Cisco Cisco TelePresence Video Communication Server Expressway
Change the master peer of a Cisco VCS X5 cluster
Change the master peer of a Cisco VCS X5
cluster
cluster
Changing the master peer in a cluster where the old master
Cisco VCS is accessible or is not accessible
Cisco VCS is accessible or is not accessible
Note: The operations in this process should be performed in one go so that the cluster is not left in a
state where there are multiple Cisco VCSs which think they are cluster Master.
state where there are multiple Cisco VCSs which think they are cluster Master.
On the “new” Master Cisco VCS:
1. Go to the Clustering page (VCS Configuration > Clustering) and from the Configuration
1. Go to the Clustering page (VCS Configuration > Clustering) and from the Configuration
master drop-down menu select the ID number of the Peer entry that says ‘This VCS’.
2. Click
Save.
While performing this change of master peer, ignore any warnings on Cisco VCS that report
‘Cluster master mismatch’ or ‘Cluster replication error’ – they will be rectified as part of this
procedure.
‘Cluster master mismatch’ or ‘Cluster replication error’ – they will be rectified as part of this
procedure.
If the “old” Master Cisco VCS is accessible, on the “old” Master Cisco VCS:
3. On
the
Clustering page (VCS Configuration > Clustering) from the Configuration master
drop-down menu select the ID number of the “new” Master Cisco VCS.
4. Click
Save.
For all other non-master Cisco VCS peers, on that Cisco VCS:
5. Go to the Clustering page (VCS Configuration > Clustering) and from the Configuration
5. Go to the Clustering page (VCS Configuration > Clustering) and from the Configuration
master drop-down menu select the ID number of the “new” Master Cisco VCS.
6. Click
Save.
On each Cisco VCS in the cluster (including the master):
7. Confirm that the change to the Configuration master has been accepted by selecting VCS
7. Confirm that the change to the Configuration master has been accepted by selecting VCS
Configuration > Clustering and refreshing the page.
8. If any Cisco VCSs have not accepted the change, repeat steps 5 and 6.
On each Cisco VCS in the cluster (including the master):
9. Log in to the Cisco VCS CLI as root and type:
cluster
10. Choose option 5 “Check the replication state of this VCS”.
11. Check that the correct Cluster peers are reported and that it states “Replication is working”.
If any Cisco VCS reports a problem, ensure that no calls are in progress and then reboot the
Cisco VCS.
Cisco VCS.
Note: After approximately 2 minutes any warnings raised on the Cisco VCS peers that relate to
‘Cluster master mismatch’ and ‘Cluster replication error’ should automatically clear.
‘Cluster master mismatch’ and ‘Cluster replication error’ should automatically clear.
Reconfigure Cisco TMS
No changes are required; Cisco TMS will see the master change on the Cisco VCS cluster and report
this appropriately.
this appropriately.
Cisco VCS Deployment Guide: Cluster creation and maintenance (Cisco VCS X5)
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