Cisco Cisco TelePresence Video Communication Server Expressway
Change the Primary Peer
You can do this procedure even if the current primary peer is not accessible.
Note
: Follow this process in the order listed, to avoid putting the cluster in a state where multiple peers are contending to
be the primary.
On the "new" primary VCS:
1.
Go to System > Clustering.
2.
From the Configuration master drop-down menu select the ID number of the peer entry that says ‘This system’.
3.
Click Save.
While changing the primary peer, ignore any alarms on VCS that report 'Cluster master mismatch' or 'Cluster
replication error' – they will be rectified as part of this procedure.
replication error' – they will be rectified as part of this procedure.
On all other VCS peers, starting with the "old" primary peer (if it is still accessible):
1.
Go to System > Clustering.
2.
From the Configuration master drop-down menu select the ID number of the "new" primary VCS.
3.
Click Save.
On each VCS in the cluster (including the primary):
1.
Confirm that the change to the Configuration master has been accepted by going to System > Clustering and
refreshing the page.
refreshing the page.
2.
If any VCSs have not accepted the change, repeat the steps above.
3.
Check that the cluster database status reports as Active.
Note that any alarms raised on the VCS peers that relate to 'Cluster master mismatch' and 'Cluster replication error'
should clear automatically after approximately 2 minutes.
should clear automatically after approximately 2 minutes.
Cisco TMS
No changes are required; Cisco TMS will see the primary change on the VCS cluster and report this appropriately.
If the old primary is not available
If the "old" primary was not accessible when you changed the cluster's primary peer, but later that VCS becomes
available, you must clear its configuration and then bring it back into the cluster using the
available, you must clear its configuration and then bring it back into the cluster using the
Changing the primary peer of a VCS cluster is now complete.
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Cisco TelePresence VCS Cluster Creation and Maintenance Deployment Guide