Dell PowerVault MD3200 Series Guide de référence rapide

Dell™ PowerVault™ MD3200

and MD3220 Storage Arrays

Deployment Guide

book.book Page 1 Wednesday, June 2, 2010 11:48 AM

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 document is subject to change without notice.

Reproduction of these materials in anymanner whatsoever without the written permissionof DellInc.

is strictly forbidden.

Trademarks used in this text: Dell, the DELL logo, and PowerVault are trademarks of Dell Inc.; Intel

and Pentium are registered trademarks of Intel Corporation in the U.S. and other countries; Microsoft,

Windows,andWindowsServerareeithertrademarksorregisteredtrademarksofMicrosoftCorporation

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

ofNovell,Inc.,intheUnitedStatesandothercountries;VMwareisaregisteredtrademarkortrademark

(the “Marks”) of VMware, Inc. in the United States and/or other jurisdictions; Citrix is a trademark

of Citrix Systems, Inc. and/or more of its subsidiaries, and may be registered in the United States

Patent and Trademark Office and in other countries.

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.

June 2010 Rev. A00

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Contents 3

Contents

1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . 5

System Requirements . . . . . . . . . . . . . . . . . . . 5

Management Station Requirements . . . . . . . . . 5

Introduction to Storage Arrays . . . . . . . . . . . . . . 6

2 Hardware Installation . . . . . . . . . . . . . . . . 9

Storage Configuration Planning . . . . . . . . . . . . . . 9

About the Storage Array Connections. . . . . . . . . . 10

Cabling the Storage Array . . . . . . . . . . . . . . . . 10

Redundant and Non-Redundant

Configurations . . . . . . . . . . . . . . . . . . . 10

Single Controller Configurations . . . . . . . . . . 11

Dual Controller Configurations . . . . . . . . . . . 14

Cabling PowerVault MD1200 Series Expansion

Enclosures . . . . . . . . . . . . . . . . . . . . . . . . 20

Expanding With Previously Configured

PowerVault MD1200 Series Expansion

Enclosures . . . . . . . . . . . . . . . . . . . . . 20

Expanding With New PowerVault MD1200

Series Expansion Enclosures. . . . . . . . . . . . 22

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4Contents

3 Software Installation . . . . . . . . . . . . . . . 25

Installing MD Storage Software. . . . . . . . . . . . . 25

Graphical Installation (Recommended). . . . . . . 26

Console Installation . . . . . . . . . . . . . . . . . 26

Silent Installation . . . . . . . . . . . . . . . . . . 27

4 Post Installation Tasks. . . . . . . . . . . . . . 29

Verifying Storage Array Discovery . . . . . . . . . . . 30

Initial Setup Tasks. . . . . . . . . . . . . . . . . . 30

5 Uninstalling Software . . . . . . . . . . . . . . 33

Uninstalling From Microsoft Windows . . . . . . . . . 33

Uninstalling From Linux . . . . . . . . . . . . . . . . . 34

A Appendix—Load Balancing . . . . . . . . . . 35

Windows Load Balance Policy . . . . . . . . . . . . . 35

Round Robin With Subset. . . . . . . . . . . . . . 35

Least Queue Depth With Subset . . . . . . . . . . 35

Changing Load Balance Policies in

Windows Sever 2008 . . . . . . . . . . . . . . . . 36

Setting Load Balance Policies in Linux . . . . . . . . . 37

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Introduction 5

Introduction

This guide provides information about deploying Dell™ PowerVault™

MD3200 and MD3220 storage arrays. The deployment process includes:

• Hardware installation

• Modular Disk Storage Manager (MDSM) software installation

• Initial system configuration

Other information provided include system requirements, storage array

organization, and utilities.

NOTE: For more information on product documentation, see

support.dell.com/manuals.

MDSM enables an administrator to configure and monitor storage arrays for

optimum usability. The version of MDSM included on the MD3200 Series

resource media can be used to manage both the MD3200 Series and the

earlier generation MD3000 Series storage arrays. MDSM is compatible with

both Microsoft®Windows®and Linux operating systems.

System Requirements

Before installing and configuring the MD3200 Series hardware and software,

ensure that the operating system is supported and minimum system

requirements are met. For more information, see the Support Matrix at

support.dell.com/manuals.

