Dell MD3200, MD3220 User Manual

Dell™ PowerVault™

MD3200 and MD3220

Storage Arrays

Owner’s Manual

Regulatory Model: E03J Series and E04J Series

Regulatory Type: E03J001 and E04J001

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.

____________________

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, OpenManage, PowerEdge, and PowerVault are trademarks of Dell Inc. Microsoft, Windows, Internet Explorer, MS-DOS, and Windows Server 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 Nov ell, Inc. in the United States and other countries; VMware is a registered trademark of VMware, Inc. in the United States and/or other jurisdictions.

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.

Regulatory Model: E03J Series and E04J Series Regulatory Type: E03J001 and E04J001

May 2010 Rev. A00

Contents

1 Introduction . . . . . . . . . . . . . . . . . . . . . . . 17

About This Document . . . . . . . . . . . . . . . . . . 17

Inside the box of the Dell PowerVault MD3200 Series Storage Array

. . . . . . . . . . . . . . 18

Dell PowerVault MD3200

Storage Array. . . . . . . . . . . . . . . . . . . . 18

Dell PowerVault Modular Disk

Storage Manager . . . . . . . . . . . . . . . . . . 18

Series

Other Information you May Need

. . . . . . . . . . . . 19

2 Planning: About Your Storage Array . . . . 21

Overview . . . . . . . . . . . . . . . . . . . . . . . . . 21

Hardware Features . . . . . . . . . . . . . . . . . . . 22

Front-Panel Features and Indicators

Back Panel Features and Indicators

Hard-Drive Indicator Patterns . . . . . . . . . . . . . . 26

Power Supply and Cooling Fan Features

Power Indicator Codes

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

. . . . . . . 22

. . . . . . . . 25

. . . . . . . . 27

3 Planning: RAID Controller Modules . . . . 29

RAID Controller Modules . . . . . . . . . . . . . . . . 29

Contents 3

RAID Controller Module Connectors and Features . . . 30

RAID Controller Module—Additional Features

Battery Backup Unit

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

Storage Array Thermal Shutdown

. . . . . 32

. . . . . . . . . 33

System Password Reset . . . . . . . . . . . . . . 33

Cache Functions and Features. . . . . . . . . . . . . . 34

Cache Mirroring

. . . . . . . . . . . . . . . . . . . 34

Write-Back Cache . . . . . . . . . . . . . . . . . 34

Write-Through Cache

. . . . . . . . . . . . . . . . 34

4 Planning: MD3200 Series Storage

Array Terms and Concepts . . . . . . . . . . . 35

Physical Disks, Virtual Disks, and Disk Groups. . . . . 35

Physical Disks

Physical Disk States

Self-Monitoring Analysis and Reporting

Technology . . . . . . . . . . . . . . . . . . . . . 37

Virtual Disks and Disk Groups . . . . . . . . . . . 37

Virtual Disk States

RAID Levels

RAID Level Usage

. . . . . . . . . . . . . . . . . . . . 36

. . . . . . . . . . . . . . . . 36

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

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

. . . . . . . . . . . . . . . . . . 39

4 Contents

Segment Size. . . . . . . . . . . . . . . . . . . . . . . 41

Virtual Disk Operations

Virtual Disk Initialization

Background Initialization

Foreground Initialization

Consistency Check

Media Verification

Cycle Time

. . . . . . . . . . . . . . . . . 41

. . . . . . . . . . . . . . 41

. . . . . . . . . . . . . . . . . 42

. . . . . . . . . . . . . . . . . . . . . . 42

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

Disk Group Operations

RAID Level Migration

Segment Size Migration

. . . . . . . . . . . . . . . . . . 43

. . . . . . . . . . . . . . . . 43

. . . . . . . . . . . . . . 43

