Xsan 2
Migration Guide
Third Edition
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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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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.
Review the following information before you upgrade your SAN.
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.
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.
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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