Dell OpenManage Server Administrator Version 7.2 User manual

Server Administrator Storage

Management

User’s Guide

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.

____________________

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.

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. Microsoft

®

, Windows

®

, and Windows Server

®

are either

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

countries. Red Hat Enterprise Linux

®

and Enterprise Linux

®

are registered trademarks of Red Hat,

Inc. in the United States and/or other countries. Novell

®

is a registered trademark and SUSE ™ is a

trademark of Novell Inc. VMware

®

is a registered trademarks or trademarks of VMWare, Inc. in the

United States or other countries.

Server Administrator includes software developed by the Apache Software Foundation

(www.apache.org). Server Administrator utilizes the OverLIB JavaScript library. This library can be

obtained from www.bosrup.com.

Other trademarks and trade names may be used in this document 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.

2012 - 12

Contents 3

Contents

1Overview . . . . . . . . . . . . . . . . . . . . . . . . . 21

What’s New in this Release? . . . . . . . . . . . . . . 21

Before Installing Storage Management

. . . . . . . . . 22

Version Requirements for Controller Firmware

and Drivers

. . . . . . . . . . . . . . . . . . . . . 22

Supported Controllers

. . . . . . . . . . . . . . . . . . 23

Supported Enclosures . . . . . . . . . . . . . . . . . . 24

Support for Disk and Volume Management

. . . . . . . 24

2 Getting Started . . . . . . . . . . . . . . . . . . . . 25

Launching Storage Management . . . . . . . . . . . . 26

Microsoft Windows

. . . . . . . . . . . . . . . . . 26

Linux and any Remote System

. . . . . . . . . . . 26

User Privileges

. . . . . . . . . . . . . . . . . . . . . . 26

Using the Graphical User Interface

. . . . . . . . . . . 27

Storage Object

. . . . . . . . . . . . . . . . . . . 27

Health Subtab

. . . . . . . . . . . . . . . . . . . . 27

Information/Configuration Subtab

. . . . . . . . . 27

Drop-down Menus and Wizards

for Running Tasks . . . . . . . . . . . . . . . . . . 27

Using the Storage Management Command Line

Interface

. . . . . . . . . . . . . . . . . . . . . . . . . 28

Displaying the Online Help

. . . . . . . . . . . . . . . 28

4 Contents

Common Storage Tasks . . . . . . . . . . . . . . . . . 28

3 Understanding RAID Concepts . . . . . . . 31

What Is RAID? . . . . . . . . . . . . . . . . . . . . . . 31

Hardware and Software RAID

. . . . . . . . . . . 31

RAID Concepts

. . . . . . . . . . . . . . . . . . . 32

RAID Levels . . . . . . . . . . . . . . . . . . . . . 33

Organizing Data Storage for Availability

and Performance

. . . . . . . . . . . . . . . . . . . . . 33

Choosing RAID Levels and Concatenation . . . . . . . 34

Concatenation

. . . . . . . . . . . . . . . . . . . 35

RAID Level 0 (Striping) . . . . . . . . . . . . . . . 36

RAID Level 1 (Mirroring)

. . . . . . . . . . . . . . 38

RAID Level 5 (Striping with distributed parity)

. . . 39

RAID Level 6 (Striping with additional

distributed parity) . . . . . . . . . . . . . . . . . . 40

RAID Level 50 (Striping over RAID 5 sets) . . . . . 42

RAID Level 60 (Striping over RAID 6 sets)

. . . . . 44

RAID Level 10 (Striping over mirror sets)

