If PRIMARY fails, enable an application's group members on BACKUP2 to take over the workload of their group members on PRIMARY. This requires more processor storage than is available to BACKUP2, so MVS™ obtains more storage by taking TEST down and configuring its storage online to BACKUP2.

Note that you must define the processor storage to the LPARs in such a way that the BACKUP2 LPAR can obtain the storage freed from TEST. For information on how to do this, see PR/SM™ Planning Guide.