Dell PowerVault MD3200 Series Manuale utente

Dell PowerVault MD3200

and MD3220 Storage Arrays

Owner’s Manual

Regulatory Model: E03J Series and E04J Series

Regulatory Type: E03J001 and E04J001

book.book Page 1 Tuesday, September 27, 2011 3:25 PM

Notes, Cautions, and Warnings

NOTE: A NOTE indicates important information that helps you make better use of

your computer.

CAUTION: A CAUTION indicates potential damage to hardware or loss of data if

instructions are not followed.

WARNING: A WARNING indicates a potential for property damage, personal

injury, or death.

____________________

Information in this publication is subject to change without notice.

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™, PowerVault™, and

OpenManage™ are trademarks of Dell Inc. Intel

is a registered trademarks of Intel Corporation in

the U.S. and other countries. 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. Red Hat®and Red Hat Enterprise Linux®are registered trademarks of Red

Hat, Inc. in the United States and other countries. SUSE®is a registered trademark of Novell, Inc. in

the United States and other countries.

Other trademarks and trade names may be used in this publication to refer to either the entities claiming

the marks and names or their products. Dell Inc. disclaims any proprietary interest in trademarks and

trade names other than its own.

Regulatory Model: E03J Series and E04J Series

Regulatory Type: E03J001 and E04J001

2011 - 09 Rev. A01

book.book Page 2 Tuesday, September 27, 2011 3:25 PM

Contents 3

Contents

1 Introduction . . . . . . . . . . . . . . . . . . . . . . . 19

About This Document . . . . . . . . . . . . . . . . . . 19

Inside the box of the Dell PowerVault MD3200

Series Storage Array. . . . . . . . . . . . . . . . . . . 20

MD3200 Series Storage Array . . . . . . . . . . . 20

Dell PowerVault Modular

Disk Storage Manager . . . . . . . . . . . . . . . 20

Other Information you May Need . . . . . . . . . . . . 20

2 Planning: About Your Storage Array . . . . 23

Overview . . . . . . . . . . . . . . . . . . . . . . . . . 23

Hardware Features . . . . . . . . . . . . . . . . . . . 24

Front-Panel Features and Indicators . . . . . . . 24

Back Panel Features and Indicators . . . . . . . . 27

Hard-Drive Indicator Patterns . . . . . . . . . . . . . . 28

Power Supply and Cooling Fan Features . . . . . . . . 29

Power Indicator Codes and Features . . . . . . . . . . 30

3 Planning: RAID Controller Modules . . . . 31

RAID Controller Modules . . . . . . . . . . . . . . . . 31

book.book Page 3 Tuesday, September 27, 2011 3:25 PM

4Contents

RAID Controller Module Connectors

and Features . . . . . . . . . . . . . . . . . . . . . . . 32

RAID Controller Module—Additional Features . . . . . 34

Battery Backup Unit . . . . . . . . . . . . . . . . 34

Storage Array Thermal Shutdown . . . . . . . . . 35

System Password Reset . . . . . . . . . . . . . . 35

Cache Functions and Features. . . . . . . . . . . . . . 36

Cache Mirroring. . . . . . . . . . . . . . . . . . . 36

Write-Back Cache . . . . . . . . . . . . . . . . . 36

Write-Through Cache. . . . . . . . . . . . . . . . 36

4 Planning: MD3200 Series Storage

Array Terms and Concepts . . . . . . . . . . . 37

Physical Disks, Virtual Disks, and Disk Groups . . . . . 37

Physical Disks . . . . . . . . . . . . . . . . . . . . 38

Physical Disk States . . . . . . . . . . . . . . . . 38

Self-Monitoring Analysis and

Reporting Technology. . . . . . . . . . . . . . . . 39

Virtual Disks and Disk Groups . . . . . . . . . . . 39

Virtual Disk States . . . . . . . . . . . . . . . . . 40

RAID Levels. . . . . . . . . . . . . . . . . . . . . . . . 40

RAID Level Usage . . . . . . . . . . . . . . . . . . 41

Segment Size. . . . . . . . . . . . . . . . . . . . . . . 43

Virtual Disk Operations . . . . . . . . . . . . . . . . . 43

Virtual Disk Initialization . . . . . . . . . . . . . . 43

Background Initialization . . . . . . . . . . . . . . 43

Foreground Initialization . . . . . . . . . . . . . . 43

Consistency Check . . . . . . . . . . . . . . . . . 44

Media Verification . . . . . . . . . . . . . . . . . 44

book.book Page 4 Tuesday, September 27, 2011 3:25 PM

Contents 5

Cycle Time . . . . . . . . . . . . . . . . . . . . . 44

Virtual Disk Operations Limit . . . . . . . . . . . . 45

Disk Group Operations. . . . . . . . . . . . . . . . . . 45

RAID Level Migration . . . . . . . . . . . . . . . . 45

Segment Size Migration . . . . . . . . . . . . . . 45

Virtual Disk Capacity Expansion . . . . . . . . . . 46

Disk Group Expansion . . . . . . . . . . . . . . . 46

Disk Group Defragmentation . . . . . . . . . . . . 47

Disk Group Operations Limit . . . . . . . . . . . . 47

RAID Background Operations Priority . . . . . . . . . 47

Virtual Disk Migration and Disk Roaming. . . . . . . . 48

Disk Migration . . . . . . . . . . . . . . . . . . . 48

Disk Roaming . . . . . . . . . . . . . . . . . . . . 50

Advanced Features . . . . . . . . . . . . . . . . . . . 50

Host Server-to-Virtual Disk Mapping. . . . . . . . 51

Host Types . . . . . . . . . . . . . . . . . . . . . 51

Snapshot Virtual Disks . . . . . . . . . . . . . . . 51

Snapshot Repository Virtual Disk. . . . . . . . . . 52

Virtual Disk Copy . . . . . . . . . . . . . . . . . . 53

Virtual Disk Recovery . . . . . . . . . . . . . . . . 54

Using Snapshot and Disk Copy Together. . . . . . 54

Multi-Path Software . . . . . . . . . . . . . . . . . . . 54

Preferred and Alternate Controllers

and Paths . . . . . . . . . . . . . . . . . . . . . . 55

Virtual Disk Ownership . . . . . . . . . . . . . . . 55

Load Balancing . . . . . . . . . . . . . . . . . . . . . 56

Monitoring MD3200 Series System

Performance . . . . . . . . . . . . . . . . . . . . . . . 57

book.book Page 5 Tuesday, September 27, 2011 3:25 PM

6Contents

5 Configuration: Overview . . . . . . . . . . . . 61

User Interface . . . . . . . . . . . . . . . . . . . . . . 61

Enterprise 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 . . . . . . . . . . . . . . 69