Virtual Disk Capacity Expansion . . . . . . . . . . 44

Disk Group Expansion

Disk Group Defragmentation

. . . . . . . . . . . . . . . 44

. . . . . . . . . . . . 45

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

RAID Background Operations Priority . . . . . . . . . 45

Virtual Disk Migration and Disk Roaming

Disk Migration

Disk Roaming

Advanced Features

. . . . . . . . . . . . . . . . . . . 46

. . . . . . . . . . . . . . . . . . . . 48

. . . . . . . . . . . . . . . . . . . 48

Host Server-to-Virtual Disk Mapping

Host Types

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

. . . . . . . . 46

. . . . . . . . 49

Snapshot Virtual Disks . . . . . . . . . . . . . . . 49

Snapshot Repository Virtual Disk

. . . . . . . . . . 50

Virtual Disk Copy . . . . . . . . . . . . . . . . . . 51

Virtual Disk Recovery

Using Snapshot and Disk Copy Together

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

. . . . . . 52

Multi-Path Software

. . . . . . . . . . . . . . . . . . . 52

Preferred and Alternate Controllers and Paths

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

Virtual Disk Ownership . . . . . . . . . . . . . . . 53

Load Balancing

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

Monitoring MD3200 Series System Performance

Contents 5

. . . . 55

5 Configuration: Overview . . . . . . . . . . . . 59

User Interface . . . . . . . . . . . . . . . . . . . . . . 59

Enterprise Management Window

Array Management Window

. . . . . . . . . 60

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

6 Configuration: About Your

Storage Array . . . . . . . . . . . . . . . . . . . . . 63

Out-of-Band and In-Band Management . . . . . . . . . 63

Storage Arrays

Adding Storage Arrays

Setting Up Your Storage Array

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

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

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

Locating Storage Arrays . . . . . . . . . . . . . . 67

Naming or Renaming Storage Arrays

Setting a Password

. . . . . . . . . . . . . . . . . 69

. . . . . . . . 68

Viewing Storage Array Connections . . . . . . . . 70

Adding/Editing a Comment to an

Existing Storage Array . . . . . . . . . . . . . . . 71

Removing Storage Arrays

Enabling Premium Features

. . . . . . . . . . . . . . 71

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

Failover Alert Display . . . . . . . . . . . . . . . . 72

Changing the Cache Settings on the Storage Array

. . . . . . . . . . . . . . . . . . 73

Changing Expansion Enclosure ID Number . . . . 73

Changing the Enclosure Order in the Physical Pane

Configuring Alert Notifications

Configuring E-mail Alerts

Configuring SNMP Alerts

Battery Settings

. . . . . . . . . . . . . . . . . . . . 73

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

. . . . . . . . . . . . . . 75

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

. . . . . . . . . . . . . . . . . . . . . 78

6 Contents

Setting the Storage Array RAID Controlle r Module Clocks

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

7 Configuration: Event Monitor . . . . . . . . . 81

Enabling or Disabling the Event Monitor . . . . . . . . 82

Windows

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

Linux . . . . . . . . . . . . . . . . . . . . . . . . 82

8 Configuration: About Your Host . . . . . . . . 83

Configuring Host Access . . . . . . . . . . . . . . . . 83

Using the Mappings Tab

Defining a Host

Removing Host Access

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

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

