OracleGuru_6934
Feb 23, 2009Nimbostratus
F5 Big IP for App Failover between Oracle Data Guarded Clusters
I've got a situation where the loss of a RAC Cluster requires the restart of all application servers to repoint them to the Oracle Data Guard Failover Cluster. In this case there are hundreds of application servers, all with connection pools. The time to failover the Oracle Database 10gR2 RAC Cluster to the standby is in minutes before it is fully available, and could be quicker. The application servers don't start returning to online status for at least 1 1/2 hours to as long as three hours as they must be completely shutdown and manually restarted (I know). My objective is to have an architecture where the connection pools are simply rerouted to the Data Guard Failover Cluster which is available within minutes, and if fast start failover is used, virtually immediately. F5 Big IP equipment is used in the DC and I'm looking for architeture/configuration suggestions on how best to approach this to make the application failover seamless between a failed primary cluster, and a Data Guard standby cluster which assumes the role of the primary cluster on failover. This is a new architecture we're moving towards, so anything is basically on the table.
TIA
Bill