Dell PowerVault MD3200 Series Guida di riferimento rapido

Dell PowerVault MD3200 and

MD3220 Storage Arrays

Deployment Guide

book.book Page 1 Thursday, July 18, 2013 5:56 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.

__________________

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.

2013 - 07 Rev. A02

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Contents 3

Contents

1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . 7

System Requirements . . . . . . . . . . . . . . . . . . . 7

Management Station Requirements . . . . . . . . . 7

Introduction to Storage Arrays . . . . . . . . . . . . . . 8

2 Hardware Installation . . . . . . . . . . . . . . . 11

Planning the Storage Configuration. . . . . . . . . . . 11

Connecting the Storage Array . . . . . . . . . . . . . . 12

Cabling the Storage Array . . . . . . . . . . . . . . . . 12

Redundant and Non-Redundant Configurations . . 13

Single Controller Configurations . . . . . . . . . . 13

Dual Controller Configurations . . . . . . . . . . . 16

Cabling PowerVault MD1200 Series Expansion

Enclosures . . . . . . . . . . . . . . . . . . . . . . . . 22

Expanding With Previously Configured

PowerVault MD1200 Series Expansion

Enclosures . . . . . . . . . . . . . . . . . . . . . 22

Expanding With New PowerVault MD1200

Series Expansion Enclosures. . . . . . . . . . . . 24

3 Installing PowerVault MD Storage

Software . . . . . . . . . . . . . . . . . . . . . . . . . 27

Graphical Installation (Recommended) . . . . . . 28

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4Contents

Console Installation . . . . . . . . . . . . . . . . . 29

Silent Installation . . . . . . . . . . . . . . . . . . 29

Upgrading PowerVault MD Storage Software . . . . . 30

4 Post Installation Tasks. . . . . . . . . . . . . . 31

Before You Begin. . . . . . . . . . . . . . . . . . . . . 31

iSCSI Configuration Worksheet . . . . . . . . . . . . . 32

IPv4 Settings—Worksheet . . . . . . . . . . . . . 33

IPv6 Settings—Worksheet . . . . . . . . . . . . . 34

Configuring iSCSI on Your Storage Array . . . . . . . . 35

Automatic Configuration Using the Modular

Disk Configuration Utility . . . . . . . . . . . . . . 36

Post Connection Establishment Steps. . . . . . . . . . 39

Guidelines For Configuring Your Network For iSCSI . . 40

Microsoft Windows Host Setup . . . . . . . . . . . . . 40

Using A DHCP server . . . . . . . . . . . . . . . . 40

Using static IP addressing . . . . . . . . . . . . . 40

Using A DNS server. . . . . . . . . . . . . . . . . 41

Using A WINS Server . . . . . . . . . . . . . . . . 41

Linux Host Setup . . . . . . . . . . . . . . . . . . . . . 42

Using DHCP . . . . . . . . . . . . . . . . . . . . . 42

Using A Static IP Address . . . . . . . . . . . . . 42

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Contents 5

5 Uninstalling PowerVault MD

Storage Software . . . . . . . . . . . . . . . . . . 45

Uninstalling MD Storage Software From Windows . . 45

Uninstalling MD Storage Software From Linux . . . . . 46

6 Getting Help. . . . . . . . . . . . . . . . . . . . . . . 47

Locating Your System Service Tag . . . . . . . . . . . 47

Contacting Dell . . . . . . . . . . . . . . . . . . . . . 47

Documentation Feedback . . . . . . . . . . . . . . . . 48

A Appendix—Load Balancing. . . . . . . . . . . 49

Windows Load Balance Policy . . . . . . . . . . . . . 49

Round Robin With Subset . . . . . . . . . . . . . 49

Least Queue Depth With Subset . . . . . . . . . . 50

Changing Load Balance Policies in

Windows Sever 2008 . . . . . . . . . . . . . . . . 50

Setting Load Balance Policies in Linux. . . . . . . 51

B Appendix—Manual Configuration

of iSCSI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Step 1: Discover the Storage Array

(Out-of-band Management Only) . . . . . . . . . . . . 54

Default Management IPv4 Port Settings . . . . . . 54

Automatic Storage Array Discovery . . . . . . . . 55

Manual Storage Array Discovery . . . . . . . . . 56

Setting Up the Array . . . . . . . . . . . . . . . . 56

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6Contents

Step 2: Configure the iSCSI Ports on the

Storage Array. . . . . . . . . . . . . . . . . . . . . . . 57

Step 3: Perform Target Discovery From

the iSCSI Initiator . . . . . . . . . . . . . . . . . . . . 59

Step 4: Configure Host Access. . . . . . . . . . . . . . 61

Understanding CHAP Authentication . . . . . . . . . . 62

What is CHAP? . . . . . . . . . . . . . . . . . . . 62

Target CHAP. . . . . . . . . . . . . . . . . . . . . 62

Mutual CHAP . . . . . . . . . . . . . . . . . . . . 62

CHAP Definitions . . . . . . . . . . . . . . . . . . 63

Step 5: Configure CHAP Authentication on the

Storage Array (Optional) . . . . . . . . . . . . . . . . . 63

Configuring Target CHAP Authentication on

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

Configuring Mutual CHAP Authentication on

the Storage Array . . . . . . . . . . . . . . . . . . 64

Step 6: Configure CHAP Authentication on the

Host Server (Optional) . . . . . . . . . . . . . . . . . . 65

Step 7: Connect to the Target Storage Array From

the Host Server . . . . . . . . . . . . . . . . . . . . . . 69

Step 8: (Optional) Set Up In-Band Management. . . . . 72

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Introduction 7

Introduction

This guide provides information about deploying Dell PowerVault MD3200

and Dell PowerVault MD3220 storage arrays. The deployment process

includes:

• Hardware installation

• Modular Disk Storage Manager (MDSM) software installation

• Initial system configuration

Other information includes system requirements, storage array organization,

and utilities.

NOTE: For more information on product documentation, see

dell.com/support/manuals.

MDSM enables an administrator to configure and monitor storage arrays for

optimum usability. The version of MDSM included on the PowerVault MD

series resource media can be used to manage both the PowerVault MD3200

series and the earlier PowerVault MD series storage arrays. MDSM is

compatible with both Microsoft Windows and Linux operating systems.

System Requirements

Before installing and configuring the PowerVault MD3200 series hardware

and software, ensure that a supported operating system is installed and the

minimum system requirements are met. For more information, see the

Support Matrix at dell.com/support/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 (1333 MHz or faster) with 512

MB RAM (1024 MB recommended).

• 1 GB disk space.

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8Introduction

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

recommended).

• Microsoft Windows, Red Hat Enterprise Linux, or SUSE Linux Enterprise

Server.

NOTE: Supported operating systems include both native and guest operating

systems.

NOTE: Supported hypervisors include Microsoft Hyper-V, Citrix XenServer,

and VMware ESX and ESXi. For information about the supported versions, see

the

Support Matrix

at dell.com/support/manuals.

• Administrator or equivalent permissions.

Introduction to Storage Arrays

An enclosure containing physical disks accessed through RAID controller

modules is called a storage array. A storage array includes various hardware

components, such as physical disks, RAID controller modules, fans, and

power supplies, gathered into enclosures.

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 through an Ethernet connection to a

host server. The Ethernet connection 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.

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Introduction 9

Unconfigured capacity comprises 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.

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

dell.com/support/manuals

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10 Introduction

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