Xsan2
Migration Guide
Second Edition
K Apple Inc.
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4Upgrading to Xsan 2.1
4Before You Begin
4If You’re Already Using Xsan 2
4If You’re Currently Using Xsan 1.3 or Earlier
4Volume Availability During Upgrade
4Mac OS X or Mac OS X Server?
5Version Compatibility
5Notation Conventions
6 Upgrading from Xsan 1.4 to Xsan 2.1
7Step 1: Back up your SAN volumes
7Step 2: Unmount and stop volumes
7Step 3: Verify volume integrity
7Step 4: Update SAN computers to Xsan 1.4.2
8Step 5: Upgrade SAN computers to Mac OS X v10.5 Leopard
8Step 6: Update SAN computers to Mac OS X 10.5.3 or later
8Step 7: Install Xsan 2 on SAN computers
8Step 8: Update SAN computers to Xsan 2.1
9Step 9: Run the SAN setup assistant
9Step 10: Wait for the volume upgrade to finish
10Step 11: (Optional) Enable Spotlight on SAN volumes
10Step 12: (Optional) Adjust controller failover priorities
10Step 13: Remount volumes on SAN computers
11Upgrading from Xsan 2 to Xsan 2.1
11 Step 1: Update SAN computers to Mac OS X v10.5.3 or later 11 Step 2: Update metadata controllers to Xsan 2.1
11 Step 3: Update clients to Xsan 2.1
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This guide shows you how to upgrade your Xsan 1.4 storage area network (SAN) to Xsan 2.1.
Follow the instructions in this guide to upgrade an existing Xsan 1.4 SAN and its volumes to Xsan 2.1 on Mac OS X or Mac OS X Server version 10.5 Leopard.
Review the following information before you upgrade your SAN.
You can skip to “Upgrading from Xsan 2 to Xsan 2.1” on page 11.
This guide shows you how to upgrade from Xsan 1.4. For help upgrading to Xsan 1.4 from an earlier version of Xsan, see the previous Xsan Migration Guide, available at www.apple.com/server/documentation.
You can update Xsan 2 to Xsan 2.1 without interrupting volume availability. However, upgrading from Xsan 1.4 includes activities such as converting file-system data structures that prevent users from accessing volumes during the upgrade.
Important: You must unmount your SAN volumes from clients during the upgrade from Xsan 1.4. The file-system conversion phase of the upgrade can take from less than an hour to more than a day, depending on the size of your volumes. Be sure to notify client users that the volumes will be unavailable.
Mac OS X or Mac OS X Server?
The Xsan file system, the Xsan Admin application, and the Xsan User Quotas application run identically on Mac OS X and Mac OS X Server. Any statement in this guide about Mac OS X also applies to Mac OS X Server.
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