. . . . . . 46

RAID Level 1-Concatenated

(Concatenated mirror) . . . . . . . . . . . . . . . 48

Comparing RAID Level and Concatenation

Performance

. . . . . . . . . . . . . . . . . . . . . . . 49

No-RAID

. . . . . . . . . . . . . . . . . . . . . . . . . 51

4 Quick Access to Storage Status

and Tasks

. . . . . . . . . . . . . . . . . . . . . . . . 53

Storage Dashboard and Storage Health. . . . . . . . . 53

Contents 5

Storage Health . . . . . . . . . . . . . . . . . . . . . . 53

Hot Spare Protection Policy

. . . . . . . . . . . . . . . 54

Select Report

. . . . . . . . . . . . . . . . . . . . . . . 54

Storage Component Severity . . . . . . . . . . . . . . 54

Storage Properties and Current Activity

. . . . . . . . 55

Alerts or Events

. . . . . . . . . . . . . . . . . . . . . 56

Monitoring Disk Reliability on RAID Controllers . . . . 56

Using Alarms to Detect Failures

. . . . . . . . . . . . . 56

Using Enclosure Temperature Probes

. . . . . . . . . . 57

Rescan to Update Storage Configuration Changes . . . 57

Time Delay in Displaying Configuration Changes

. . . 58

5 PCI Express Solid-State Device

Support . . . . . . . . . . . . . . . . . . . . . . . . . . 59

What is PCIe SSD . . . . . . . . . . . . . . . . . . . . 59

PCIe SSD Features

. . . . . . . . . . . . . . . . . . . . 59

PCIe Sub System Properties

. . . . . . . . . . . . . . . 60

PCIe Extender Cards . . . . . . . . . . . . . . . . . . . 61

Physical Device Properties

. . . . . . . . . . . . . . . 61

Physical Device Tasks

. . . . . . . . . . . . . . . . . . 62

Blink and Unblink

. . . . . . . . . . . . . . . . . . 63

Full Initialization

. . . . . . . . . . . . . . . . . . . 63

Prepare to Remove

. . . . . . . . . . . . . . . . . 63

6 Contents

Export Log . . . . . . . . . . . . . . . . . . . . . . 64

PCIe SSD Sub System Health

. . . . . . . . . . . . . . 64

Backplanes

. . . . . . . . . . . . . . . . . . . . . 64

Backplane Firmware Version

. . . . . . . . . . . . 64

6 Storage Information and

Global Tasks . . . . . . . . . . . . . . . . . . . . . . 65

Storage Properties . . . . . . . . . . . . . . . . . . . . 65

Global Tasks

. . . . . . . . . . . . . . . . . . . . . . . 65

Global Rescan

. . . . . . . . . . . . . . . . . . . . 66

Enable/Disable Smart Thermal Shutdown

. . . . . 66

Storage Controllers

. . . . . . . . . . . . . . . . . . . 67

Storage Components

. . . . . . . . . . . . . . . . 70

7 Controllers . . . . . . . . . . . . . . . . . . . . . . . 71

What is a Controller?. . . . . . . . . . . . . . . . . . . 71

RAID Controller Technology: SCSI, SATA, ATA,

and SAS

. . . . . . . . . . . . . . . . . . . . . . . . . 72

RAID Controller Features

. . . . . . . . . . . . . . . . 72

Controller-supported RAID Levels . . . . . . . . . . . . 74

Controller-supported Stripe Sizes

. . . . . . . . . . . . 74

RAID Controller Read, Write, Cache, and

Disk Cache Policy

. . . . . . . . . . . . . . . . . . . . 74

Read Policy

. . . . . . . . . . . . . . . . . . . . . 74

Write Policy

. . . . . . . . . . . . . . . . . . . . . 76

Cache Policy

. . . . . . . . . . . . . . . . . . . . 77

Contents 7

Disk Cache Policy. . . . . . . . . . . . . . . . . . 78

Background Initialization on PERC Controllers

. . . . . 78

Non-RAID Controller Description

