Citrix Systems 6.1.0 manual

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7.3. Upgrading XenServer to Version 5.6 or Earlier Using XenCenter

If you are upgrading XenServer hosts to version 5.6 or earlier, then you must do so manually. The Rolling Pool Upgrade wizard is not available in XenServer versions 5.6 and earlier.

Important:

Performing a rolling pool upgrade manually requires extremely careful planning. Before you begin, be sure to read Section 7.1.2.1, “Planning an Upgrade Path” and then to plan your upgrade path accordingly.

To manually upgrade a pool of XenServer hosts using XenCenter:

1.Start with the pool master. Ensure that no VMs are running on the master. Shut down, suspend or migrate VMs to other hosts in the pool.

2.Shut down the pool master.

Important:

XenCenter will be unable to contact the pool master until the upgrade of the master is complete.

3.Boot the pool master using the XenServer installation media and method of your choice (such as, installation CD or network). Follow the XenServer installation procedure (see Chapter 3, Installing XenServer and XenCenter) until the installer offers you the option to upgrade. Choose to upgrade.

Warning:

Be absolutely sure to select the upgrade option so as to avoid losing any existing data.

Warning:

If anything interrupts the upgrade of the pool master or if the upgrade fails for any reason, do not attempt to proceed with the upgrade. Reboot the pool master and restore to a working version of the master. For details on restoring a XenServer host, see the XenServer Administrator's Guide.

You will not be required to re-enter any settings during the setup procedure. The upgrade process follows the first-time installation process but several setup steps are bypassed, and the existing settings for networking configuration, system time, and so on are retained.

Once your pool master restarts, normal service is restored after a few minutes. XenCenter is then able to contact the pool master.

4.On the pool master, start or resume any shut down or suspended VMs. Migrate any VMs that you wish back to the pool master.

5.Select the next XenServer host in your upgrade path. Ensure that no VMs are running on the host. Shut down, suspend or migrate VMs to other hosts in the pool, as planned.

6.Shut down the host.

7.Follow the upgrade procedure for the host, as described for the master in Step 3.

Note:

If the upgrade of a host that is not the master fails or is interrupted, you do not need to revert. Reboot the host, and restart the upgrade.

8.On the host, start or resume any shutdown or suspended VMs. Migrate any VMs that you wish back to the host.

9.Repeat Steps 5 – 8 for the rest of the hosts in the pool.

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Contents Citrix XenServer 6.1.0 Installation Guide Trademarks Contents Using Scvmm and Scom with XenServer Boot From SAN Environments Welcome Benefits of Using XenServerAdministering XenServer About This DocumentNew Features in XenServer XenServer EditionsXenServer Documentation Guest EnhancementsReferences System Requirements System RequirementsXenServer Host System Requirements XenCenter System Requirements Supported Guest Operating SystemsInstalling XenServer and XenCenter Installation Media and MethodsInstalling the XenServer Host To install or upgrade the XenServer hostPage To install XenCenter Installing XenCenterHost Partition Format Connecting XenCenter to the XenServer Host To connect XenCenter to the XenServer hostXenServer Hosts with Local Storage Installation and Deployment ScenariosHigh-level procedure Basic hardware requirementsPools of XenServer Hosts with Shared Storage XenServer Hosts with Shared NFS StorageConfiguring your iSCSI storage XenServer Hosts with Shared iSCSI StorageConfiguring an iSCSI IQN for each XenServer host Xe pool-param-set uuid=pooluuid default-SR=iscsisharedsruuid XenServer and IntelliCache Enabling on Host InstallationIntelliCache Deployment To enable local caching, enter the following commands Converting an Existing Host to Use Thin ProvisioningVM Boot Behavior Implementation Details and TroubleshootingXe sr-list params=local-cache-sr,uuid,name-label How to install the Integration Suite Supplemental Pack Using Scvmm and Scom with XenServerIntegration Requirements for Scvmm Integration Requirements for Scom Rolling Pool Upgrades Upgrading XenServerPage Before You Upgrade Before you begin your rolling pool upgrade Upgrading XenServer Hosts Using the xe CLITo upgrade a pool of XenServer hosts using the xe CLI Upgrading a Single XenServer Host Using the xe CLI Before You Upgrade a Single XenServer HostTo empty the CD/DVD drive of a VM using the xe CLI Upgrading a Single XenServer Host Using the xe CLITo upgrade a single XenServer host using the xe CLI Page Upgrading LVM-based SRs using the xe CLI Upgrading LVM Storage from XenServer 5.0 or EarlierBefore You Apply an Update or Hotfix Applying Updates and Hotfixes to XenServerBefore you begin updating To update individual hosts using the xe CLI To update individual hosts using XenCenterUpdating Individual XenServer Hosts To update a pool of hosts using XenCenter Updating a Pool of XenServer HostsTo update a pool of XenServer hosts using the xe CLI Activating a Free XenServer Product Licensing XenServerTo activate a free XenServer product Licensing XenServer Editions To license XenServer Advanced editions and higherTo configure licensing for XenServer hosts using the xe CLI To configure licensing for XenServer hosts using XenCenterAdditional Licensing Information Grace Period Appendix A. Troubleshooting To capture and save the log fileAppendix B. Boot From SAN Environments Configuring your PXE Environment for XenServer Installation Appendix C. PXE Boot InstallationsTo configure your Tftp server Creating an answer file for unattended PXE installation Preparing the destination systemElement Description Required? Element Description Required? Element Proto dhcp or static
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