. . . . . . . . . . . . . . . . . 86

Managing Host Groups . . . . . . . . . . . . . . . . . 86

Creating a Host Group

Moving a Host to a Different Host Group

Removing a Host Group

. . . . . . . . . . . . . . . 86

. . . . . . 87

. . . . . . . . . . . . . . . 88

Host Topology. . . . . . . . . . . . . . . . . . . . 88

Starting or Stopping the Host Context Agent

I/O Data Path Protection

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

Managing Host Port Identifiers . . . . . . . . . . . . . 91

9 Configuration: Disk Groups and

Virtual Disks . . . . . . . . . . . . . . . . . . . . . . 93

Creating Disk Groups and Virtual Disks. . . . . . . . . 93

Creating Disk Groups

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

. . . . 89

Contents 7

Locating a Disk Group . . . . . . . . . . . . . . . 96

Creating Virtual Disks . . . . . . . . . . . . . . . . 96

Changing the Virtual Disk Modification Priority

. . . . . . . . . . . . . . . . . . . . . . . 98

Changing the Virtual Disk Cache Settings . . . . . 99

Changing the Segment Size of a Virtual Disk

Changing the I/O Type

. . . . . . . . . . . . . . . 102

. . . 101

Choosing an Appropriate Physical Disk Type

. . . . . 103

Physical Disk Security with Self Encrypting

. . . . . . . . . . . . . . . . . . . . . . . . . . . 104

Disk

Creating a Security Key

Changing a Security Key

. . . . . . . . . . . . . . 106

. . . . . . . . . . . . . 108

Saving a Security Key. . . . . . . . . . . . . . . 109

Unlocking Secure Physical Disks

Erasing Secure Physical Disks

Configuring Hot Spare Physical Disks

Hot Spares and Rebuild

. . . . . . . . . . . . . . 113

. . . . . . . . . 110

. . . . . . . . . . 111

. . . . . . . . . 111

Global Hot Spares. . . . . . . . . . . . . . . . . 113

Hot Spare Operation

Hot Spare Drive Protection

Enclosure Loss Protection

Host-to-Virtual Disk Mapping

Creating Host-to-Virtual Disk Mappings

. . . . . . . . . . . . . . . 114

. . . . . . . . . . . . 114

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

. . . . . . . . . . . . . 116

. . . . . 117

Modifying and Removing Host-to-Virtual Disk Mapping

. . . . . . . . . . . . . . . . . . . 118

Changing Controller Ownership of the Virtua

l Disk . . . . . . . . . . . . . . . . . . . . . . . 119

Removing Host-to-Virtual Disk Mapping

. . . . . 120

Changing the RAID Controller Module Ownership of a Disk Group

Changing the RAID Level of a Disk Group

. . . . . . . . . . . . 121

. . . . 122

8 Contents

Restricted Mappings. . . . . . . . . . . . . . . . . . . 122

Changing the RAID Controller Module Ownership of a Virtual Disk or a Disk Group

. . . . . . . . . . 124

Changing the RAID Level of a Disk Group. . . . . . . . 125

Storage Partitioning

Disk Group and Virtual Disk Expansion

Disk Group Expansion

Virtual Disk Expansion

Using Free Capacity

. . . . . . . . . . . . . . . . . . . 126

. . . . . . . . . 128

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

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

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

Using Unconfigured Capacity . . . . . . . . . . . 129

Disk Group Migration . . . . . . . . . . . . . . . . . . 130

Export Disk Group

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

Exporting a Disk Group . . . . . . . . . . . . . . . 130

Import Disk Group . . . . . . . . . . . . . . . . . . . . 131

Importing a Disk Group

Storage Array Media Scan

Changing Media Scan Settings

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

. . . . . . . . . . . . . . . 132

. . . . . . . . . . 133

Suspending the Media Scan . . . . . . . . . . . . 134