. . . . . . . . . . . . 79

Firmware/Driver Versions . . . . . . . . . . . . . . . . 79

Firmware/Driver Properties

. . . . . . . . . . . . 80

Controller Health

. . . . . . . . . . . . . . . . . . . . . 82

Controller Severity

. . . . . . . . . . . . . . . . . 82

Controller Information

. . . . . . . . . . . . . . . 83

Controller Components . . . . . . . . . . . . . . . 83

Controller Properties and Tasks. . . . . . . . . . . . . 84

Controller Properties

. . . . . . . . . . . . . . . . 84

Controller Tasks. . . . . . . . . . . . . . . . . . . 89

Available Reports

. . . . . . . . . . . . . . . . . . 90

Set Rebuild Rate

. . . . . . . . . . . . . . . . . . . . . 94

Reset Configuration

. . . . . . . . . . . . . . . . . . . 95

Export Log . . . . . . . . . . . . . . . . . . . . . . . . 96

Foreign Configuration Operations

. . . . . . . . . . . . 97

Foreign Configuration Properties

. . . . . . . . . . 98

Importing Foreign Configurations

. . . . . . . . . . . . 101

Importing/Recovering Foreign Configurations . . . . . 102

Clear Foreign Configuration

. . . . . . . . . . . . . . . 103

Physical Disks in Foreign Virtual Disks

. . . . . . . . . 104

Set Background Initialization Rate

. . . . . . . . . . . 109

Set Check Consistency Rate

. . . . . . . . . . . . . . . 110

8 Contents

Set Reconstruct Rate. . . . . . . . . . . . . . . . . . 111

Redundant Path Configuration

. . . . . . . . . . . . . 112

Clearing the Redundant Path View

. . . . . . . . 115

Related Topics

. . . . . . . . . . . . . . . . . . 115

Set Patrol Read Mode

. . . . . . . . . . . . . . . . . 115

Start and Stop Patrol Read

. . . . . . . . . . . . . . . 117

Change Controller Properties . . . . . . . . . . . . . 118

Manage Physical Disk Power

. . . . . . . . . . . . . 119

Manage Preserved Cache

. . . . . . . . . . . . . . . 123

Manage Preserved Cache

. . . . . . . . . . . . 123

Manage Encryption Key . . . . . . . . . . . . . . . . 124

Encryption Key

. . . . . . . . . . . . . . . . . . 125

Creating an Encryption Key and

Enabling LKM . . . . . . . . . . . . . . . . . . . 125

Manage CacheCade

. . . . . . . . . . . . . . . . . . 127

Creating a CacheCade

. . . . . . . . . . . . . . 127

Resizing the CacheCade

. . . . . . . . . . . . . 128

Renaming the CacheCade . . . . . . . . . . . . 128

Blinking and Unblinking the CacheCade

. . . . . 128

Deleting the CacheCade

. . . . . . . . . . . . . 129

CacheCade Properties . . . . . . . . . . . . . . 129

Convert to Non-RAID Disks . . . . . . . . . . . . . . 130

Convert to RAID Capable Disks

. . . . . . . . . . . . 130

Patrol Read Report

. . . . . . . . . . . . . . . . . . . 131

Check Consistency Report

. . . . . . . . . . . . . . . 131

Slot Occupancy Report

. . . . . . . . . . . . . . . . . 131

Contents 9

Physical Disk Firmware Version Report. . . . . . . . . 132

8 Enclosures and Backplanes . . . . . . . . . 135

Backplanes . . . . . . . . . . . . . . . . . . . . . . . 135

Enclosures

. . . . . . . . . . . . . . . . . . . . . . . . 135

Enclosure Physical Disks

. . . . . . . . . . . . . . 136

Enclosure Fans

. . . . . . . . . . . . . . . . . . . 136

Enclosure Power Supplies

. . . . . . . . . . . . . 136

Enclosure Temperature Probes . . . . . . . . . . 136

Enclosure Management Modules (EMMs)

