Apple Xsan User Manual download pdf (Page 37)

Follow step by step instructions for setting up a shared

volume on an Xsan SAN.

This chapter explains how to connect the SAN networks, prepare RAID arrays (LUNs),

use the Xsan Admin application, set up a SAN, and create a shared volume. This

chapter also tells you how to administer Xsan remotely, rename a SAN, remove a SAN,

set up additional SANs, and manage multiple SANs.

Connecting Computers and Storage Devices

Before you open Xsan Admin to congure your SAN, you must connect client

computers, controller computers, and storage devices to the SAN’s Fibre Channel

and Ethernet networks. In addition, make sure your networks meet the requirements

summarized in “Fibre Channel Fabric” on page 22 and “Ethernet TCP/IP Network” on

page 23.

Preparing LUNs

New RAID systems often come congured as one or more RAID arrays. So, out of the

box, your RAID system might provide LUNs that you can use for most SAN applications.

For details, see the documentation for your RAID system. Unless you have well-dened,

special needs, no other LUN preparation is needed.

To set up other combinations of RAID arrays or slices, use the management application

that comes with your RAID systems to create the arrays before you add the resulting

LUNs to your SAN’s storage pools. For information about choosing a RAID scheme,

see “Choosing RAID Schemes for LUNs” on page 28.

Note: Don’t use Disk Utility to format arrays or slices for use with Xsan. LUNs are

labeled and initialized when you add them to a storage pool using Xsan Admin.

After they are labeled, the LUNs can’t be modied using Disk Utility.

Be sure to create arrays of the same size if you plan to add them to the same storage

pool. For more information, see “Assigning LUNs to Anity Tags” on page 29.

Setting Up a Storage Area Network

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Apple Xsan User Manual Page 37