Dell PowerVault MD3620f User manual

Dell PowerVault Modular Disk

Storage Arrays

CLI Guide

book.book Page 1 Wednesday, June 8, 2011 12:20 PM

Notes and Cautions

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.

____________________

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, and PowerVault™ are trademarks of Dell Inc.

Microsoft®, MS-DOS®, Internet Explorer®, Windows®, and Windows Server®are either trademarks

or registered trademarks of Microsoft Corporation in the United States and/or 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.

2011 - 06 Rev. A02

book.book Page 2 Wednesday, June 8, 2011 12:20 PM

Contents 3

Contents

1 About the Command Line Interface. . . . . 15

How to Use the Command Line Interface . . . . . . . . 16

Usage Notes . . . . . . . . . . . . . . . . . . . . 17

CLI Commands . . . . . . . . . . . . . . . . . . . 18

Command Line Parameters. . . . . . . . . . . . . 20

Formatting Considerations . . . . . . . . . . . . . . . 26

Detailed Error Reporting. . . . . . . . . . . . . . . . . 26

Exit Status . . . . . . . . . . . . . . . . . . . . . . . . 27

Usage Examples . . . . . . . . . . . . . . . . . . . . . 29

2 About the Script Commands . . . . . . . . . . 31

Script Command Structure . . . . . . . . . . . . . . . 32

Script Command Synopsis. . . . . . . . . . . . . . . . 34

Recurring Syntax Elements . . . . . . . . . . . . . . . 36

Usage Guidelines . . . . . . . . . . . . . . . . . . . . 42

Adding Comments to a Script File . . . . . . . . . . . . 43

3 Configuring a Storage Array . . . . . . . . . . 45

Configuring a Storage Array. . . . . . . . . . . . . . . 46

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4Contents

Determining What is on Your Storage Array . . . . 46

Saving a Configuration to a File. . . . . . . . . . . 49

Using the Create Virtual Disk Command . . . . . . 50

Using the Auto Configure Command . . . . . . . . 54

Modifying Your Configuration . . . . . . . . . . . . . . 57

Setting the Storage Array Password . . . . . . . . 58

Setting Up SMTP and SNMP Alerts . . . . . . . . 58

Setting the RAID Controller Module Clocks . . . . 59

Setting the Storage Array Host Type . . . . . . . . 59

Setting Modification Priority . . . . . . . . . . . . 60

Assigning Global Hot Spares . . . . . . . . . . . . 61

4 Using the Snapshot Feature . . . . . . . . . 63

Using Host Servers to Create an Initial

Snapshot Virtual Disk . . . . . . . . . . . . . . . . . . 65

Creating a Snapshot Virtual Disk . . . . . . . . . . . . 66

Enabling the Snapshot Virtual Disk Feature . . . . 67

Creating a Snapshot Virtual Disk with

User-Assigned Physical Disks . . . . . . . . . . . 67

Preparing Host Servers to Create an

Initial Snapshot Virtual Disk . . . . . . . . . . . . 67

Creating the Initial Snapshot Virtual Disk. . . . . . 68

Creating a Snapshot Virtual Disk

with Software-Assigned Physical Disks . . . . . . 70

Creating a Snapshot Virtual Disk by

Specifying a Number of Physical Disks. . . . . . . 71

User-Defined Parameters. . . . . . . . . . . . . . 72

Names of Snapshot Virtual Disks and

Repository Virtual Disks. . . . . . . . . . . . . . . 74

Changing Snapshot Virtual Disk Settings . . . . . . . . 75

Stopping and Deleting a Snapshot Virtual Disk . . . . . 76

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Contents 5

Re-creating the Snapshot Virtual Disk . . . . . . . 77

Preparing Host Servers to Re-create a

Snapshot Virtual Disk. . . . . . . . . . . . . . . . 77

Re-creating a Snapshot Virtual Disk . . . . . . . . 78

5 Using the Virtual Disk Copy Feature . . . . 79

Creating a Virtual Disk Copy. . . . . . . . . . . . . . . 80

Enabling the Virtual Disk Copy Feature. . . . . . . 81

Determining Virtual Disk Copy Candidates . . . . . 81

Creating a Virtual Disk Copy . . . . . . . . . . . . 82

Preparing Host Servers to Create a

Virtual Disk Copy . . . . . . . . . . . . . . . . . . 82

Copying the Virtual Disk . . . . . . . . . . . . . . 83

Viewing Virtual Disk Copy Properties. . . . . . . . . . 84

Changing Virtual Disk Copy Settings . . . . . . . . . . 85

Recopying a Virtual Disk . . . . . . . . . . . . . . . . 87

Preparing Host Servers to Recopy

a Virtual Disk . . . . . . . . . . . . . . . . . . . . 87

Recopying the Virtual Disk . . . . . . . . . . . . . 88

Stopping a Virtual Disk Copy . . . . . . . . . . . . . . 89

Removing Copy Pairs . . . . . . . . . . . . . . . . . . 90