. . . . . 137

SMART Thermal Shutdown

. . . . . . . . . . . . . . . 138

Changing the Mode on 220S and 221S Enclosures . . . 138

Enclosure Management

. . . . . . . . . . . . . . . . . 139

Enclosure and Backplane Health

. . . . . . . . . . . . 140

Enclosure and Backplane Status

. . . . . . . . . . 140

Enclosure and Backplane Information

. . . . . . . 140

Enclosure and Backplane Components . . . . . . 141

Enclosure and Backplane Properties and Tasks . . . . 141

Enclosure and Backplane Properties

. . . . . . . 141

Enclosure Tasks . . . . . . . . . . . . . . . . . . 144

Available Reports

. . . . . . . . . . . . . . . . . . 145

Set Asset Data

. . . . . . . . . . . . . . . . . . . . . . 148

Set Temperature Probe Values

. . . . . . . . . . . . . 149

View Slot Occupancy Report

. . . . . . . . . . . . . . 150

EMM Properties

. . . . . . . . . . . . . . . . . . . . . 151

10 Contents

Fan Properties . . . . . . . . . . . . . . . . . . . . . 153

Power Supply Properties

. . . . . . . . . . . . . . . 155

Temperature Probe Properties and Tasks

. . . . . . . 157

Temperature Probe Properties and Tasks

. . . . 157

Set Temperature Probe Properties and Tasks

. . 159

9 Connectors. . . . . . . . . . . . . . . . . . . . . . . 161

Channel Redundancy and Thermal Shutdown . . . . 161

Creating a Channel-redundant Virtual Disk . . . . . . 161

Connector Health

. . . . . . . . . . . . . . . . . . . . 163

Connector Status

. . . . . . . . . . . . . . . . . 163

Connector Information

. . . . . . . . . . . . . . 164

Connector Components. . . . . . . . . . . . . . 164

Connector Properties and Tasks. . . . . . . . . . . . 164

Connector Properties

. . . . . . . . . . . . . . . 164

Connector Tasks: Rescan Connector

. . . . . . . 166

Connector Components

. . . . . . . . . . . . . . 166

Logical Connector Properties and Tasks

. . . . . . . 166

Logical Connector Properties

. . . . . . . . . . . 166

Path Health

. . . . . . . . . . . . . . . . . . . . 167

Clearing the Redundant Path View . . . . . . . . 167

Related Tasks

. . . . . . . . . . . . . . . . . . . 168

Logical Connector Components

. . . . . . . . . 168

10 Tape Drives . . . . . . . . . . . . . . . . . . . . . . 169

Tape Drive Properties . . . . . . . . . . . . . . . . . 169

Contents 11

11 RAID Controller Batteries . . . . . . . . . . . 171

Battery Properties and Tasks . . . . . . . . . . . . . . 171

Battery Properties

. . . . . . . . . . . . . . . . . 171

Battery Tasks

. . . . . . . . . . . . . . . . . . . . 173

12 Physical Disks or Physical Devices. . . . 177

Guidelines to Replace a Physical Disk or

Physical Device . . . . . . . . . . . . . . . . . . . . . 177

Add a New Disk to Your System

. . . . . . . . . . . . . 178

How to Avoid Removing the Wrong Disk

. . . . . . . . 179

Replacing a Physical Disk Receiving

SMART Alerts

. . . . . . . . . . . . . . . . . . . . . . 179

Other Disk Procedures. . . . . . . . . . . . . . . . . . 180

Physical Disk or Physical Device Properties

and Tasks

. . . . . . . . . . . . . . . . . . . . . . . . . 180

Physical Disk or Physical Device Properties

. . . . 181

Physical Disk or Physical Device Tasks

. . . . . . 187

Blink and Unblink (Physical Disk)

. . . . . . . . . . . . 188

Remove Dead Segments

. . . . . . . . . . . . . . . . . 189

Prepare to Remove

. . . . . . . . . . . . . . . . . . . . 189

Rebuild

. . . . . . . . . . . . . . . . . . . . . . . . . . 190

Cancel Rebuild

. . . . . . . . . . . . . . . . . . . . . . 190

Assign and Unassign Global Hot Spare

. . . . . . . . . 190

Online and Offline

. . . . . . . . . . . . . . . . . . . . 192

12 Contents

Clear Physical Disk and Cancel Clear. . . . . . . . . 192

Revertible Hot Spare

. . . . . . . . . . . . . . . . . . 193

Instant Encrypt Erase

. . . . . . . . . . . . . . . . . . 194

Full Initialization . . . . . . . . . . . . . . . . . . . . 195

Convert to RAID Capable Disk

. . . . . . . . . . . . . 196

Convert to Non-RAID Disk

. . . . . . . . . . . . . . . 196

13 Virtual Disks. . . . . . . . . . . . . . . . . . . . . . 197

Considerations Before Creating Virtual Disks . . . . 197

Virtual Disk Considerations for Controllers

. . . . 198

Virtual Disk Considerations for PERC S100,

S110, and S300 Controllers . . . . . . . . . . . . 200

Virtual Disk Considerations on Linux

. . . . . . . 201

Number of Physical Disks per Virtual Disk . . . . 201

Maximum Number of Virtual Disks

per Controller . . . . . . . . . . . . . . . . . . . 202

Calculation for Maximum Virtual Disk Size

and the Create Virtual Disk Express Wizard

. . . 202

Channel Redundant Virtual Disks . . . . . . . . . 202

Creating Virtual Disks

. . . . . . . . . . . . . . . . . 203

Reconfiguring/Migrating Virtual Disks

. . . . . . . . 204

Starting and Target RAID Levels for Virtual Disk

Reconfiguration and Capacity Expansion

. . . . . . . 204

Maintain Integrity of Redundant Virtual Disks

. . . . 207

Rebuilding Redundant Information

. . . . . . . . . . 208

Virtual Disk Bad Block Management

. . . . . . . . . 208

Contents 13

What is a Virtual Disk Bad Block? . . . . . . . . . 208

Recommendations . . . . . . . . . . . . . . . . . 210

Virtual Disk Properties and Tasks . . . . . . . . . . . . 210

Virtual Disk Properties

. . . . . . . . . . . . . . . 210

Virtual Disk Tasks . . . . . . . . . . . . . . . . . . 214

Create Virtual Disk Express Wizard. . . . . . . . . . . 219

Create Virtual Disk Express Wizard (Step 2)