10 Configuration: Premium Feature—

Snapshot Virtual Disks . . . . . . . . . . . . . 135

Creating a Snapshot Virtual Disk Using the

Simple Path . . . . . . . . . . . . . . . . . . . . . . . 136

About the Simple Path

. . . . . . . . . . . . . . . 137

Preparing Host Servers to Create the

Snapshot Using the Simple Path . . . . . . . . . . 137

Creating a Snapshot Virtual Disk Using the Advanced Path

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

Contents 9

About the Advanced Path. . . . . . . . . . . . . 140

Preparing Host Servers to Create

the Snapshot Using the Advanced Path . . . . . 141

Creating the Snapshot Using the

Advanced Path . . . . . . . . . . . . . . . . . . 143

Specifying Snapshot Virtual Disk Names . . . . . . . 145

Snapshot Repository Capacity

Re-creating Snapshot Virtual Disks

. . . . . . . . . . . . . 146

. . . . . . . . . . 149

Disabling a Snapshot Virtual Disk. . . . . . . . . . . 150

Preparing Host Servers to Re-create a Snapshot Virtual Disk

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

Re-creating a Snapshot Virtual Disk . . . . . . . . . 152

11 Configuration: Premium Feature—

Virtual Disk Copy . . . . . . . . . . . . . . . . . . 153

Creating a Virtual Disk Copy for an MSCS

Shared Disk . . . . . . . . . . . . . . . . . . . . . . 154

Virtual Disk Read/Write Permissions

Virtual Disk Copy Restrictions . . . . . . . . . . . . . 155

Creating a Virtual Disk Copy

Before you Begin

. . . . . . . . . . . . . . . . . 157

Virtual Disk Copy and Modification

Operations . . . . . . . . . . . . . . . . . . . . 157

Create Copy Wizard

. . . . . . . . . . . . . . . . 157

Failed Virtual Disk Copy

. . . . . . . . . 155

. . . . . . . . . . . . . . 156

. . . . . . . . . . . . . . 158

10 Contents

Preferred RAID Controller Module Ownership

Failed RAID Controller Module

. . . . . . . . . . . . 158

. . . . 158

Copy Manager . . . . . . . . . . . . . . . . . . . . . . 159

Copying the Virtual Disk

. . . . . . . . . . . . . . . . . 159

Storage Array Performance During Virtual Disk Copy

Setting Copy Priority

. . . . . . . . . . . . . . . . . . . . . . . . 160

. . . . . . . . . . . . . . . . . . . 161

Stopping a Virtual Disk Copy . . . . . . . . . . . . . . 161

Recopying a Virtual Disk

. . . . . . . . . . . . . . . . 162

Preparing Host Servers to Recopy a Virtual Disk

. . . . . . . . . . . . . . . . . . . . 162

Recopying the Virtual Disk . . . . . . . . . . . . . 163

Removing Copy Pairs . . . . . . . . . . . . . . . . . . 164

12 Configuration: Premium Feature—

Upgrading to High-Performance-Tier . . 165

13 Configuration: Device Mapper

Multipath for Linux . . . . . . . . . . . . . . . . 167

Overview . . . . . . . . . . . . . . . . . . . . . . . . . 167

Using DM Multipathing Devices

Prerequisite Steps

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

Device Mapper Configuration Steps

Limitations and Known Issues

Troubleshooting

. . . . . . . . . . . . . . . . . . . . . 175

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

. . . . . . . . 169

. . . . . . . . . . . . . . 174

Contents 11

14 Management: Firmware Downloads . . . 177

Downloading RAID Controller and NVSRAM

Packages . . . . . . . . . . . . . . . . . . . . . . . . 177

Downloading Both RAID Controller and NVSRAM Firmware

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

Downloading Only NVSRAM Firmware

Downloading Physical Disk Firmware

. . . . . . . . 180

. . . . . . . . 183

Downloading MD1200 Series Expansion Module EMM Firmware

. . . . . . . . . . . . . . . . . . . . . 185

Self-Monitoring Analysis and Reporting Technology (SMART)