Naming or Renaming Storage Arrays. . . . . . . . 70

Setting a Password . . . . . . . . . . . . . . . . . 71

Viewing Storage Array Connections . . . . . . . . 72

Adding/Editing a Comment to an

Existing Storage Array . . . . . . . . . . . . . . . 73

Removing Storage Arrays. . . . . . . . . . . . . . 73

Enabling Premium Features. . . . . . . . . . . . . 74

Failover Alert Display . . . . . . . . . . . . . . . . 74

Changing the Cache Settings on the

Storage Array . . . . . . . . . . . . . . . . . . . . 75

Changing Expansion Enclosure ID Number . . . . 75

Changing the Enclosure Order in the

Physical Pane . . . . . . . . . . . . . . . . . . . . 75

Configuring Alert Notifications . . . . . . . . . . . . . 76

Configuring E-mail Alerts . . . . . . . . . . . . . . 77

Configuring SNMP Alerts . . . . . . . . . . . . . . 79

Battery Settings . . . . . . . . . . . . . . . . . . . . . 81

book.book Page 6 Tuesday, September 27, 2011 3:25 PM

Contents 7

Setting the Storage Array RAID Controller

Module Clocks . . . . . . . . . . . . . . . . . . . 82

7 Configuration: Event Monitor . . . . . . . . . 83

Enabling or Disabling the Event Monitor . . . . . . . . 84

Windows . . . . . . . . . . . . . . . . . . . . . . 84

Linux . . . . . . . . . . . . . . . . . . . . . . . . 84

8 Configuration: About Your Host . . . . . . . . 85

Configuring Host Access . . . . . . . . . . . . . . . . 85

Using the Mappings Tab . . . . . . . . . . . . . . . . . 86

Defining a Host . . . . . . . . . . . . . . . . . . . 86

Removing Host Access . . . . . . . . . . . . . . . . . 88

Managing Host Groups . . . . . . . . . . . . . . . . . 88

Creating a Host Group . . . . . . . . . . . . . . . 88

Moving a Host to a Different Host Group. . . . . . 89

Removing a Host Group. . . . . . . . . . . . . . . 90

Host Topology. . . . . . . . . . . . . . . . . . . . 90

Starting or Stopping the Host

Context Agent. . . . . . . . . . . . . . . . . . . . 91

I/O Data Path Protection . . . . . . . . . . . . . . . . . 92

Managing Host Port Identifiers . . . . . . . . . . . . . 93

9 Configuration: Disk Groups and

Virtual Disks . . . . . . . . . . . . . . . . . . . . . . 95

Creating Disk Groups and Virtual Disks. . . . . . . . . 95

book.book Page 7 Tuesday, September 27, 2011 3:25 PM

8Contents

Creating Disk Groups . . . . . . . . . . . . . . . . 96

Locating a Disk Group . . . . . . . . . . . . . . . 98

Creating Virtual Disks . . . . . . . . . . . . . . . . 98

Changing the Virtual Disk

Modification Priority . . . . . . . . . . . . . . . 100

Changing the Virtual Disk Cache Settings . . . . 101

Changing the Segment Size of

a Virtual Disk . . . . . . . . . . . . . . . . . . . 103

Changing the I/O Type. . . . . . . . . . . . . . . 104

Choosing an Appropriate Physical Disk Type . . . . . 105

Physical Disk Security with Self

Encrypting Disk . . . . . . . . . . . . . . . . . . . . 106

Creating a Security Key. . . . . . . . . . . . . . 108

Changing a Security Key . . . . . . . . . . . . . 110

Saving a Security Key. . . . . . . . . . . . . . . 111

Validate Security Key . . . . . . . . . . . . . . . 112

Unlocking Secure Physical Disks . . . . . . . . . 113

Erasing Secure Physical Disks . . . . . . . . . . 113

Configuring Hot Spare Physical Disks. . . . . . . . . 114

Hot Spares and Rebuild. . . . . . . . . . . . . . 115

Global Hot Spares. . . . . . . . . . . . . . . . . 116

Hot Spare Operation . . . . . . . . . . . . . . . 116

Hot Spare Drive Protection . . . . . . . . . . . . 116

Enclosure Loss Protection . . . . . . . . . . . . . . . 117