. . . . . . 221

Create Virtual Disk Advanced Wizard

. . . . . . . . . . 222

Create Virtual Disk Advanced Wizard (Step 2) . . . . . 226

Create Virtual Disk Advanced Wizard (Step 3)

. . . . . 228

Span Edit

. . . . . . . . . . . . . . . . . . . . . . . . . 230

Virtual Disk Task: Reconfigure (Step 1 of 3). . . . . . . 230

Virtual Disk Task: Reconfigure (Step 2 of 3)

. . . . . . . 232

Virtual Disk Task: Reconfigure (Step 3 of 3)

. . . . . . . 234

Slow and Fast Initialize

. . . . . . . . . . . . . . . . . 234

Considerations for Fast Initialize

. . . . . . . . . . 234

Considerations for Slow Initialize

. . . . . . . . . 235

Formatting or Initializing a Disk

. . . . . . . . . . . 235

Virtual Disk Task: Delete

. . . . . . . . . . . . . . . . 236

Virtual Disk Task: Rename

. . . . . . . . . . . . . . . . 237

Virtual Disk Task: Change Policy

. . . . . . . . . . . . 238

Split Mirror

. . . . . . . . . . . . . . . . . . . . . . . . 239

Unmirror

. . . . . . . . . . . . . . . . . . . . . . . . . 239

14 Contents

Assign and Unassign Dedicated Hot Spare . . . . . . 240

Virtual Disk Task: Replace Member Disk

(Step 1 of 2)

. . . . . . . . . . . . . . . . . . . . . . . 241

Virtual Disk Task: Replace Member Disk

(Step 2 of 2)

