Password . . . . . . . . . . . . . . . . . . 24
Changing Expansion Enclosure ID Numbers . . . . . . 25
Configuring Alert Notifications . . . . . . . . . . . . . 25
Configuring E-mail Alerts . . . . . . . . . . . . . . 25
Configuring SNMP Alerts . . . . . . . . . . . . . 27
Battery Settings . . . . . . . . . . . . . . . . . . . . . 28
Starting or Restarting the Host-Agent Software
in Windows . . . . . . . . . . . . . . . . . . . . . . . 28
Starting or Restarting the Host-Agent Software
in Linux . . . . . . . . . . . . . . . . . . . . . . . . . . 29
3 Using iSCSI . . . . . . . . . . . . . . . . . . . . . . . 31
Using the iSCSI Tab . . . . . . . . . . . . . . . . . . . 31
Changing the iSCSI Target Authentication . . . . . . . 32
Entering Mutual Authentication Permissions . . . . . 32
Creating CHAP Secrets . . . . . . . . . . . . . . . 32
Changing the iSCSI Target Identification . . . . . . . . 34
Changing the iSCSI Target Discovery (Optional) . . . . 34
Configuring the MD3000i iSCSI Host Ports . . . . . . . 35
Advanced iSCSI Host Ports Settings . . . . . . . . 35

Contents 5
Viewing or Ending an iSCSI Session . . . . . . . . . . 36
Viewing iSCSI Statistics and Setting Baseline
Statistics . . . . . . . . . . . . . . . . . . . . . . . . . 37
Edit, Remove, or Rename Host Topology . . . . . . . . 38
4 Event Monitor . . . . . . . . . . . . . . . . . . . . . 41
Enabling the Event Monitor . . . . . . . . . . . . . . . 41
Disabling the Event Monitor . . . . . . . . . . . . . . 42
5 About Your Host . . . . . . . . . . . . . . . . . . . 43
Configuring Host Access . . . . . . . . . . . . . . . . 43
Automatic Configuration . . . . . . . . . . . . . . 44
Manual Configuration (using SAS HBA) . . . . . . 44
Manual Configuration (using iSCSI) . . . . . . . . 45
Removing Host Access . . . . . . . . . . . . . . 46
Host Groups . . . . . . . . . . . . . . . . . . . . . . . 47
Creating a Host Group . . . . . . . . . . . . . . . 47
Adding a Host to a Host Group . . . . . . . . . . . 47
Removing a Host From a Host Group . . . . . . . 48
Moving a Host to a Different Host Group . . . . . 48
Removing a Host Group . . . . . . . . . . . . . . 49
Host Topology . . . . . . . . . . . . . . . . . . . . . . 49
Host Context Agent . . . . . . . . . . . . . . . . . 50
I/O Data Path Protection . . . . . . . . . . . . . . . . 51

6Contents
6 Disk Groups and Virtual Disks . . . . . . . . . 53
Creating Disk Groups and Virtual Disks . . . . . . . . 54
Automatic Configuration . . . . . . . . . . . . . . 55
Manual Configuration . . . . . . . . . . . . . . . 55
Hot Spare Drive Protection . . . . . . . . . . . . . . . 58
Automatically Configuring Hot Spares . . . . . . . 58
Manually Configuring Hot Spares . . . . . . . . . 59
Host-to-Virtual Disk Mapping . . . . . . . . . . . . . . 60
Creating Host-to-Virtual Disk Mappings . . . . . . 60
Modifying and Removing Host-to-Virtual
Disk Mapping . . . . . . . . . . . . . . . . . . . . 60
Changing Controller Ownership of the
Virtual Disk . . . . . . . . . . . . . . . . . . . . . 61
Storage Partitioning . . . . . . . . . . . . . . . . . . . 61
Disk Group and Virtual Disk Expansion . . . . . . . . . 62
Disk Group Expansion . . . . . . . . . . . . . . . 62
Virtual Disk Expansion . . . . . . . . . . . . . . . 62
Disk Group Migration . . . . . . . . . . . . . . . . . . 63
Export Disk Group . . . . . . . . . . . . . . . . . 63
Import Disk Group . . . . . . . . . . . . . . . . . 64
Storage Array Media Scan . . . . . . . . . . . . . . . 65
Changing Media Scan Settings . . . . . . . . . . 66
Suspending the Media Scan . . . . . . . . . . . . 66
Microsoft Services . . . . . . . . . . . . . . . . . . . 67
Virtual Disk Service . . . . . . . . . . . . . . . . . 67
Volume Shadow-Copy Service . . . . . . . . . . . 67

