Xsan 2 Migration Guide Third Edition
KKApple Inc. © 2009 Apple Inc. All rights reserved. Under the copyright laws, this manual may not be copied, in whole or in part, without the written consent of Apple. The Apple logo is a trademark of Apple Inc., registered in the U.S. and other countries. Use of the “keyboard” Apple logo (Option-Shift-K) for commercial purposes without the prior written consent of Apple may constitute trademark infringement and unfair competition in violation of federal and state laws.
Contents 5 5 5 5 5 6 6 6 6 7 7 7 7 8 8 8 9 9 10 10 10 10 11 11 11 11 12 12 13 13 13 14 14 15 Upgrading to Xsan 2.2 Before You Begin If You’re Not Running Xsan 2.0 or Later Volume Availability During Upgrade Mac OS X or Mac OS X Server? Intel or PowerPC Processors? Which Procedure? Problems with Xsan Admin? Version Compatibility Upgrading Your SAN Software Step 1: Back up your SAN volumes Step 2: Disable Spotlight on all volumes Step 3: Upgrade one controller to Mac OS X Server version 10.
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.
Intel or PowerPC Processors? To run Xsan 2.2, your metadata controllers must be Intel-based Xserve or Mac Pro systems. You can have client computers with PowerPC processors, but they must run Xsan 2.1.1. You can’t enable extended attributes on a volume that has Xsan 2.1.1 clients. Which Procedure? This migration guide contains two sets of instructions: ÂÂ Follow “Upgrading Your SAN Software” if you already have Intel-based metadata controllers and you want to update Xsan to version 2.
Upgrading Your SAN Software Follow these instructions if all of your metadata controllers have Intel processors. If you have controllers with PowerPC processors, follow the instructions in “Upgrading Both SAN Hardware and Software” on page 10. Summary: 1 Back up your SAN volumes. 2 Disable Spotlight on all volumes. 3 Upgrade one controller to Mac OS X Server version 10.6. 4 Upgrade the same controller to Xsan 2.2. 5 Upgrade the remaining controllers. 6 Reestablish Open Directory replicas.
To identify your Open Directory primary controller: mm If you’re using Xsan Admin to manage users and groups, open Xsan Admin, select Overview in the SAN Assets list, and look for the controller that has the user icon next to its name. Upgrade that controller first. To upgrade the controller to Mac OS X Server v10.6: mm Insert the version 10.6 Mac OS X Server Install Disc in the computer and double-click Install Mac OS X. Step 4: Upgrade the same controller to Xsan 2.2 Install the Xsan 2.
Step 7: Upgrade the SAN clients When your SAN controllers are all running Xsan 2.2, you can upgrade the SAN clients. If you have any client computers with PowerPC processors, they can only be upgraded to Xsan 2.1.1 and you won’t be able to enable extended attributes on your volumes. Note: If you’re upgrading a client running Xsan 1.4.2, remove it from the SAN, install Xsan 2.2 (Xsan 2.1.1 for a PowerPC client), and then add the client back to the SAN.
Step 9: Reenable Spotlight If you disabled Spotlight to upgrade SAN computers to Mac OS X v10.6, reenable it now. To enable Spotlight on a volume: 1 Open Xsan Admin and select Volumes in the SAN Assets list. 2 Select the volume and choose Edit Volume Settings from the Action (gear) pop-up menu. 3 Click to select “Enable on this volume” next to Spotlight. Upgrading Both SAN Hardware and Software Follow these instructions if, as part of your Xsan 2.
To disable Spotlight on a volume: 1 In Xsan Admin, select Volumes in the SAN Assets list. 2 Select the volume and choose Edit Volume Settings from the Action (gear) pop-up menu. 3 Click to deselect “Enable on this volume” next to Spotlight. Step 3: Connect at least two Intel-based computers to the SAN Connect at least two Intel-based Xserve or Mac Pro computers to the SAN’s Ethernet and Fibre Channel networks.
To add a new controller: 1 Open Xsan Admin (the new 2.2 version) on either of the new controllers or on an admin computer and follow the instructions in the SAN Assistant to connect to the existing SAN. 2 When the Xsan Admin window appears, select Computers in the SAN Assets list. 3 Click the Add (+) button. To promote an existing Intel-based client: 1 Open Xsan Admin (the new 2.2 version) and select Computers from the SAN Assets list.
Step 9: Demote the old PowerPC-based controllers Now you can demote the old PowerPC-based controllers to clients or remove them from the SAN. As you demote or remove each controller, any volumes it is hosting fail over to one of the new controllers. To demote a controller: mm Open Xsan Admin (v2.2) on a new controller, choose Computers from the SAN Assets list, select the controller, and choose Make Client from the Action (gear) menu.
To upgrade Mac OS X and Xsan: 1 Use Xsan Admin to remove the client from the SAN. 2 Install Mac OS X v10.6 or Mac OS X Server v10.6 on the client computer. Mac OS X v10.6 runs only on computers with Intel processors. 3 Install Xsan 2.2 on the client. 4 Use Xsan Admin to add the client back to the SAN. If Xsan Admin displays a message about “Incorrect Search Policy,” use System Preferences > Accounts > Login Options (Mac OS X v10.6) or the Directory Utility application (Mac OS X v10.
Step 14: Recreate your MultiSAN configuration If you use the MultiSAN capability of Xsan to host volumes on subsets of the available controllers, you temporarily adjusted volume failover priorities in step 7 so all volumes are hosted by all new controllers during migration. You can now adjust failover priorities to recreate your MultiSAN configuration. To specify which controllers host a volume: 1 Open Xsan Admin (v2.2) and select Volumes in the SAN Assets list.
