technical solutions and commentary

December 28, 2005

Remove a Termianl Server from a NLB Cluster Gracefully

Filed under: Uncategorized — Jason Hartley @ 1:48 pm

If you are using Windows Server 2003 Terminal Services in a NLB (Network Load Balancing) Cluster configuration, you can remove a server from the cluster group so it will no longer except new user connections from the cluster name or ip address. This will allow you to take a server down for maintenance, while not disconnecting current user sessions. This setting is similar to unchecking the option of “Allow Logons to Server” in Citrix Presentation Server environment.

  • Open the NLB Manager.
  • Open the NLB Farm.
  • Right-click the name of the server to remove from TS logons.
  • Choose ‘Control Host’.
  • Choose ‘Drain Stop’
  • Even thought this option has a non-descriptive name, it will prevent new users from connecting to the server while keeping existing user sessions active.

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