Upgrading multiple instances of Access Manager 7.1 is based on coexistence: an instance of OpenSSO Enterprise 8.0 can coexist with instances of Access Manager 7.1 in the same deployment and can concurrently access the Access Manager 7.1 schema in Directory Server. Thus, upgrade the instances one at a time. Upgrading multiple instances of Access Manager 7.1 is supported when:
Two or more Access Manager 7.1 instances are deployed in supported web containers on different hosts behind a load balancer. The instances were deployed either by running the Sun Java Enterprise System installer (package based installation) or from a WAR file.
If Access Manager 7.1 was deployed from a WAR file, the configuration data store must be in Sun Java System Directory Server and not in the Flat File System.
The configuration data store is in Sun Java System Directory Server; the Directory Server is set up for multi-master replication.
If multiple Access Manager 7.1 instances point to a configuration data store in a single Directory Server instance, first upgrade all Access Manager 7.1 instances sequentially and then upgrade the Directory Server schema.
Follow the instructions in OpenSSO Enterprise 8.0 Preliminary Upgrade Steps and Collecting Data Required for Upgrade to complete the preliminary steps.
Back up the Access Manager 7.1 files as described in Backing Up Existing Access Manager or Federation Manager Files.
Upgrade the first Access Manager 7.1 instance using the following sub procedure.
Disable the Access Manager 7.1 instance in the load balancer.
Requests will no longer be routed to this instance.
Upgrade the first Access Manager instance as described in Upgrading to OpenSSO Enterprise 8.0.
Enable the upgraded OpenSSO Enterprise 8.0 instance in the load balancer.
Requests will once again be routed to this instance.
Follow the same procedure for all other Access Manager 7.1 instances in the deployment sequentially:
Upgrade the Directory Server schema as described in Upgrading the Existing Access Manager or Federation Manager Schema.
Requests will now be routed through the load balancer to all upgraded OpenSSO Enterprise 8.0 instances in the deployment using the upgraded schema in Directory Server.