To enable migration of the Transaction Recovery Service from one server in a cluster to another server in the cluster, you must specify the list of candidate server that have access to the current server's transaction log files (stored in the default WebLogic store). For more information about migrating the Transaction Recovery Service, see Transaction Recovery After a Server Fails.
To configure the list of candidate servers for Transaction Recovery Service migration:
Note: You must include the original server in the list of chosen servers so that you can manually migrate the Transaction Recovery Service back to the original server, if need be. The Administration Console enforces this rule.
Note: The servers you select must have access to the default persistent store for the current server, even in the event of a crash.