. . . . . . . . . . . . . . . . . . 186

Media Errors and Unreadable Sectors . . . . . . . . 187

15 Management: Installing Array

Components . . . . . . . . . . . . . . . . . . . . . . 189

Recommended Tools . . . . . . . . . . . . . . . . . . 189

Front Bezel (Optional) . . . . . . . . . . . . . . . . . 190

Removing the Front Bezel

Installing the Front Bezel

Hard Drives. . . . . . . . . . . . . . . . . . . . . . . 191

Removing a Drive Blank

Installing a Drive Blank . . . . . . . . . . . . . . 192

Removing a Hard Drive

Installing a Hard Drive

Removing a Hard Drive From a Hard-Drive

. . . . . . . . . . . . . . . . . . . . . . . 195

Carrier

Installing a Hard Drive Into a Drive

Carrier . . . . . . . . . . . . . . . . . . . . . . . 197

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

. . . . . . . . . . . . . . 191

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

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

12 Contents

RAID Controller Module . . . . . . . . . . . . . . . . . 197

Removing a RAID Controller Module Blank

. . . . 197

Installing a RAID Controller Module Blank. . . . . 198

Removing a RAID Controller Module

Installing a RAID Controller Module

. . . . . . . . 199

. . . . . . . . 200

Opening the RAID Controller Module . . . . . . . 200

Closing the RAID Controller Module

. . . . . . . . 201

RAID Controller Module Backup Battery Unit

. . . . . 202

Removing the RAID Controller Module Backup Battery Unit

. . . . . . . . . . . . . . . . . . . . . 202

Installing the RAID Controller Module Backup

Battery Unit . . . . . . . . . . . . . . . . . . . . . 203

Power Supply/Cooling Fan Module . . . . . . . . . . . 204

Removing a Power Supply/Cooling Fan Module

. . . . . . . . . . . . . . . . . . . . . 204

Installing a Power Supply/Cooling Fan Module

Control Panel

Removing the Control Panel

. . . . . . . . . . . . . . . . . . . . . 205

. . . . . . . . . . . . . . . . . . . . . . . 206

. . . . . . . . . . . . 206

Installing the Control Panel. . . . . . . . . . . . . 208

Backplane . . . . . . . . . . . . . . . . . . . . . . . . 209

Removing the Backplane

. . . . . . . . . . . . . . 209

Installing the Backplane . . . . . . . . . . . . . . 212

16 Management: Firmware Inventory . . . . 213

Viewing the Firmware Inventory . . . . . . . . . . . . 213

17 Management: System Interfaces . . . . . 215

Microsoft Services. . . . . . . . . . . . . . . . . . . . 215

Contents 13

Virtual Disk Service . . . . . . . . . . . . . . . . 215

Volume Shadow-Copy Service . . . . . . . . . . 215

18 Troubleshooting: Your Storage

Array Software . . . . . . . . . . . . . . . . . . . 217

Start-Up Routine . . . . . . . . . . . . . . . . . . . . 217

Device Health Conditions . . . . . . . . . . . . . . . 217

Storage Array Support Data

Automatically Collect the Support Bundle Data

. . . . . . . . . . . . . . 220

. . . 221

Collecting the Physical Disk Data . . . . . . . . . . . 222

Event Log

Recovery Guru

. . . . . . . . . . . . . . . . . . . . . . . . 222

. . . . . . . . . . . . . . . . . . . . . 223

Storage Array Profile. . . . . . . . . . . . . . . . . . 224

Viewing the Logical Associations

Viewing the Physical Associations

Finding Nodes

Using Go To

. . . . . . . . . . . . . . . . . . . . . 227

. . . . . . . . . . . . . . . . . . . . . . . 228

. . . . . . . . . . . 226

. . . . . . . . . . 226

Recovering From an Unresponsive Storage Array Condition

Locating a Physical Disk

Locating an Expansion Enclosure

. . . . . . . . . . . . . . . . . . . . . 229

. . . . . . . . . . . . . . . . 232

. . . . . . . . . . . 233

14 Contents

Capturing the State Information

SMrepassist Utility

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

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

Unidentified Devices . . . . . . . . . . . . . . . . . . 236

Recovering From an Unidentified Storage Array

. . . . 236

Starting or Restarting the Host Context Agent Software

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

19 Troubleshooting: Your Array . . . . . . . . . 241

Safety First—For you and Your Array . . . . . . . . . . 241

Troubleshooting Storage Array Startup Failure . . . . . 241

Troubleshooting Loss of Communication

Troubleshooting External Connections

