Upgrading the host where the Tiebreaker monitor is running

You can upgrade the host where the Tiebreaker monitor is running with minimal disruption if you place the monitors in observer mode before the upgrade.

1. Verify the monitors are in observer mode: monitor show –status

   MetroCluster Tiebreaker:> monitor show -status
   MetroCluster: cluster_A
       Disaster: false
       Monitor State: Normal
       Observer Mode: true
       Silent Period: 15
       Override Vetoes: false
       Cluster: cluster_Ba(UUID:4d9ccf24-080f-11e4-9df2-00a098168e7c)
           Reachable: true
           All-Links-Severed: FALSE
               Node: mcc5-a1(UUID:78b44707-0809-11e4-9be1-e50dab9e83e1)
                   Reachable: true
                   All-Links-Severed: FALSE
                   State: normal
               Node: mcc5-a2(UUID:9a8b1059-0809-11e4-9f5e-8d97cdec7102)
                   Reachable: true
                   All-Links-Severed: FALSE
                   State: normal
       Cluster: cluster_B(UUID:70dacd3b-0823-11e4-a7b9-00a0981693c4)
           Reachable: true
           All-Links-Severed: FALSE
               Node: mcc5-b1(UUID:961fce7d-081d-11e4-9ebf-2f295df8fcb3)
                   Reachable: true
                   All-Links-Severed: FALSE
                   State: normal
               Node: mcc5-b2(UUID:9393262d-081d-11e4-80d5-6b30884058dc)
                   Reachable: true
                   All-Links-Severed: FALSE
                   State: normal
   
2. Change all of the monitors to observer mode.

   MetroCluster Tiebreaker :> monitor modify -monitor-name monitor_name -observer-mode true 
   
3. To upgrade the Tiebreaker host, follow all of the steps in the following procedure:
   Installing or upgrading the software package
4. Disable observer mode to move all the of the monitors back to online mode.

   MetroCluster Tiebreaker :> monitor modify -monitor-name monitor_name -observer-mode false