Interaction With Other Features. . . . . . . . . . . . . 90

Storage Partitioning . . . . . . . . . . . . . . . . 91

Snapshot Virtual Disks . . . . . . . . . . . . . . . 91

6 Using the Remote Replication

Premium Feature . . . . . . . . . . . . . . . . . . . 93

How Remote Replication Works . . . . . . . . . . . . 94

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6Contents

Replication Repository Virtual Disks . . . . . . . . 94

Replication Relationships . . . . . . . . . . . . . . 95

Data Replication . . . . . . . . . . . . . . . . . . 95

Link Interruptions or Secondary

Virtual Disk Errors. . . . . . . . . . . . . . . . . . 97

Resynchronization . . . . . . . . . . . . . . . . . 98

Creating a Remote Replicated Pair . . . . . . . . . . . 99

Performance Considerations . . . . . . . . . . . 100

Enabling the Remote Replication

Premium Feature . . . . . . . . . . . . . . . . . 101

Activating the Remote Replication

Premium Feature . . . . . . . . . . . . . . . . . 101

Determining Candidates for a

Remote Replicated Pair. . . . . . . . . . . . . . 105

Creating a Remote Replicated Pair . . . . . . . . 105

Changing Remote Replication Settings . . . . . . . . 107

Suspending and Resuming a

Replication Relationship. . . . . . . . . . . . . . . . 108

Removing a Replication Relationship . . . . . . . . . 110

Deleting a Primary Virtual Disk or a

Secondary Virtual Disk . . . . . . . . . . . . . . . . 110

Disabling the Remote Replication

Premium Feature . . . . . . . . . . . . . . . . . . . . 111

Deactivating the Remote Replication

Premium Feature . . . . . . . . . . . . . . . . . . . . 111

Interaction with Other Premium Features. . . . . . . 111

Snapshot Virtual Disks . . . . . . . . . . . . . . 112

Virtual Disk Copy . . . . . . . . . . . . . . . . . 112

Storage Partitioning. . . . . . . . . . . . . . . . 113

Virtual Disk Expansion . . . . . . . . . . . . . . 113

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Contents 7

7 Maintaining a Storage Array. . . . . . . . . 115

Routine Maintenance . . . . . . . . . . . . . . . . . . 115

Running a Media Scan . . . . . . . . . . . . . . . 115

Running a Consistency Check . . . . . . . . . . . 117

Resetting a RAID Controller Module . . . . . . . . 118

Enabling RAID Controller

Module Data Transfer . . . . . . . . . . . . . . . 118

Resetting Battery Age . . . . . . . . . . . . . . . 118

Removing Persistent Reservations . . . . . . . . . 118

Synchronizing RAID

Controller Module Clocks. . . . . . . . . . . . . . 119

Locating Physical Disks. . . . . . . . . . . . . . . 119

Performance Tuning . . . . . . . . . . . . . . . . . . . 120

Monitoring Performance . . . . . . . . . . . . . . 120

Changing RAID Levels . . . . . . . . . . . . . . . 121

Changing Segment Size . . . . . . . . . . . . . . 121

Defragmenting a Disk Group . . . . . . . . . . . . 122

Troubleshooting and Diagnostics . . . . . . . . . . . . 123

Collecting Physical Disk Data. . . . . . . . . . . . 123

Diagnosing a RAID Controller Module . . . . . . . 123

Recovery Operations. . . . . . . . . . . . . . . . . . . 124

Setting RAID Controller

Module Operational Mode . . . . . . . . . . . . . 124

Changing RAID Controller

Module Ownership . . . . . . . . . . . . . . . . . 126

Initializing a Physical Disk . . . . . . . . . . . . . 126

Reconstructing a Physical Disk. . . . . . . . . . . 127

Initializing a Virtual Disk . . . . . . . . . . . . . . 127

Redistributing Virtual Disks. . . . . . . . . . . . . 128

book.book Page 7 Wednesday, June 8, 2011 12:20 PM

8Contents

8 Script Commands. . . . . . . . . . . . . . . . . . 129

Command Formatting Rules . . . . . . . . . . . . . . 130

Firmware Compatibility Levels . . . . . . . . . . . . 132

Commands Listed by Function . . . . . . . . . . . . . 132

Disk Group Commands . . . . . . . . . . . . . . 132

Enclosure Commands. . . . . . . . . . . . . . . 133

Host Topology Commands . . . . . . . . . . . . 133

iSCSI Commands . . . . . . . . . . . . . . . . . 134

Physical Disk Commands . . . . . . . . . . . . . 134

RAID Controller Module Commands . . . . . . . 135

Remote Replication Commands . . . . . . . . . 136

Session Command . . . . . . . . . . . . . . . . 136

Show String Command . . . . . . . . . . . . . . 136

Snapshot Commands . . . . . . . . . . . . . . . 137

Storage Array Commands . . . . . . . . . . . . 137

Virtual Disk Commands . . . . . . . . . . . . . . 139

Virtual Disk Copy Commands . . . . . . . . . . . 139

