Clustering CITRIX License server with Microsoft Clustering for High Availability

Clustering CITRIX License server with Microsoft Clustering for High Availability-

Cluster servers are groups of computers that are combined to increase availability, reliability, and scalability. Microsoft clustering functionality exists in Windows Server 2003 and Windows Server 2008. Clustering the license server lets users continue working during failure situations without interrupting their access to critical applications. When the active node in a cluster-enabled license server suffers from hardware failure, fail-over occurs automatically. Resources are available again in a few seconds to a few minutes.

Citrix Licensing supports clustering the license server with two servers in a cluster and a shared drive. That is, you can cluster the license server in a two-node Microsoft Cluster in an Active/Passive Microsoft clustering configuration.

The following steps describe how to set up your clustered Citrix License Servers:-

1.  Start your installation on the active node of the cluster (ensure that node 1 is your

active node and has all the shared resources).

2.  Run the command prompt as administrator (right-click on the shortcut and click on

Run as Administrator).

3.  Use the following command to start the Citrix License Server installation wizard:

msiexec.exe /i ctx_licensing.msi CTX_CLUSTER_RESOURCE_DLL_

PATH="C:\ctxlic" REGISTER_CTX_LS_CLUSTERING="No" /log "clsinstall.

log"

4.  Accept the license agreement and click on Next.

5.  Select the cluster-shared drive as the drive for the destination folder path on the

Change Destination Folderpage.

6.  Accept the default port numbers for the Citrix License Server services on the

Configurationpage.

7.  Finish the installation.

8.  Use the Cluster Administrator console to activate the second node as the active

cluster node.

9.  Run the command prompt as administrator (right-click on the shortcut and click on

Run as Administrator on the second node).

10. Use the following command to start the Citrix license server installation wizard:

msiexec.exe /i ctx_licensing.msi CTX_CLUSTER_RESOURCE_DLL_

PATH="C:\ctxlic" REGISTER_CTX_LS_CLUSTERING="Yes" /log

"clsinstall.log"

11. Repeat step 4 to step 7 for other Node.

Keep the following points in mind:-

·        Because you already generated license files that reference a specific server name, you must either give the cluster the same name as the original license server or rehost your license files with the new name of the license server cluster.

·        Cluster names are always ALL UPPERCASE. Host names in license files are case-sensitive; therefore, the cluster names must be all uppercase in the license file. If they are not, you must rehost your license files with the correct capitalization of the names.

Open the License Administration Console in a cluster by browsing to:

http://clustername:web service port

Where clustername is the name of the cluster and web service port is the port number for console communications (the default port number is 8082).