Apple Xsan 2 User Manual

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Xsan 2

Migration Guide

Third Edition

KKApple Inc.

© 2009 Apple Inc. All rights reserved.

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019-1493/2009-08-28

Apple Xsan 2 User Manual

Contents

5 Upgrading to Xsan 2.2

5 Before You Begin

5If You’re Not Running Xsan 2.0 or Later

5Volume Availability During Upgrade

5Mac OS X or Mac OS X Server?

6Intel or PowerPC Processors?

6 Which Procedure?

6Problems with Xsan Admin?

6Version Compatibility

7Upgrading Your SAN Software

7 Step 1: Back up your SAN volumes

7 Step 2: Disable Spotlight on all volumes

7Step 3: Upgrade one controller to Mac OS X Server version 10.6

8Step 4: Upgrade the same controller to Xsan 2.2

8Step 5: Upgrade the remaining controllers

8Step 6: Reestablish Open Directory replicas

9Step 7: Upgrade the SAN clients

9Step 8: Enable extended attributes

10Step 9: Reenable Spotlight

10Upgrading Both SAN Hardware and Software

10Step 1: Back up your SAN volumes

10Step 2: Disable Spotlight on all volumes

11Step 3: Connect at least two Intel-based computers to the SAN

11Step 4: Upgrade Mac OS X on the new controllers

11Step 5: Install Xsan 2.2 on the new controllers

11Step 6: Add the new controllers to the SAN

12Step 7: Adjust volume failover priorities

12Step 8: Make an Intel-based controller the primary controller

13Step 9: Demote the old PowerPC-based controllers

13Step 10: Add the remaining Intel-based computers to the SAN

13Step 11: Upgrade the SAN clients

14Step 12: Enable extended attributes

14Step 13: Reenable Spotlight

15Step 14: Recreate your MultiSAN configuration

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Upgrading to Xsan 2.2

This guide shows you how to upgrade your Xsan 2 storage area network (SAN) to Xsan 2.2.

Follow the instructions in this guide to upgrade an existing Xsan 2 SAN and its volumes to Xsan 2.2 on Mac OS X or Mac OS X Server version 10.5 or 10.6.

Important: For the latest migration information and troubleshooting tips, see the Knowledge Base article at support.apple.com/kb/HT1127.

Before You Begin

Review the following information before you upgrade your SAN.

If You’re Not Running Xsan 2.0 or Later

This guide shows you how to upgrade from Xsan 2.0 or later. For help upgrading from an earlier version of Xsan, see the Xsan 2 Migration Guide, Second Edition, available at www.apple.com/xsan/resources.

Volume Availability During Upgrade

The instructions in this guide show you how to upgrade your SAN’s metadata controllers one at a time so that existing volumes remain available. As each controller is upgraded, volumes it is hosting fail over to standby controllers. However, if you enable extended attributes on a volume after upgrading to Xsan 2.2, the volume is not mounted on clients until the conversion process finishes.This process can take hours, depending on the number of files on the volume;the volume is not available during this time.

Mac OS X or Mac OS X Server?

The Xsan file system, the Xsan Admin application, and the Xsan User Quotas application run on both Mac OS X and Mac OS X Server. Unless otherwise indicated, a statement in this guide about Mac OS X also applies to Mac OS X Server. However, if you use Xsan Admin to manage SAN users and groups, you must run Mac OS X Server on your metadata controllers to create the Open Directory master and its replicas.

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