Troubleshooting Power Supply/Cooling Fan Module

. . . . . . . . . . . . . . . . . . . . . . . . 242

Troubleshooting Array Cooling Problems . . . . . . . . 243

Troubleshooting Expansion Enclosure Management Modules

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

Troubleshooting RAID Controller Modules . . . . . . . 244

. . . . . . . . 241

. . . . . . . . . 241

Troubleshooting Hard Drives

. . . . . . . . . . . . . . 246

Troubleshooting Array and Expansion Enclosure Connections

Troubleshooting a Wet Storage Array

Troubleshooting a Damaged Array

. . . . . . . . . . . . . . . . . 247

. . . . . . . . . . 248

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

Troubleshooting RAID Controller Modules

Conditions

Invalid Storage Array

ECC Errors

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

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

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

. . . . . . . 249

Contents 15

PCI Errors . . . . . . . . . . . . . . . . . . . . . 250

Critical Conditions. . . . . . . . . . . . . . . . . 250

Noncritical Conditions

. . . . . . . . . . . . . . 251

20 Getting Help . . . . . . . . . . . . . . . . . . . . . . 253

Contacting Dell. . . . . . . . . . . . . . . . . . . . . 253

Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 255

16 Contents

Introduction

See the Safety, Environmental, and Regulatory Information document for important safety information before following any procedures listed in this document.

About This Document

This guide familiarizes you with the functions of the MD3200 Series storage array. The guide is organized according to the tasks that you must complete after receiving your Dell™ PowerVault™ MD3200 Series storage array.

Planning—Information about the storage array and its features.

Configuration—Tasks that must be completed to ensure that your storage array performs optimally.

Management—Tasks the may be performed to ensure the storage array components are up to date and performing properly, including removal and installation of storage array components.

Troubleshooting—Tasks that you must complete to resolve problems that may occur with the storage array.

Additional information on these and other topics can be found in the Dell PowerVault MD3200 and MD3220 Storage Array Deployment Guide, available at support.dell.com/manuals.

Introduction 17

Inside the box of the Dell PowerVault MD3200 Series Storage Array

Unless specified MD3200 Series represents Dell PowerVault MD3200 and Dell PowerVault MD3220.

Your MD3200 Series product package includes:

• Dell PowerVault MD3200

• SAS cables

• Power cables (2)

• Bezel (optional)

• Mounting rails (2) (optional)

• Dell PowerVault MD3200

• The Rack Installation Instructions included with your rack solution describes how to install your enclosure into a rack.

•

Getting Started With Your System

features, setting up your enclosure, and technical specifications.

Dell PowerVault MD3200 Series Storage Array

The Dell PowerVault MD3200 Series is a 2U rack-mounted external redundant array of independent disks (RAID) storage array capable of accommodating up to 12 3.5" or 24 2.5" 6.0-Gbps Serial-Attached SCSI (SAS) disks. The MD3200 Series storage arrays can be daisy-chained with MD1200 Series expansion enclosures, providing access to a maximum of 96 disks in the entire storage array. Connectivity between the storage array and the host server is provided by a Dell 6.0-Gbps SAS Host Bus Adapter (SAS 6Gb HBA).

Series

storage array

Series

resource media

provides an overview of enclosure

Dell PowerVault Modular Disk Storage Manager

Dell PowerVault Modular Disk Storage Manager (MDSM) is a graphical user interface (GUI) application, used to configure and manage one or more MD3200 Series Storage Arrays. The MDSM software is located on the MD3200 Series resource media.

18 Introduction

Other Information you May Need

WARNING: See the safety and regulatory information that shipped with your

system. Warranty information may be included within this document or as a separate document.

•

Getting Started Guide

storage array.

•

Deployment Guide

both software and hardware.

•

Storage Manager CLI Guide

command line interface (CLI).

• Resource media contains all system management tools.

