Adding Data Nodes to an Active SSR Cluster (SRC CLI)
This procedure makes the following assumptions:
You are working with an active cluster and the SSR database is in production mode. If you are unsure what mode the database is in, see Viewing the SSR Database Mode (SRC CLI)
Your SSR cluster currently only has two data nodes.
You have physically installed the two additional C Series Controllers that will be acting as data nodes, made the interface connections to the cluster, and installed the SRC software.
Changing the cluster geometry causes the SSR database to be destroyed. All data will be lost and you need to re-create the database. This procedure should be performed only during a maintenance window. Review this procedure in full before proceeding.
To add data nodes to an active cluster:
Configure each of the C Series Controllers as data nodes.
Change the SSR cluster geometry to four-data-node.
Commit the configuration.
Place the database into maintenance mode.
Disable the component database on each management server in the cluster (one by one).
Enable the component database on each management server in the cluster (one by one).
Restart the component database on each of the existing data nodes (one by one).
Enable the component database on each of the new data nodes (one by one).
Verify the cluster configuration changes by viewing the status of the database.
Re-create the SSR database.
Restart all SSR client components.
Place the database into production mode.