Recovering From Primary Site Disaster In 3Dc Multi Target Configuration - HP XP P9500 User Manual

10. Use volumes in the primary site to resume your business tasks.
1 1. Execute the YKDELETE command onto journals that make a Continuous Access Synchronous
Z pair between the intermediate site and the secondary site.
The system returns to the status before the 3DC cascading configuration was set up.

Recovering from primary site disaster in 3DC multi target configuration

If a disaster or failure occurs only in the primary site in 3DC multi target system, you can use
secondary volume in the Continuous Access Synchronous Z secondary site to enable the secondary
site to take over your business tasks. After transferring your business tasks to the secondary site,
you need to remove the failure from the primary site, so that you can transfer your business tasks
back to the primary site.
To transfer your business tasks to the Continuous Access Synchronous Z secondary site, follow the
procedure below. Business Continuity Manager is used in this procedure:
1. Use Business Continuity Manager to execute the YKRECVER command on the journal
corresponding to the Continuous Access Journal Z pair that exists between the primary and
the Continuous Access Journal Z secondary sites.
YKRECVER is a command that requests releasing of a pair to the S-VOL.
2. Use Business Continuity Manager to execute the YKSUSPND REVERSE command on the
Continuous Access Journal Z pair.
YKSUSPND is a command for splitting a pair and stopping the copy operation temporarily.
3. Use the Continuous Access Journal Z remote volume to resume your business tasks.
Recovery procedures with shared volumes 107