Dell PowerVault MD3620i Manuale utente

Dell PowerVault MD3600i and

MD3620i 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 3:13 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 3:13 PM

Contents 3

Contents

1 Introduction . . . . . . . . . . . . . . . . . . . . . . . 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 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

book.book Page 3 Tuesday, September 27, 2011 3:13 PM

4Contents

3 Planning: RAID Controller Modules. . . . 31

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

RAID Controller Module Connectors

and Features . . . . . . . . . . . . . . . . . . . . . . . 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 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. . . . . . . . . . . . . . . . . . . . . . . . 41

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

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

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

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

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

book.book Page 4 Tuesday, September 27, 2011 3:13 PM

Contents 5

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

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

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

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

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

Segment Size Migration . . . . . . . . . . . . . . 46

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

Host Server-to-Virtual Disk Mapping. . . . . . . . 50

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

Advanced Features . . . . . . . . . . . . . . . . . . . 51

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

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

Virtual Disk Copy . . . . . . . . . . . . . . . . . . 52

Virtual Disk Recovery . . . . . . . . . . . . . . . . 53

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

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

Preferred and Alternate Controllers

and Paths . . . . . . . . . . . . . . . . . . . . . . 54

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

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

Monitoring MD3600i Series System

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

book.book Page 5 Tuesday, September 27, 2011 3:13 PM

6Contents

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

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

Enterprise Management Window . . . . . . . . . 62

Array Management Window . . . . . . . . . . . . 63

6 Configuration: About Your

Storage Array . . . . . . . . . . . . . . . . . . . . . 67

Out-of-Band and In-Band Management . . . . . . . . . 67

Storage Arrays . . . . . . . . . . . . . . . . . . . . . . 68

Adding Storage Arrays . . . . . . . . . . . . . . . 68

Setting Up Your Storage Array . . . . . . . . . . . 70

Locating Storage Arrays . . . . . . . . . . . . . . 72

Naming or Renaming Storage Arrays. . . . . . . . 72

Setting a Password . . . . . . . . . . . . . . . . . 73

Viewing Storage Array Connections . . . . . . . . 75

Adding/Editing a Comment to an

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

Removing Storage Arrays. . . . . . . . . . . . . . 76

Enabling Premium Features. . . . . . . . . . . . . 76

Displaying Failover Alert . . . . . . . . . . . . . . 77

Changing the Cache Settings on

the Storage Array . . . . . . . . . . . . . . . . . . 77

Changing Expansion Enclosure

ID Numbers . . . . . . . . . . . . . . . . . . . . . 78

Changing the Enclosure Order in the

Physical Pane . . . . . . . . . . . . . . . . . . . . 78

Configuring Alert Notifications . . . . . . . . . . . . . 79

Configuring E-mail Alerts . . . . . . . . . . . . . . 79

Configuring SNMP Alerts . . . . . . . . . . . . . . 82

Battery Settings . . . . . . . . . . . . . . . . . . . . . 83

book.book Page 6 Tuesday, September 27, 2011 3:13 PM

Contents 7

Setting the Storage Array RAID Controller

Module Clocks . . . . . . . . . . . . . . . . . . . 84

7 Configuration: Using iSCSI . . . . . . . . . . . 87

Changing the iSCSI Target Authentication . . . . . . . 87

Entering Mutual Authentication Permissions. . . . . . 88

Creating CHAP Secrets . . . . . . . . . . . . . . . . . 88

Initiator CHAP Secret. . . . . . . . . . . . . . . . 89

Target CHAP Secret . . . . . . . . . . . . . . . . 89

Valid Characters for CHAP Secrets . . . . . . . . 89

Changing the iSCSI Target Identification . . . . . . . . 90

Changing the iSCSI Target Discovery Settings . . . . . 90

Configuring the iSCSI Host Ports . . . . . . . . . . . . 91

Advanced iSCSI Host Ports Settings . . . . . . . . . . 93

Viewing or Ending an iSCSI Session . . . . . . . . . . 94

Viewing iSCSI Statistics and Setting

Baseline Statistics. . . . . . . . . . . . . . . . . . . . 95

Edit, Remove, or Rename Host Topology . . . . . . . . 96

8 Configuration: Event Monitor . . . . . . . . . 97

