Removing a Member from an Existing Cluster

Important - Schedule a full maintenance window to perform this procedure.

1. In SmartConsole:
   1. Open the existing cluster object.
   2. In the Cluster Members page, click Remove > Delete Cluster Member. Confirm when prompted.

      Important:

      • This operation deletes the object.
      • There must be at least two Cluster Members in the cluster object.
   3. In the Network Management page:
      • Make sure all interfaces are defined correctly.
      • Make sure all IP addresses are defined correctly.
   4. Click OK.
   5. Install the Access Control Policy on the cluster object.
2. On each existing Cluster Member:
   1. Connect to the command line.
   2. Log in to Gaia Clish or Expert mode.
   3. Restart the clustering.

      Important - This temporarily causes the Cluster Member not to be a part of the cluster. As a result, cluster failover can occur.

      Run:

      cphastop

      cphastart

   4. Make sure all Cluster Members detect each other and agree on their cluster states. Run:

      cphaprob state

3. On the Security Gateway computer you removed from the existing cluster:
   1. Connect to the command line.
   2. Log in to Gaia Clish or Expert mode.
   3. Run:

      cpconfig

   4. Select Disable cluster membership for this gateway > enter y to confirm.
   5. Select Secure Internal Communication > enter y to confirm > enter the new Activation Key. Make sure to write it down.
   6. Exit from the cpconfig menu.
   7. Reboot the Security Gateway.