HP StorageWorks XP Remote Web Console Software - Manual (Page 86)

Figure 40 Changing into 3DC Multi-target Configuration After Recovering from Primary Site Failures
Transferring Business Tasks from TCz Secondary Site to the Primary Site
If you follow the operation procedure in “Recovering from Failures in the Primary Site and the TCz
Synchronous Secondary Site” (page 90) the system will be changed to 3DC cascading configuration,
you can transfer your business tasks back to the primary site after removing failures from the primary
site and other locations.
To transfer your business tasks back to the primary site, follow this procedure, using Business
Continuity Manager:
1. Stop business tasks at the TCz Synchronous secondary site.
2. Use Business Continuity Manager to execute the YKSUSPND FORWARD command to the TCz
Synchronous pair.
NOTE: YKSUSPND is a command for splitting a pair and stopping the copy operation
temporarily.
3. Use the primary volume in the primary site to resume your business tasks.
4. Use Business Continuity Manager to execute the YKRESYNC FORWARD command on the TCz
Synchronous pair, so that the copy direction of the TCz Synchronous pair will be returned to
the original state. The system configuration changes to the original 3DC multi-target
configuration.
86 Requirements and Restrictions for Universal Replicator z/OS Operations