MEM-User_Guide.pdf

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EqualLogic Multipathing Extension Module
Installation and User Guide
Version 1.0
For vSphere Version 4.1
Copyright 2010 Dell, Inc. All rights reserved.
EqualLogic is a registered trademark of Dell, Inc.
Dell is a trademark of Dell, Inc.
All trademarks and registered trademarks mentioned herein are the property of their respective owners.
Information in this document is subject to change without notice.
Reproduction in any manner whatsoever without written permission is strictly forbidden.
July 2010
Part Number: 110-6030-R3
Table of Contents
Chapter 1 Overview of the EqualLogic Multipathing Extension Module ....................................................... 1-1
EqualLogic MEM Configuration Model .......................................................................................................... 1-1
Chapter 2 Installing the EqualLogic Multipathing Extension Module............................................................ 2-1
Prerequisites...................................................................................................................................................... 2-1
Obtaining the EqualLogic Multipathing Extension Module............................................................................. 2-1
Using the EqualLogic Plugin with HBAs......................................................................................................... 2-1
Unsupported VMware Environments ............................................................................................................... 2-2
Installation Considerations................................................................................................................................ 2-2
Software iSCSI Configuration Requirements................................................................................................... 2-2
Installing Or Upgrading the EqualLogic MEM On Your VMware ESX Or ESXi Server............................... 2-3
Installation Procedure with vCenter Update Manager...................................................................................... 2-3
Installation Procedure with setup.pl.................................................................................................................. 2-4
Tasks Performed During the Installation Process............................................................................................. 2-5
Verifying the Installation .................................................................................................................................. 2-5
Configuring Your Network for the EqualLogic MEM Plugin.......................................................................... 2-6
Chapter 3 Configuring the EqualLogic Multipathing Extension Module ....................................................... 3-1
Setting Configuration Values............................................................................................................................ 3-1
Viewing Configuration Values .................................................................................................................. 3-1
EHCM Configuration File ................................................................................................................................ 3-2
Diagnostics........................................................................................................................................................ 3-2
Chapter 4 Known Issues and Limitations........................................................................................................... 4-1
Failure On One Physical Network Port Can Prevent iSCSI Session Rebalancing ........................................... 4-1
Installation Not Possible From VM Running on the ESX Server .................................................................... 4-1
iSCSI HBA Limitations .................................................................................................................................... 4-1
Appendix A Sample Configuration Commands ................................................................................ A-1
Example 1: Configuring a 4-Port Nic Using the VMware Software iSCSI Initiator....................................... A-1
Example 2: Configuring a Two-Port Broadcom 5709 with iSCSI Offload Enabled....................................... A-2
iii
Preface
This manual describes how to install, configure, and use the EqualLogic Multipathing Extension Module for
VMware® vSphere (hereafter referred to as the EqualLogic MEM). The EqualLogic MEM enables you to use
enhanced multipathing on supported VMware environments connected to PS Series groups.
Audience
Dell intends this manual for administrators responsible for managing VMware vSphere environments attached to a
PS Series group. It is expected that you understand:
•
•
Administration of PS Series groups
VMware ESX administration
Organization
The organization of this guide is as follows:
•
•
Chapter 1,
Overview of the EqualLogic Multipathing Extension Module
– Describes the functions of the
EqualLogic MEM.
Chapter 2,
Installing the EqualLogic Multipathing Extension Module
– Describes the installation procedures,
including prerequisites, configuring the VMware ESX environment, installing the kit, and verifying the
installation.
Chapter 3,
Configuring the EqualLogic Multipathing Extension Module
– Describes configuration tasks.
Chapter 4,
Known Issues and Limitations
– Describes known issues and limitations for this release.
Appendix A,
Sample Configuration Commands
– Shows examples of the
setup.pl
script.
•
•
•
Conventions
Documentation conventions are shown in the following table.
Convention
fixed width
group_ip_address
Convention
Command, parameter, output, file name, link, button, field, URL address, or e-mail address.
Variable. Replace the text in italics with the actual object name or identifier.
Overview of EqualLogic Products
Thank you for your interest in EqualLogic™ PS Series storage products. We hope you will find them intuitive and
simple to configure and manage.
PS Series arrays optimize resources by automating performance and network load balancing. Additionally, PS
Series arrays offer all-inclusive array management software, host software, and free firmware updates. The features
and products described next are available at no additional cost.
PS Series Software
•
Firmware – Installed on each array, PS Series firmware software allows you to manage your storage
environment and provides capabilities such as volume snapshots, cloning, and replication to ensure data hosted
on the arrays is protected in the event of an error or disaster.
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