•

Systems Support Matrix

hardware for MD systems. The document is available at

support.dell.com/manuals

•

Dell PowerEdge® Cluster Documentation

•

Release notes

to the enclosure or documentation or advanced technical reference material intended for experienced users or technicians.

• This document as well as Dell PowerVault MD 1200 series installation guide is available at MD1200 expansion enclosures.

or readme files are included to provide last-minute updates

provides an overview of setting up and cabling your

provides installation and configuration instructions for

provides information about using the

provides information on supported software and

is available at dell.com/ha.

support.dell.com/manuals

for users who incorporate

NOTE: Always check for updates on support.dell.com/manuals and read the

updates first because they often supersede information in other documents.

Introduction 19

20 Introduction

Planning: About Your Storage Array

Overview

The MD3200 Series storage array is designed for high availability, offering redundant access to data storage. It features support for both single and dual RAID controller configuration.

The Dell™ PowerVault™ MD3200 Series storage array provides 6.0-Gbps SAS connectivity to the host server and enables access for up to 8 non-redundant servers or 4 redundant servers.

The MD3200 Series storage array includes a number of components. These are:

• RAID Controller Module(s)

•PSU/Fan Modules

• Disk Drives (also called Physical Disk Drives in this document)

• An optional front panel bezel

• A system enclosure, into which, the other components are plugged

Planning: About Your Storage Array 21

Hardware Features

Front-Panel Features and Indicators

Figure 2-1. Front-Panel Features and Indicators—Dell™ PowerVault™ MD3200

Figure 2-2. Front-Panel Features and Indicators—Dell PowerVault MD3220

22 Planning: About Your Storage Array

Figure 2-3. Front-Bezel Features and Indicators

Item Indicator, Button, or

Connector

1 Enclosure status LED The enclosure status LED lights when the

2 Power LED The power LED lights green when at least one

Icon Description

enclosure power is on.

Lights blue during normal operation.

Blinks blue when a host server is identifying the enclosure or when the system identification button is pressed.

Lights amber as enclosure boots or is reset.

Blinks amber when the enclosure is either in a fault state or the hosts are not using the preferred path to a virtual disk.

power supply is supplying power to the enclosure.

Planning: About Your Storage Array 23

Item Indicator, Button, or

Connector

3 Split mode LED This LED should be unlit as the split mode

4 System identification

button

5 Hard drives PowerVault MD3200—Up to 12 3.5-inch SAS

6Enclosure mode

switch

Icon Description

function is not supported by the MD3200 Series Storage Arrays.

The system identification button on the front control panel can be used to locate a particular enclosure within a rack. When the button is pushed, the system status indicators on the control panel and the RAID controller module(s) blink blue until the button is pushed again.

hot-swappable hard drives.

PowerVault MD3220—Up to 24 2.5-inch SAS hot-swappable hard drives.

The function of this switch is not applicable to your storage array. However, if MD1200 Series expansion enclosures are daisy chained to the storage array, the enclosure mode switches of the MD1200 Series expansion enclosures must be set to the Unified-Mode position.

NOTE: This switch must be set prior to turning on

the MD1200 Series expansion enclosure. Changing the switch setting after the expansion enclosure is turned on has no effect on enclosure configuration until the expansion enclosure goes through a complete power cycle.

24 Planning: About Your Storage Array

Back Panel Features and Indicators

Figure 2-4. Back-Panel Features and Indicators—Dell PowerVault MD3200 Series

1 600W Power supply/cooling fan

module

3 RAID Controller Module 1 4 600W Power supply/cooling fan

2 RAID Controller Module 0

module

Planning: About Your Storage Array 25

Hard-Drive Indicator Patterns

Figure 2-5. Hard Drive Indicators

1 hard-drive activity indicator (green) 2 hard-drive status indicator (green

26 Planning: About Your Storage Array

and amber)

Drive-Status Indicator Pattern Condition

Off The physical disk is:

• not yet discovered by the host server

• has been spun down for removal

• not supported for the RAID controller module or is not in the physical disk slot

NOTE: The drive status indicator remains

off until all hard drives are initialized after system power is turned on. Drives are not ready for insertion or removal during this time.