. . . . . . . . . . . . . . . . . . . . . . . 243

14 Moving Physical and Virtual Disks

from One System to Another . . . . . . . . . 245

Required Conditions . . . . . . . . . . . . . . . . . . 245

Migrating SAS Virtual Disks to Another System

. . . 246

15 Protecting Your Virtual Disk with

a Hot Spare . . . . . . . . . . . . . . . . . . . . . . 247

Understanding Hot Spares . . . . . . . . . . . . . . . 247

Setting Hot Spare Protection Policy

. . . . . . . . . . 247

Dedicated Hot Spare Protection Policy

. . . . . 248

Resetting the Hot Spare Protection Policy

. . . . 248

Global Hot Spare Protection Policy. . . . . . . . 249

Considerations for Hot Spare Protection

Policy

. . . . . . . . . . . . . . . . . . . . . . . 249

Considerations for Enclosure Affinity. . . . . . . 249

Considerations for Hot Spares on PERC 5/E,

PERC 5/i, PERC 6/E, PERC 6/I, and CERC 6/I

Controllers

. . . . . . . . . . . . . . . . . . . . . . . 250

Dedicated Hot Spare Considerations

. . . . . . . 251

Considerations for Hot Spares on S100,

and S300 Controllers

. . . . . . . . . . . . . . . . . . 252

Contents 15

Size Requirements for Global Hot Spares on

S100, and S300 Controllers

. . . . . . . . . . . . . 252

Global Hot Spare Considerations on a SAS 6/iR . . . . 252

16 CacheCade Using Solid State

Drives . . . . . . . . . . . . . . . . . . . . . . . . . . 255

17 Troubleshooting . . . . . . . . . . . . . . . . . . . 257

Common Troubleshooting Procedures . . . . . . . . . 257

Cables Attached Correctly

. . . . . . . . . . . . . 257

System Requirements. . . . . . . . . . . . . . . . 258

Drivers and Firmware

. . . . . . . . . . . . . . . . 258

Isolate Hardware Problems

. . . . . . . . . . . . 258

Rescan to Update Information on

SCSI Controllers . . . . . . . . . . . . . . . . . . 258

Replacing a Failed Disk

. . . . . . . . . . . . . . . 259

Replacing a Failed Physical Disk that is Part

of a Non-Redundant Virtual Disk . . . . . . . . . . 260

Recovering from Removing the Wrong

Physical Disk . . . . . . . . . . . . . . . . . . . . 261

Resolving Microsoft Windows Upgrade

Problems

. . . . . . . . . . . . . . . . . . . . . . 261

Virtual Disk Troubleshooting . . . . . . . . . . . . . . 261

A Rebuild Does Not Work

. . . . . . . . . . . . . 262

A Rebuild Completes with Errors . . . . . . . . . . 263

Cannot Create a Virtual Disk

. . . . . . . . . . . . 263

A Virtual Disk of Minimum Size is Not Visible

to Windows Disk Management. . . . . . . . . . . 264

Virtual Disk Errors on Linux

. . . . . . . . . . . . . 264

Problems Associated With Using the Same

Physical Disks for Both Redundant and

Non-Redundant Virtual Disks. . . . . . . . . . . . 265

16 Contents

Specific Problem Situations and Solutions . . . . . . 265

Physical Disk is Offline or Displays an

Error Status

. . . . . . . . . . . . . . . . . . . . 266

Receive a “Bad Block” Alert with

“Replacement,” “Sense,” or “Medium”

Error . . . . . . . . . . . . . . . . . . . . . . . . 266

Read and Write Operations Experience

Problems

. . . . . . . . . . . . . . . . . . . . . 267

A Task Menu Option is Not Displayed . . . . . . 268

A Corrupt Disk or Drive Message Suggests

Running autocheck During a Reboot

. . . . . . . 268

Erroneous Status and Error Messages after

a Windows Hibernation. . . . . . . . . . . . . . 268

Storage Management May Delay Before

Updating Temperature Probe Status . . . . . . . 268

Storage Management May Delay Displaying

Storage Devices After Reboot

. . . . . . . . . . 269

You are Unable to Log into a Remote System. . . 269

Cannot Connect to Remote System Running

Windows Server 2003

. . . . . . . . . . . . . . . 269

Reconfiguring a Virtual Disk Displays Error

in Mozilla Browser . . . . . . . . . . . . . . . . 269

Physical Disks Display Under Connector

Not Enclosure Tree Object . . . . . . . . . . . . 270

PCIe SSD Troubleshooting

. . . . . . . . . . . . . . . 270

Peripheral Component Interconnect Express

(PCIe) Solid-State Drive (SSD) is not seen in

the operating system

. . . . . . . . . . . . . . . 270

PCIe SSD is not seen in disk management in

the operating system . . . . . . . . . . . . . . . 270

18 Frequently Asked Questions . . . . . . . . . 273

Why is a Rebuild not Working? . . . . . . . . . . . . 273

Contents 17

How Can I Safely Remove or Replace a

Physical Disk?

. . . . . . . . . . . . . . . . . . . . . . 273

How do I Recover from Removing the Wrong

Physical Disk?

. . . . . . . . . . . . . . . . . . . . . . 274

How do I Identify the Firmware Version that

is installed?

. . . . . . . . . . . . . . . . . . . . . . . 274

Which Controllers do I Have? . . . . . . . . . . . . . . 274

How do I Turn off an Alarm?

. . . . . . . . . . . . . . . 275

Which RAID level is Best for me?