Enabling or Disabling the Event Monitor . . . . . . . . 98

Windows . . . . . . . . . . . . . . . . . . . . . . 98

Linux . . . . . . . . . . . . . . . . . . . . . . . . 98

book.book Page 7 Tuesday, September 27, 2011 3:13 PM

8Contents

9 Configuration: About Your Host . . . . . . . 99

Configuring Host Access. . . . . . . . . . . . . . . . . 99

Using the Mappings Tab . . . . . . . . . . . . . . . . 100

Defining a Host . . . . . . . . . . . . . . . . . . 101

Removing Host Access. . . . . . . . . . . . . . . . . 102

Managing Host Groups. . . . . . . . . . . . . . . . . 103

Creating a Host Group . . . . . . . . . . . . . . 103

Moving a Host to a Different

Host Group . . . . . . . . . . . . . . . . . . . . 104

Removing a Host Group . . . . . . . . . . . . . . 105

Host Topology . . . . . . . . . . . . . . . . . . . 105

Starting or Stopping the Host

Context Agent . . . . . . . . . . . . . . . . . . . 106

I/O Data Path Protection . . . . . . . . . . . . . . . . 107

Managing Host Port Identifiers . . . . . . . . . . . . 108

10 Configuration: Disk Groups

and Virtual Disks . . . . . . . . . . . . . . . . . . 111

Creating Disk Groups and Virtual Disks . . . . . . . . 111

Creating Disk Groups . . . . . . . . . . . . . . . 112

Locating a Disk Group . . . . . . . . . . . . . . 114

Creating Virtual Disks . . . . . . . . . . . . . . . 114

Changing the Virtual Disk

Modification Priority . . . . . . . . . . . . . . . 116

Changing the Virtual Disk Cache Settings . . . . 117

Changing the Segment Size of a

Virtual Disk . . . . . . . . . . . . . . . . . . . . 119

Changing the I/O Type. . . . . . . . . . . . . . . 120

book.book Page 8 Tuesday, September 27, 2011 3:13 PM

Contents 9

Choosing an Appropriate Physical Disk Type . . . . . . 121

Physical Disk Security with Self

Encrypting Disk . . . . . . . . . . . . . . . . . . . . . 121

Creating a Security Key. . . . . . . . . . . . . . . 124

Changing a Security Key . . . . . . . . . . . . . . 126

Saving a Security Key . . . . . . . . . . . . . . . 128

Validate Security Key . . . . . . . . . . . . . . . . 129

Unlocking Secure Physical Disks. . . . . . . . . . 129

Erasing Secure Physical Disks . . . . . . . . . . . 130

Configuring Hot Spare Physical Disks . . . . . . . . . 130

Hot Spares and Rebuild. . . . . . . . . . . . . . . 132

Global Hot Spares . . . . . . . . . . . . . . . . . 132

Hot Spare Operation . . . . . . . . . . . . . . . . 133

Hot Spare Drive Protection . . . . . . . . . . . . . 133

Enclosure Loss Protection. . . . . . . . . . . . . . . . 134

Host-to-Virtual Disk Mapping . . . . . . . . . . . . . . 135

Creating Host-to-Virtual Disk Mappings . . . . . . 136

Modifying and Removing Host-to-Virtual

Disk Mapping . . . . . . . . . . . . . . . . . . . . 137

Changing Controller Ownership of the

Virtual Disk . . . . . . . . . . . . . . . . . . . . . 138

Removing Host-to-Virtual Disk Mapping . . . . . . 139

Changing the RAID Controller Module

Ownership of a Disk Group . . . . . . . . . . . . . 139

Changing the RAID Level of a Disk Group . . . . . 141

Removing a Host-to-Virtual Disk Mapping

Using Linux DMMP . . . . . . . . . . . . . . . . . 141

Restricted Mappings. . . . . . . . . . . . . . . . . . . 143

Changing the RAID Controller Module

Ownership of a Virtual Disk or a Disk Group . . . . 144

Changing the RAID Level of a Disk Group. . . . . . . . 146

book.book Page 9 Tuesday, September 27, 2011 3:13 PM

10 Contents

Storage Partitioning . . . . . . . . . . . . . . . . . . 147

Disk Group and Virtual Disk Expansion . . . . . . . . 148

Disk Group Expansion. . . . . . . . . . . . . . . 148

Virtual Disk Expansion . . . . . . . . . . . . . . 149

Using Free Capacity. . . . . . . . . . . . . . . . 149

Using Unconfigured Capacity. . . . . . . . . . . 149

Disk Group Migration . . . . . . . . . . . . . . . . . 150

Export Disk Group . . . . . . . . . . . . . . . . . 150

Exporting a Disk Group . . . . . . . . . . . . . . 151

Import Disk Group . . . . . . . . . . . . . . . . . . . 151

Importing a Disk Group . . . . . . . . . . . . . . 151

Storage Array Media Scan. . . . . . . . . . . . . . . 152

Changing Media Scan Settings. . . . . . . . . . 153

Suspending the Media Scan . . . . . . . . . . . 154

11 Configuration: Premium Feature—

Snapshot Virtual Disks . . . . . . . . . . . . . 155

Scheduling a Snapshot Virtual Disk. . . . . . . . . . 157

Common Reasons for Scheduling a

Snapshot Virtual Disk . . . . . . . . . . . . . . . 157

Guidelines for Creating Snapshot

Schedules . . . . . . . . . . . . . . . . . . . . . 158

Enabling and Disabling Snapshot

Schedules . . . . . . . . . . . . . . . . . . . . . 158

Creating a Snapshot Virtual Disk Using

the Simple Path . . . . . . . . . . . . . . . . . . . . 159

About the Simple Path . . . . . . . . . . . . . . 159

Preparing Host Servers to Create the

Snapshot Using the Simple Path . . . . . . . . . 160

book.book Page 10 Tuesday, September 27, 2011 3:13 PM

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