Contents 7
7 Premium Feature—Snapshot Virtual
Disks . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Creating a Snapshot Virtual Disk Using the
Simple Path . . . . . . . . . . . . . . . . . . . . . . . 70
About the Simple Path . . . . . . . . . . . . . . . 71
Preparing Host Servers to Create the Snapshot
Using the Simple Path . . . . . . . . . . . . . . . 71
Creating the Snapshot Using the Simple
Path . . . . . . . . . . . . . . . . . . . . . . . . . 73
Creating a Snapshot Virtual Disk Using the
Advanced Path . . . . . . . . . . . . . . . . . . . . . 75
About the Advanced Path . . . . . . . . . . . . . 75
Preparing Host Servers to Create the Snapshot
Using the Advanced Path . . . . . . . . . . . . . 76
Creating the Snapshot Using the Advanced
Path . . . . . . . . . . . . . . . . . . . . . . . . . 78
Specifying Snapshot Virtual Disk Names . . . . . . . 80
Snapshot Repository Capacity . . . . . . . . . . . . . 81
Re-creating Snapshot Virtual Disks . . . . . . . . . . 82
Disabling a Snapshot Virtual Disk . . . . . . . . . 82
Preparing Host Servers to Re-create a
Snapshot Virtual Disk . . . . . . . . . . . . . . . 83
Re-creating a Snapshot Virtual Disk . . . . . . . . 84
8 Premium Feature—Virtual Disk Copy . . . 85
Creating a Virtual Disk Copy for an MSCS
Shared Disk . . . . . . . . . . . . . . . . . . . . . . . 86
Virtual Disk Read/Write Permissions . . . . . . . . . . 87
Virtual Disk Copy Restrictions . . . . . . . . . . . . . 88

8Contents
Creating a Virtual Disk Copy . . . . . . . . . . . . . . 89
Preparing Host Servers to Create a Virtual
Disk Copy . . . . . . . . . . . . . . . . . . . . . . 89
Copying the Virtual Disk . . . . . . . . . . . . . . 90
Storage Array Performance During Virtual
Disk Copy . . . . . . . . . . . . . . . . . . . . . . . . 91
Setting Copy Priority . . . . . . . . . . . . . . . . 91
Stopping a Virtual Disk Copy . . . . . . . . . . . . . . 92
Recopying a Virtual Disk . . . . . . . . . . . . . . . . 92
Preparing Host Servers to Recopy a
Virtual Disk . . . . . . . . . . . . . . . . . . . . . 93
Recopying the Virtual Disk . . . . . . . . . . . . . 94
Removing Copy Pairs . . . . . . . . . . . . . . . . . . 95
9 Premium Feature—32 Partitions . . . . . . . 97
10 Firmware Downloads . . . . . . . . . . . . . . . . 99
Downloading RAID Controller and NVSRAM
Packages . . . . . . . . . . . . . . . . . . . . . . . . 99
Downloading Both RAID Controller and
NVSRAM Firmware . . . . . . . . . . . . . . . . . 100
Downloading Only NVSRAM Firmware . . . . . . 101
Downloading Non-redundant MSCS
NVSRAM Firmware . . . . . . . . . . . . . . . . . 101
Downloading Physical Disk Firmware . . . . . . . . . 102
Downloading EMM Firmware . . . . . . . . . . . . . . 103
Firmware Upgrade to 07.xx . . . . . . . . . . . . . . . 103