Commands Listed Alphabetically . . . . . . . . . . . 140

Activate Remote Replication Feature. . . . . . . 140

Activate Storage Array Firmware. . . . . . . . . 144

Autoconfigure Storage Array . . . . . . . . . . . 144

Autoconfigure Storage Array Hot Spares . . . . 147

Check Remote Replication Status . . . . . . . . 147

Check Virtual Disk Consistency. . . . . . . . . . 148

Clear Physical Disk Port Statistics . . . . . . . . 149

Clear Storage Array Configuration . . . . . . . . 150

Clear Storage Array Event Log . . . . . . . . . . 151

Clear Storage Array

Firmware Pending Area. . . . . . . . . . . . . . 151

Clear Virtual Disk Reservations . . . . . . . . . . 152

Clear Virtual Disk Unreadable Sectors . . . . . . 153

book.book Page 8 Wednesday, June 8, 2011 12:20 PM

Contents 9

Create Disk Group . . . . . . . . . . . . . . . . . 154

Create Host . . . . . . . . . . . . . . . . . . . . . 159

Create Host Group . . . . . . . . . . . . . . . . . 160

Create Host Port . . . . . . . . . . . . . . . . . . 160

Create iSCSI Initiator . . . . . . . . . . . . . . . . 162

Create RAID Virtual Disk

(Automatic Physical Disk Select) . . . . . . . . . . 162

Create RAID Virtual Disk

(Free Capacity Base Select) . . . . . . . . . . . . 166

Create RAID Virtual Disk

(Manual Physical Disk Select) . . . . . . . . . . . 169

Create Remote Replication . . . . . . . . . . . . . 173

Create Snapshot Virtual Disk . . . . . . . . . . . . 175

Create Storage Array Security Key. . . . . . . . . 181

Create Virtual Disk Copy . . . . . . . . . . . . . . 183

Deactivate Remote Replication . . . . . . . . . . 185

Delete Disk Group . . . . . . . . . . . . . . . . . 186

Delete Host . . . . . . . . . . . . . . . . . . . . . 186

Delete Host Group . . . . . . . . . . . . . . . . . 186

Delete Host Port . . . . . . . . . . . . . . . . . . 188

Delete iSCSI Initiator . . . . . . . . . . . . . . . . 189

Delete Virtual Disk . . . . . . . . . . . . . . . . . 189

Diagnose RAID Controller Module . . . . . . . . . 190

Diagnose Remote Replication . . . . . . . . . . . 193

Disable Storage Array Feature . . . . . . . . . . . 193

Download Enclosure

Management Module Firmware . . . . . . . . . . 194

Download Physical Disk Firmware . . . . . . . . . 195

Download Storage

Array Firmware/NVSRAM . . . . . . . . . . . . . 197

Download Storage

Array Physical Disk Firmware . . . . . . . . . . . 198

Download Storage Array NVSRAM . . . . . . . . 199

Enable Disk Group Security . . . . . . . . . . . . 199

book.book Page 9 Wednesday, June 8, 2011 12:20 PM

10 Contents

Enable RAID Controller

Module Data Transfer. . . . . . . . . . . . . . . 201

Enable Storage Array Feature . . . . . . . . . . 201

Recopy Virtual Disk Copy . . . . . . . . . . . . . 202

Re-create Remote Replication

Repository Virtual Disk . . . . . . . . . . . . . . 204

Re-create Snapshot. . . . . . . . . . . . . . . . 206

Remove Remote Replication . . . . . . . . . . . 209

Remove Virtual Disk Copy. . . . . . . . . . . . . 210

Remove Virtual Disk LUN Mapping . . . . . . . . 211

Repair Virtual Disk Consistency . . . . . . . . . 212

Replace Physical Disk. . . . . . . . . . . . . . . 213

Reset RAID Controller Module . . . . . . . . . . 214

Reset Storage Array Battery Install Date. . . . . 215

Reset Storage Array iSCSI Baseline . . . . . . . 216

Reset Storage Array SAS PHY Baseline . . . . . 216

Reset Storage Array

Virtual Disk Distribution . . . . . . . . . . . . . . 217

Resume Remote Replication . . . . . . . . . . . 217

Revive Disk Group. . . . . . . . . . . . . . . . . 218

Revive Physical Disk . . . . . . . . . . . . . . . 219

Save Enclosure Log Data . . . . . . . . . . . . . 219

Save Physical Disk Channel

Fault Isolation Diagnostic Status . . . . . . . . . 220

Save Physical Disk Log . . . . . . . . . . . . . . 221

Save RAID Controller Module NVSRAM . . . . . 221

Save Storage Array Configuration . . . . . . . . 222

Save Storage Array Events . . . . . . . . . . . . 223

Save Storage Array iSCSI Statistics . . . . . . . 224

Save Storage Array Performance Statistics . . . . . 225

Save Storage Array SAS PHY Counts . . . . . . 225

Save Storage Array State Capture . . . . . . . . 226

Save Storage Array Support Data . . . . . . . . 226

Set Disk Group . . . . . . . . . . . . . . . . . . 227

book.book Page 10 Wednesday, June 8, 2011 12:20 PM

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