Citrix Systems 6.1.0 manual Configuring an iSCSI IQN for each XenServer host

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Before you create an SR, you need to configure the iSCSI storage. To be part of a pool, the iSCSI storage must have a static IP address or be DNS addressable. You will also need to provide an iSCSI target LUN on the SAN for the VM storage, and then configure XenServer hosts to be able to see and access it. Both the iSCSI target and each iSCSI initiator on each XenServer host must have a valid and unique iSCSI Qualified Name (IQN). For configuration details, it is best to see your vendor documentation.

Configuring an iSCSI IQN for each XenServer host

Upon installation, XenServer automatically attributes a unique IQN to each host. If you need to adhere to a local administrative naming policy, you can change the IQN by entering the following on the host console:

xe-set-iscsi-iqn <iscsi_iqn>

Or, you can use the xe CLI by entering the following:

xe host-param-set uuid=<host_uuid> other-config-iscsi_iqn=<iscsi_iqn>

To create an SR on the iSCSI share at the pool level using XenCenter:

Warning:

When using XenCenter to create SRs for iSCSI and NetApp storage, any existing contents of the volume are destroyed.

1.On the Resources pane, select the pool. On the toolbar, click the New Storage button. The New Storage Repository wizard opens.

2.Under Virtual disk storage, choose Software iSCSI as the storage type. Choose Next to continue.

3.Enter a name for the new SR and then the IP address or DNS name of the iSCSI target.

Note:

The iSCSI storage target must be configured to enable every XenServer host in the pool to have access to one or more LUN(s).

4.If you have configured the iSCSI target to use CHAP authentication, enter the User and Password.

5.Click the Discover IQNs button, and then choose the iSCSI target IQN from the Target IQN list.

Warning:

The iSCSI target and all servers in the pool must have unique IQNs.

6.Click the Discover LUNs button, and then choose the LUN on which to create the SR from the Target LUN list.

Warning:

Each individual iSCSI storage repository must be contained entirely on a single LUN, and may not span more than one LUN. Any data present on the chosen LUN will be destroyed.

7.Click Finish.

The new SR appears in the Resources pane, at the pool level.

To create an SR on the iSCSI share at the pool level using the xe CLI:

1.On the console of any server in the pool, run the command:

xe sr-create name-label=<name_for_sr>\

content-type=user device-config-target=<iscsi_server_ip_address>\ device-config-targetIQN=<iscsi_target_iqn>\ device-config-localIQN=<iscsi_local_iqn>\

type=lvmoiscsi shared=true device-config-LUNid=<lun_id>

The device-config-targetargument refers to the name or IP address of the iSCSI server. The device-config-LUNidargument can be a list of LUN IDs (separated by commas). Since the shared

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Contents Citrix XenServer 6.1.0 Installation Guide Trademarks Contents Using Scvmm and Scom with XenServer Boot From SAN Environments Benefits of Using XenServer Administering XenServerWelcome About This DocumentNew Features in XenServer XenServer EditionsXenServer Documentation Guest EnhancementsReferences XenServer Host System Requirements System RequirementsSystem 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 Host Partition Format Installing XenCenterTo install XenCenter Connecting XenCenter to the XenServer Host To connect XenCenter to the XenServer hostInstallation and Deployment Scenarios High-level procedureXenServer Hosts with Local Storage 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 IntelliCache Deployment Enabling on Host InstallationXenServer and IntelliCache 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 Integration Requirements for Scvmm Using Scvmm and Scom with XenServerHow to install the Integration Suite Supplemental Pack Integration Requirements for Scom Rolling Pool Upgrades Upgrading XenServerPage Before You Upgrade To upgrade a pool of XenServer hosts using the xe CLI Upgrading XenServer Hosts Using the xe CLIBefore you begin your rolling pool upgrade Upgrading a Single XenServer Host Using the xe CLI Before You Upgrade a Single XenServer HostTo upgrade a single XenServer host using the xe CLI Upgrading a Single XenServer Host Using the xe CLITo empty the CD/DVD drive of a VM using the xe CLI Page Upgrading LVM-based SRs using the xe CLI Upgrading LVM Storage from XenServer 5.0 or EarlierBefore you begin updating Applying Updates and Hotfixes to XenServerBefore You Apply an Update or Hotfix Updating Individual XenServer Hosts To update individual hosts using XenCenterTo update individual hosts using the xe CLI To update a pool of hosts using XenCenter Updating a Pool of XenServer HostsTo update a pool of XenServer hosts using the xe CLI To activate a free XenServer product Licensing XenServerActivating a Free XenServer Product Licensing XenServer Editions To license XenServer Advanced editions and higherAdditional Licensing Information To configure licensing for XenServer hosts using XenCenterTo configure licensing for XenServer hosts using the xe CLI Grace Period Appendix A. Troubleshooting To capture and save the log fileAppendix B. Boot From SAN Environments To configure your Tftp server Appendix C. PXE Boot InstallationsConfiguring your PXE Environment for XenServer Installation 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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