Contents 9
11 Troubleshooting Problems . . . . . . . . . . 107
Recovery Guru . . . . . . . . . . . . . . . . . . . . . . 107
Storage Array Profile . . . . . . . . . . . . . . . . . . 107
Device Health Conditions . . . . . . . . . . . . . . . . 107
SMrepassist Utility . . . . . . . . . . . . . . . . . . . 108
Support Information Package . . . . . . . . . . . . . . 109
Unidentified Devices . . . . . . . . . . . . . . . . . . 110
Recovering from an Unidentified Storage Array . . . . 110
A Enclosure Hardware Replacement,
Maintenance, and Configuration
Considerations . . . . . . . . . . . . . . . . . . . 113
Removing and Inserting Enclosure Management
Modules on Attached Expansion Enclosures . . . . . 113
Removing an EMM from the Expansion
Enclosure . . . . . . . . . . . . . . . . . . . . . . 113
Inserting an EMM into an Expansion
Enclosure . . . . . . . . . . . . . . . . . . . . . . 113
Removing and Inserting Physical Disks . . . . . . . . 114
MD3000 Maintenance Considerations . . . . . . . . . 114
MD3000 Cluster Configuration Guidelines for
Standalone Host Servers . . . . . . . . . . . . . . . . 115
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117

10 Contents

About This Guide 11
1
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.
MD Storage Manager is a graphical user interface (GUI) with wizard-guided
tools and a task-based structure designed to reduce the complexity of
installation, configuration, management, and diagnostic tasks.
MD Storage Manager software also contains an optional event monitoring
service that is used to send alerts when a critical problem with the storage
array occurs and a command line interface (CLI) to access functions
performed by MD Storage Manager.
This guide is intended for users who are already familiar with the basic
functions of their storage array. Any differences in certain functions between
supported operating systems are explained where applicable.
MD Storage Manager online help contains detailed answers to software-
related questions. You can access online help by clicking Help located at the
top right corner of the MD Storage Manager interface. Refer to your storage
array’s
Installation Guide for information on installing the MD Storage
Manager.
User Interface
The Storage Manager screen is divided into three parts:
•The Title Bar at the top of the screen displays the name of the application
and the Dell logo.
• Beneath the Title Bar is the
Array Selector , listing the MD Storage Array
that is currently selected. The icon next to the array’s name indicates its
condition. You can choose another array by clicking the down-arrow next to
the array’s name and highlighting a different array in the drop-down list.
Links to the right of the array name let you add or remove arrays from the
list of managed arrays. Links to the far right provide access to online help or
close the Storage Manager.

12 About This Guide
• 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. The following sections list some of the tasks you can perform under
each tab.
Summary Tab
• See the status of a storage array
• See the hardware components in a storage array
• See storage array capacity
• See hosts, mappings, and storage partitions
• See virtual disk groups and virtual disks
• Access links to online help, FAQs, and a tutorial about storage concepts
Configure Tab
•Configurehostaccess
•Createahostgroup
• Create hot spares
•Createvirtualdisks
• Create snapshot virtual disks (if enabled)
• Create virtual disk copies (if enabled)
• Create host-to-virtual disk mappings
Modify Tab
• Modify the host topology
• Rename and delete virtual disks
• Add free capacity to a disk group
• Change virtual disk ownership and the preferred path of virtual disks
• Modify a snapshot virtual disk (if enabled)
• Manage virtual disk copies (if enabled)
• Edit host-to-virtual disk mappings

About This Guide 13
•Replacephysicaldisks
• 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
• Set or change enclosure tags
• Set up e-mail alerts and SNMP alerts
• Synchronize controller clocks, change the network configuration, or
change battery settings
• Inherit system settings
• Change media scan settings
• Change the pre-read redundancy check settings
iSCSI Tab
• Set the authentication method supported by the target
• Define permissions for mutual authentication
• Set an alias for the target for identification
• Modify the discovery method for iSCSI targets
• Set the parameters for iSCSI host ports
• View or end iSCSI sessions
• View iSCSI statistics
NOTE: The iSCSI tab is shown only in the MD Storage Manager when the
controllers contain iSCSI host ports.
Support Tab
• Recover from a failure
• Gather support information