. . . . . . . . . . . . 275

A Supported Features . . . . . . . . . . . . . . . . 277

Supported Features on the PERC 5/ PERC 6/,

and CERC 6/I Controllers

. . . . . . . . . . . . . . . . . 277

Controller Tasks

. . . . . . . . . . . . . . . . . . . 277

Battery Tasks

. . . . . . . . . . . . . . . . . . . . 280

Connector Tasks . . . . . . . . . . . . . . . . . . 280

Physical Disk Tasks

. . . . . . . . . . . . . . . . . 281

Virtual Disk Tasks

. . . . . . . . . . . . . . . . . . 282

Virtual Disk Specifications . . . . . . . . . . . . . 283

Supported RAID Levels

. . . . . . . . . . . . . . . 286

Read, Write, Cache and Disk Cache Policy

. . . . 286

Enclosure Support . . . . . . . . . . . . . . . . . 287

Supported Features on the PERC Hardware

Controllers

. . . . . . . . . . . . . . . . . . . . . . . . 287

Controller Tasks

. . . . . . . . . . . . . . . . . . . 288

Battery Tasks

. . . . . . . . . . . . . . . . . . . . 292

Connector Tasks

. . . . . . . . . . . . . . . . . . 293

Physical Disk Tasks

. . . . . . . . . . . . . . . . . 293

Virtual Disk Tasks

. . . . . . . . . . . . . . . . . . 295

18 Contents

Virtual Disk Specifications . . . . . . . . . . . . 297

Supported RAID Levels . . . . . . . . . . . . . . 299

Read, Write, Cache and Disk Cache Policy

. . . . 300

Enclosure Support

. . . . . . . . . . . . . . . . 301

Supported Features on the SAS 5/iR, SAS 6/iR,

and PERC H200 Controllers

. . . . . . . . . . . . . . 301

Controller Tasks

. . . . . . . . . . . . . . . . . . 302

Battery Tasks . . . . . . . . . . . . . . . . . . . 303

Connector Tasks

. . . . . . . . . . . . . . . . . 303

Physical Disk Tasks

. . . . . . . . . . . . . . . . 304

Virtual Disk Tasks . . . . . . . . . . . . . . . . . 305

Supported RAID Levels

. . . . . . . . . . . . . . 306

Virtual Disk Specifications

. . . . . . . . . . . . 306

Read, Write, Cache and Disk Cache Policy. . . . 308

Enclosure Support

. . . . . . . . . . . . . . . . 309

Supported Features on the PERC S100, PERC S110,

and S300 Controllers

. . . . . . . . . . . . . . . . . . 310

Controller Tasks

. . . . . . . . . . . . . . . . . . 310

Physical Disk Tasks . . . . . . . . . . . . . . . . 310

Virtual Disk Tasks

. . . . . . . . . . . . . . . . . 311

Virtual Disk Specifications

. . . . . . . . . . . . 311

Supported RAID Levels . . . . . . . . . . . . . . 313

Read, Write, Cache and Disk Cache Policy

. . . . 313

Enclosure Support

. . . . . . . . . . . . . . . . 314

Supported Features on the Non-RAID Controllers

. . 314

Controller Tasks

. . . . . . . . . . . . . . . . . . 315

Battery Tasks

. . . . . . . . . . . . . . . . . . . 316

Connector Tasks

. . . . . . . . . . . . . . . . . 316

Physical Disk Tasks

. . . . . . . . . . . . . . . . 316

Virtual Disk Tasks

. . . . . . . . . . . . . . . . . 317

Enclosure Support

. . . . . . . . . . . . . . . . 318

Contents 19

Enclosure and Backplane Features . . . . . . . . . . . 318

Enclosure and Backplane Tasks

. . . . . . . . . . 319

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 319

Maximum Supported Configuration

. . . . . . . . . . . 319

19 Determining the Health Status for

Storage Components . . . . . . . . . . . . . . . 321

Health Status Rollup: Battery is Charging

or Dead . . . . . . . . . . . . . . . . . . . . . . . . . . 321

Health Status Rollup: Physical Disks in a

Virtual Disk are Failed or Removed

. . . . . . . . . . . 322

Health Status Rollup: Physical Disks in a

Virtual Disk are Unsupported, Partially or

Permanently Degraded

. . . . . . . . . . . . . . . . . 322

Health Status Rollup: All Physical Disks in a

Virtual Disk are in Foreign State

. . . . . . . . . . . . 323

Health Status Rollup: Some Physical Disks in a

Virtual Disk are in Foreign State

. . . . . . . . . . . . 324

Health Status Rollup: Virtual Disk is Degraded;

Physical Disks are Failed or Rebuilding

. . . . . . . . 324

Health Status Rollup: Virtual Disk is Failed. . . . . . . 325

Health Status Rollup: Unsupported Firmware

Version

. . . . . . . . . . . . . . . . . . . . . . . . . . 326

Health Status Rollup: Enclosure Power Supply

Failed or Power Connection Removed

. . . . . . . . . 326

Health Status Rollup: One Enclosure Fan is

Failed

. . . . . . . . . . . . . . . . . . . . . . . . . . . 327

20 Contents

Health Status Rollup: One Enclosure EMM is

Failed

. . . . . . . . . . . . . . . . . . . . . . . . . . 327

Health Status Rollup: One Enclosure Temperature

Probe is Failed

. . . . . . . . . . . . . . . . . . . . . 328

Health Status Rollup: Lost Both Power Connections

to the Enclosure

. . . . . . . . . . . . . . . . . . . . 328

Health Status Rollup: One or More Physical Disks

are Failed

. . . . . . . . . . . . . . . . . . . . . . . . 329

Health Status Rollup: Physical Disk is Rebuilding . . 330

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Dell OpenManage Server Administrator Version 7.2 User manual

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