Host-to-Virtual Disk Mapping . . . . . . . . . . . . . 119

Creating Host-to-Virtual Disk Mappings . . . . . 119

Modifying and Removing Host-to-Virtual

Disk Mapping . . . . . . . . . . . . . . . . . . . 121

Changing Controller Ownership of the

Virtual Disk . . . . . . . . . . . . . . . . . . . . 122

Removing Host-to-Virtual Disk Mapping . . . . . 122

book.book Page 8 Tuesday, September 27, 2011 3:25 PM

Contents 9

Changing the RAID Controller Module

Ownership of a Disk Group . . . . . . . . . . . . . 123

Changing the RAID Level of a Disk Group . . . . . 124

Removing a Host-to-Virtual Disk Mapping

Using Linux DMMP . . . . . . . . . . . . . . . . . 124

Restricted Mappings. . . . . . . . . . . . . . . . . . . 126

Changing the RAID Controller Module

Ownership of a Virtual Disk or a Disk Group . . . . 127

Changing the RAID Level of a Disk Group. . . . . . . . 129

Storage Partitioning . . . . . . . . . . . . . . . . . . . 130

Disk Group and Virtual Disk Expansion . . . . . . . . . 131

Disk Group Expansion . . . . . . . . . . . . . . . 131

Virtual Disk Expansion . . . . . . . . . . . . . . . 132

Using Free Capacity . . . . . . . . . . . . . . . . 132

Using Unconfigured Capacity . . . . . . . . . . . 133

Disk Group Migration . . . . . . . . . . . . . . . . . . 133

Export Disk Group. . . . . . . . . . . . . . . . . . 133

Exporting a Disk Group . . . . . . . . . . . . . . . 134

Import Disk Group . . . . . . . . . . . . . . . . . . . . 134

Importing a Disk Group . . . . . . . . . . . . . . . 134

Storage Array Media Scan . . . . . . . . . . . . . . . 136

Changing Media Scan Settings . . . . . . . . . . 136

Suspending the Media Scan . . . . . . . . . . . . 137

10 Configuration: Premium Feature—

Snapshot Virtual Disks . . . . . . . . . . . . . 139

Scheduling a Snapshot Virtual Disk. . . . . . . . . . . 140

book.book Page 9 Tuesday, September 27, 2011 3:25 PM

10 Contents

Common Reasons for Scheduling a

Snapshot Virtual Disk . . . . . . . . . . . . . . . 140

Guidelines for Creating

Snapshot Schedules . . . . . . . . . . . . . . . 141

Enabling and Disabling Snapshot

Schedules . . . . . . . . . . . . . . . . . . . . . 142

Creating a Snapshot Virtual Disk Using

the Simple Path . . . . . . . . . . . . . . . . . . . . 142

About the Simple Path . . . . . . . . . . . . . . 143

Preparing Host Servers to Create the

Snapshot Using the Simple Path . . . . . . . . . 143

Creating a Snapshot Virtual Disk Using the

Advanced Path . . . . . . . . . . . . . . . . . . . . . 146

About the Advanced Path. . . . . . . . . . . . . 146

Preparing Host Servers to Create the

Snapshot Using the Advanced Path . . . . . . . 147

Creating the Snapshot Using

the Advanced Path . . . . . . . . . . . . . . . . 149

Specifying Snapshot Virtual Disk Names . . . . . . . 151

Snapshot Repository Capacity. . . . . . . . . . . . . 152

Disabling a Snapshot Virtual Disk. . . . . . . . . . . 155

Preparing Host Servers to Re-create a

Snapshot Virtual Disk . . . . . . . . . . . . . . . 156

Re-creating Snapshot Virtual Disks . . . . . . . . . . 157

Snapshot Rollback . . . . . . . . . . . . . . . . . . . 157

Rules and Guidelines for Performing a

Snapshot Rollback . . . . . . . . . . . . . . . . 158

Protecting Against a Failed

Snapshot Rollback . . . . . . . . . . . . . . . . 159

Previous Versions of the

MD Storage Manager. . . . . . . . . . . . . . . 159

Starting a Snapshot Rollback . . . . . . . . . . . 159

book.book Page 10 Tuesday, September 27, 2011 3:25 PM

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