Steady green Physical disk is online

Green flashing (On 250 ms, Off 250 ms) Physical disk is being identified

Green flashing (On 400 ms, Off 100 ms) Physical disk rebuilding

Amber flashing (On 150 ms, Off 150 ms) Physical disk failed

Flashing green, amber, and off (Green On 500 ms, Amber On 500 ms, Off 1000 ms)

Flashing green, amber, and off (Green 3 seconds, amber 3 seconds, and off 3 seconds)

Physical disk failure predicted (SMART)

Physical disk rebuild aborted

Power Supply and Cooling Fan Features

The MD3200 Series storage array includes two integrated, hot-swappable power supply/cooling fan modules. Both modules must be installed to ensure proper cooling. Each module contains two separate cooling fans. The system requires at least one of the cooling fans to function to avoid overheating.

A power supply/cooling fan module can be replaced without powering down the system. For information on removing and replacing the modules, see "Power Supply/Cooling Fan Module" on page 204.

CAUTION: A power supply/cooling fan module can be removed from a powered-

on enclosure for a maximum period of 5 minutes. Beyond that time, the system may automatically shut down to prevent damage.

Planning: About Your Storage Array 27

Power Indicator Codes

Figure 2-6. Power Indicator Codes

Item LED Type Icon Description

1 DC power The LED lights green when the DC output

voltage is within the limit.

If this LED is off, it indicates that the DC output voltage are not within the limit.

2 Power supply/cooling

fan fault

3 AC power The LED lights green when the AC input voltage

4 Power connector Connect the external power supply to this

5 Power switches (2) The power switch controls the power supply

The LED lights amber when the DC output voltage is not within the limit or a fault with the fan is detected.

If this LED is off, it indicates that no fault condition is present.

is within the limit.

If this LED is off, it indicates either there is no power or the AC input voltage is not within the limit.

connector.

output to the enclosure.

28 Planning: About Your Storage Array

Planning: RAID Controller Modules

RAID Controller Modules

The RAID controller modules provide high-performance, advanced virtual disk configuration, and fault-tolerant disk subsystem management. Each RAID controller module contains 2 GB of cache that is mirrored with the other controller's cache for high availability and is protected by a batterypowered cache offload mechanism.

RAID controller modules provide the following data path and enclosure management functions:

• Monitoring and controlling enclosure environment elements (temperature, fans, power supplies, and enclosure LEDs)

• Controlling access to the physical disks

• Communicating enclosure attributes and states to the host server and management station

Each RAID controller module has multiple SAS IN ports for host access. The ports provide redundant host connections and support a high availability storage environment. Various configurations can be utilized, in both single controller (simplex) and dual controller (duplex) modes, to connect the storage enclosure to hosts depending on specific redundancy needs.

For information on cabling, see the MD3200 and MD3220 Series storage array’s Deployment Guide.

Planning: RAID Controller Modules 29

RAID Controller Module Connectors and Features

12 3456 7

811121516 219 10 13 17 1814

Figure 3-1. MD3200 Series SAS RAID Controller Module

Item Component Function

1 SAS OUT port Provides SAS connection for cabling to a downchain

expansion enclosure.

2 SAS IN port 0 Provides host-to-controller SAS connection.

3 SAS IN port 1 Provides host-to-controller SAS connection.

4 SAS IN port 2 Provides host-to-controller SAS connection.

5 SAS IN port 3 Provides host-to-controller SAS connection.

6 MAC Address

label

7 Debug port Dell support only.

8SAS OUT port

link/fault LED

Provides MAC addresses of the management port.

Lights green when all four links are connected.

Lights amber when one to three links are disconnected.

Off when all links in the port are disconnected or cable is disconnected.

30 Planning: RAID Controller Modules

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