Cluster Upgrades And Downgrades; Cluster Backup And Restore; Clustering And Findme - Cisco TelePresence Video Communication Server Administrator's Manual

Peers share their bandwidth usage information with all other peers in the cluster, so when one peer
n
is consuming part or all of the bandwidth available within or from a particular subzone, or on a
particular pipe, this bandwidth will not be available for other peers.
For general information on how the VCS manages bandwidth, see the

Cluster upgrades and downgrades

The clustering feature was introduced to the VCS in software release X3.0.
Upgrading from versions prior to X3.0
If you are upgrading from VCS software versions prior to X3.0 and want to implement clustering, you
must:
1. Remove any existing Alternate configuration.
2. Upgrade all VCSs to be added to the cluster to the latest VCS software version.
3. Follow the steps outlined in
Downgrading
See the Upgrade procedure

Cluster backup and restore

The backup and restore
Backing up a cluster
The backup process saves all configuration information for the cluster, regardless of the VCS used to
make the backup.
Restoring a cluster
You cannot restore data to a VCS that is a part of a cluster.
To restore previously backed up cluster configuration data you must follow this process:
1. Remove a VCS peer from the cluster so that it becomes a standalone VCS.
2. Restore the configuration data to the standalone VCS.
3. Build a new cluster using the VCS that now has the restored data.
4. Take each of the other peers out of their previous cluster and add them to the new cluster. See
Setting up a cluster

Clustering and FindMe

Clustering supports the use of FindMe. Each peer has its own FindMe database containing all user
account information for the cluster. When a user account is created or edited on one peer, that peer
shares the information about the changes to all other peers in the cluster, which then update their own
FindMe databases accordingly.
Note: there is a limit of 10,000 FindMe user accounts per VCS cluster. Multiple clusters are required if
you have more than 10,000 users.
The replication of FindMe database information uses a different mechanism (the
used to replicate configuration information. Configuration information must be changed on the master
peer only, but changes to FindMe information can be made on any peer and will be shared with all other
peers.
If you are part of a large enterprise with, for example, TMS managing several VCS clusters, the
FindMe database may contain details of users and devices in other VCS clusters. Different clusters
Cisco VCS Administrator Guide (X6.1)
Setting up a cluster.
section for details on restoring system configuration details.
process can be used to save and restore cluster configuration information.
for more information about adding and removing cluster peers.
Clustering and peers
bandwidth control section.
TMS Agent) to that
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