14 About This Guide
• View the storage array profile
• Download RAID controller, NVSRAM, and physical disk firmware
• Manage RAID controllers
• View online help
• Perform advanced support tasks
Other Information You May Need
CAUTION: For complete regulatory and safety information, see your Product
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.
• Dell™ PowerVault™ MD Installation Guide provides installation and
configuration instructions for both software and hardware.
•
Dell™ PowerVault™ MD Hardware Owner's Manual provides information
about the enclosure hardware.
•
Dell™ PowerVault™ MD Storage Manager CLI Guide provides information
about using the command line interface (CLI).
•
Dell™ PowerVault™ MD Resource CD contains all system documentation
and management tools.
•
Dell™ PowerVault™ MD Systems Support Matrix provides information on
supported software and hardware for MD systems. The document is
available at
support.dell.com .
• Dell PowerEdge
®
Cluster Documentation is available at support.dell.com .
A link to clustering documentation is also included on the
Resource CD
under
Product Documentation .
• Documentation for any components you purchased separately provides
information to configure and install these options.
• Release notes or readme files are included to provide last-minute updates
to the
enclosure or documentation or advanced technical reference
material intended for experienced users or technicians.
NOTE: Always check for updates on support.dell.com and read the updates
first because they often supersede information in other documents.

Storage Array 15
2
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.
Following is a list of terms that are used throughout this chapter:
• Physical Disk — Non-volatile, randomly-addressable device for storing
data.
•Host—
System that accesses a storage array and is mapped to virtual
disks.
• Host Group — Hosts that are logically associated and share access to the
same virtual disks.
• Host-Agent Software — Software installed on the host that provides in-
band management and topology discovery.
• Logical Unit Number (LUN) — Address that identifies individual virtual
disks within a storage array.
• Event Monitor — A
feature that, when enabled, monitors activity on
managed storage arrays and notifies a host or remote system when
critical problems occur.
• SNMP Alert — Alert (SNMP trap) that is sent from the event monitor to
an SNMP-enabled host.
Access Virtual Disk
Each RAID controller in an MD Storage Array maintains an access virtual
disk. The host-agent software uses the access virtual disk to communicate
management requests and event information between the storage
management station and the RAID controller module in an
in-band–managed
storage array. The access virtual disk is not available for application data storage.
The default LUN is 31.

16 Storage Array
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.
Out-of-Band and In-Band Management
You can manage a storage array in two ways:
• Out-of-band management
• In-band management
For out-of-band management, data is separate from commands and events.
Data travels through the host-to-controller interface, while commands and
events travel through the management port Ethernet cables.
When you use out-of-band management, you must set the network
configuration for each RAID controller module’s management Ethernet port,
including its Internet Protocol (IP) address, subnetwork mask (subnet mask),
and gateway. If you are using a Dynamic Host Configuration Protocol
(DHCP) server, you can enable automatic network configuration, but if you
are not using a DHCP server, you must enter the network configuration
manually.
NOTE: RAID controller module network configurations can be assigned using a
DHCP server (the default setting). However, if a DHCP server is not available and the
10-second selection period times out, the RAID controller modules use the
192.168.128.101 static IP address for controller 0. For controller 1, the RAID
controller modules use the 192.168.128.102 static IP address.
For in-band management, commands, events, and data travel through the
host-to-controller interface. Unlike out-of-band management, commands and
events are mixed with data.
For detailed information on setting up in-band and out-of-band management
see the Installation Guide.
NOTE: In-band management is not supported on systems running the Red Hat®
Enterprise Linux®3 operating system.

Storage Array 17
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—
including station IP address, subnet mask, and default gateway—is correct before
adding a new storage array using the Automatic option.
NOTE: For Linux, set the default gateway so that broadcast packets are sent to
255.255.255.255. For Red Hat®Enterprise Linux®, if no gateway exists on the
network, set the default gateway to the IP address of the NIC.
NOTE: MD Storage Manager uses TCP/UDP port 2463 for communication to the
MD Storage Array.
Automatic Discovery of Storage Arrays
The Automatic Discovery process sends out a broadcast message across the
local subnetwork (subnet) and adds any storage array that responds to the
message. The Automatic Discovery process finds both in-band and out-of-
band storage arrays.
Manual Addition of a Storage Array
Use Manual Addition if the storage array resides outside of the local subnet.
This process requires specific identification information to manually add a
storage array:
• To add a storage array that uses in-band management, specify the host
name or IP address of the host.
When adding a storage array using in-band management with iSCSI, a
session must first be established between the initiator on the host server
and the storage array. For more information, see "Configuring iSCSI" in
the
Modular Disk 3000i Systems Installation Guide.
The host agent must be restarted before in-band management
communication can be established. See "Starting or Restarting the Host-
Agent Software in Windows" on page 28 or "Starting or Restarting the
Host-Agent Software in Linux" on page 29.

