Disabling High Availability

Last Updated : Jan 21, 2022 |
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When you no longer require the redundancy provided by a 1+1 High Availability cluster or you need to separate the servers for maintenance reasons, you can break-up the cluster resulting in two standalone servers, also known as simplex media servers.
Perform the following procedure to remove the configuration for a 1+1 High Availability cluster.
  1. Gain access to the Backup server and navigate to EMElement Status.
  2. If the Backup server is active then select Failover from the More Actions drop-down menu.
    ADDITIONAL INFORMATION:
    The Primary server is now the active server. Wait until the alarms clear before continuing.
  3. Gain access to the Primary server and navigate to EMCluster Configuration High Availability.
  4. Lock the High Availability state of the Primary server by selecting Local High Availability State Lock.
  5. Disable High Availability on the Backup server by navigating to EMCluster Configuration High Availability and clearing Enable High Availability.
  6. Click Save.
  7. Click Confirm.
  8. Prevent new sessions from starting on the Primary server by navigating to EMSystem StatusElement Status and clicking More ActionsPending Lock.
  9. Click Confirm.
  10. Check for active sessions on the Primary server by navigating to EMSystem StatusMonitoringActive Sessions.
    ADDITIONAL INFORMATION:
    Wait for the active sessions to end. The system automatically changes to the Locked state after all the sessions have ended.
    Perform the following steps if you want to continue before the active sessions end:
    1. Manually lock Avaya Aura® MS by navigating to EMSystem StatusElement Status and clicking More ActionsLock. Locking the media server also ends any remaining sessions.
    2. Click Confirm.
  11. Disable High Availability on the Primary server by navigating to EMCluster Configuration High Availability and clearing Enable High Availability.
  12. Click Save.
  13. Click Confirm.
  14. Gain access to the Backup server and navigate to EMCluster ConfigurationServer Designation.
  15. Select Primary for the Role.
  16. Click Save.
  17. Click Confirm.
  18. Gain access to the original Primary server and navigate to EMCluster ConfigurationServer Designation.
  19. Remove the former Backup server from the Server Designation list by selecting the server and clicking Remove.
  20. Click Save.
  21. Click Confirm.
  22. Unlock the original Primary server, by navigating to EMElement Status and selecting Unlock from the More Actions drop-down menu.
    ADDITIONAL INFORMATION:
    Both servers are now in service as simplex media servers.
  23. Both servers contain data in their Content Stores that was synchronized when the servers were configured as a High Availability cluster. You can remove the data from one or both servers by deleting the namespaces or content groups that you no longer need as follows:
    1. Navigate to EMToolsMedia Management.
    2. Select the application related namespaces that you want to remove from the Content Namespaces list.
    3. Click Delete…
    4. Click Confirm.
Related links
1+1 High Availability cluster configuration