Management Station Requirements

A management station uses MDSM to configure and manage storage arrays

across the network. A management station must meet the following

minimum system requirements:

•Intel

Pentium

or an equivalent processor (333 MHz or faster) with 512

MB RAM (1024 MB recommended)

• 1 GB disk space

• Display resolution of 1024x768 with 16 million colors (1280x1024 32-bit

recommended)

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6Introduction

• Microsoft Windows, Red Hat

Enterprise Linux

, and SUSE

Linux

Enterprise Server. Operating system installations can be either native or

hypervisior guest configurations. Supported hypervisors include Microsoft

Hyper-V™, Citrix

XenServer™, and VMware

. For information about the

supported versions, see the

Support Matrix

support.dell.com/manuals

• Administrator or equivalent permissions

Introduction to Storage Arrays

A storage array includes various hardware components, such as physical disks,

RAID controller modules, fans, and power supplies, gathered into enclosures.

An enclosure containing physical disks accessed through RAID controller

modules is called a storage array.

One or more host servers attached to the storage array can access the data on

the storage array. You can also establish multiple physical paths between the

host(s) and the storage array so that loss of any single path (for example,

through failure of a host server port) does not result in loss of access to data

on the storage array.

The storage array is managed by MDSM running on a:

• Host server—On a host server system, MDSM and the storage array

communicate management requests and event information using

SAS connections.

• Management station—On a management station, MDSM communicates

with the storage array either through an Ethernet connection to the

storage array management port or though an Ethernet connection to a

host server, which passes management information between the

management station and the storage array using SAS connections.

Using MDSM, you can configure the physical disks in the storage array into

logical components called disk groups and then divide the disk groups into

virtual disks. Disk groups are created in the unconfigured capacity of a storage

array. Virtual disks are created in the free capacity of a disk group.

Unconfigured capacity comprises of physical disks not already assigned to a

disk group. When a virtual disk is created using unconfigured capacity, a disk

group is automatically created. If the only virtual disk in a disk group is

deleted, the disk group is also deleted. Free capacity is space in a disk group

that is not assigned to any virtual disk.

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Introduction 7

Data is written to the physical disks in the storage array using RAID

technology. RAID levels define the way in which data is written to physical

disks. Different RAID levels offer different levels of accessibility, redundancy,

and capacity. You can set a specified RAID level for each disk group and

virtual disk on your storage array.

For more information about using RAID and managing data in your storage

solution, see the

Owner’s Manual

support.dell.com/manuals

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8Introduction

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Hardware Installation 9

Hardware Installation

Before using this guide, ensure that you review the instructions in the:

•

Getting Started Guide

—The

Getting Started Guide

that shipped with the

storage array provides information to configure the initial setup of the system.

• Planning section of the

Owner’s Manual—

The planning section provides

information

about important concepts you should know before setting up

your storage solution.

Storage Configuration Planning

Consider the following before installing your storage array:

• Evaluate data storage needs and administrative requirements.

• Calculate availability requirements.

• Decide the frequency and level of backups, such as weekly full backups

with daily partial backups.

• Consider storage array options, such as password protection and e-mail

alert notifications for error conditions.

• Design the configuration of virtual disks and disk groups according to a data

organization plan. For example, use one virtual disk for inventory, a second

for financial and tax information, and a third for customer information.

• Decide whether to allow space for hot spares, which automatically replace

failed physical disks.

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10 Hardware Installation

About the Storage Array Connections

The storage array is connected to a host using two hot-swappable RAID

controller modules. The RAID controller modules are identified as RAID

controller module 0 and RAID controller module 1. For more information, see

the

Getting Started

Guide.

Each RAID controller module has four SAS In port connectors that provide

SAS connections to the host or node. Each RAID controller module also

contains an Ethernet management port and a SAS Out port connector. The

Ethernet management port allows you to install a dedicated management

station (server or stand-alone system). The SAS Out port allows you to

connect the storage array to optional expansion enclosures for additional

storage capacity. For more information, see the

Getting Started

Guide

Each PowerVault MD3200 Series storage array can be expanded to a

maximum of 96 physical disks through a maximum of seven PowerVault

MD1200 Series expansion enclosures.

NOTE: When you connect a host server to a storage array SAS In port connector,

any Out port connector of the server's host bus adapter (HBA) can be used.

Cabling the Storage Array

You can cable the storage array to host servers with:

• Single path data configuration—A single path configuration allows you to

connect a maximum of eight hosts. This is a non-redundant configuration.

• Dual path data configuration—A dual path configuration allows you to

connect a maximum of four hosts.

You choose the data configuration based on:

• Number of hosts required

• Level of data redundancy required

Redundant and Non-Redundant Configurations

Non-redundant configurations are configurations that provide only a single

data path from a host to the storage array. This type of configuration is only

recommended for non-critical data storage. Path failure from a failed or

removed cable, a failed HBA, or a failed or removed RAID controller module

results in loss of host access to storage on the storage array.

book.book Page 10 Wednesday, June 2, 2010 11:48 AM

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