18 Storage Array
• 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. A storage array name
has a 30-character limit. All leading and trailing spaces are deleted from the
name. A name can consist of letters, numbers, and the special characters
underscore (_), dash (–), and pound sign (#). No other special characters are
allowed.
To physically locate a storage array:
1
Click the Tools tab.
2 Click Blink and then click Blink Storage Array or Enclosures .
3 Select the storage array from the displayed list and click Blink .
The indicator light on the front of the storage array flashes.
4 Click Stop after you locate the array.
To rename the selected storage array:
1
Click the Tools tab.
2 Click Rename Storage Array .
3 Type a unique, meaningful name that is easy to understand and remember.
4 Click OK .
NOTE: Avoid arbitrary names or names that might lose meaning in the future.
Removing Storage Arrays
You can remove a storage array from the list of managed arrays if you no
longer want to manage it from a specific storage management station.
Removing a storage array does not affect the storage array or its data in any
way. Removing a storage array simply removes it from the list of storage arrays
that appear in the drop-down list in the Array Selector. If a storage array is
accidentally removed, it can be added again (see "Adding Storage Arrays" on
page 17).

Storage Array 19
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
array in MD Storage Manager. Following these steps ensures that you
complete all the basic steps to configure your storage array.
Initial setup tasks include:
1
Blink the Storage Array — Find the physical location of the storage array
on your network. The storage array can then be identified with a label.
2 Rename the Storage Array — Provide a unique and memorable name to
help you easily identify the storage array.
3 Set a Storage Array Password — Set a unique password to prevent
unapproved manipulation of the storage array, such as deletion of a virtual
disk.
4 Set up alert notifications — Enable e-mail and SNMP alerts to notify
administrators about storage array conditions that require attention. See
"Configuring Alert Notifications" on page 25 for more information.
a Configure Sender E-mail Settings — Provide the SMTP, e-mail
address, and contact information MD Storage Manager uses to send
e-mail alerts.
b Add or Edit E-mail Addresses — Provide information about accounts
that should receive e-mail–based alerts.
c Set up SNMP Alerts — Provide information about hosts that should
receive SNMP-based alerts.
5 Configure iSCSI Host Ports — Configure network parameters for the
iSCSI host ports on the RAID controller module(s).

20 Storage Array
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)
a Automatic (Simple) configuration
• Step 1: Automatic Configuration — See "Creating Disk Groups
and Virtual Disks" on page 54 for more information.
• Step 2: Create Host-to-Virtual Disk Mappings — See "Creating
Host-to-Virtual Disk Mappings" on page 60 for more information.
b Manual (Advanced) configuration
• Step 1: Create Virtual Disks — See "Manual Configuration" on
page 55 for more information.
• Step 2: Configure Hot Spare Physical Disks — See "Manually
Configuring Hot Spares" on page 59 for more information.
8 Manage iSCSI Settings — This option will be present only if your
controllers contain iSCSI host ports.
a Change Target Authentication — Choose the authentication methods
and permissions (if required) for an initiator to access the target.
b Enter Mutual Authentication Permissions — If initiators require
mutual authentication, you can enter permissions for the target to
access the initiator.
c Change Target Identification — Define an alias for the target for easy
identification.
d Change Target Discovery — Configure parameters for how the target
will be discovered on the network.
9 View and Enable Premium Features (Optional) — You may have
purchased premium features, including snapshot virtual disks and virtual
disk copies. See which premium features are currently available to you and
enable these features if they are currently turned off.
10 Configure Ethernet Management Ports (Optional) — Configure network
parameters for the Ethernet management ports managing a storage array
for out-of-band Ethernet connections.