HP StorageWorks XP24000 Continuous Access Journal Software User and Reference Guide, v01 (T5278-96001, June 2007)

Figure 30 R
ecovering from Failures at the Primary Site and t he Continuous Access
Synchronous Seconda ry Site
Transferring Business Tasks from the Continuous Access Journal Secondary Site to the Primar y
Site
If you follow the instructions in Recovering from Failures at the Primary Site a n d the Continuous Access
Synchronous Secondary Site on page 66 and then remove failures from the primary site and the
Continuous Access Synchronous secondary site, you can transfer your business tasks back to the primary
site.
To transfer your business tasks back to the p rimar y site, follow the procedure below. RAID Manager is
used in this procedure.
1. Use R AID M anager to release the Continuous Access Synchronous pair.
2. If the Continuous Access Journal pair has not been resynchronized to reverse the primary volume
and
the secondar y volume and is suspended, use RAID Manager to resynchronize the pair to
reverse the primary and secondary volumes.
The secondar y data volume at the former Continuous Access Journal secondary site changes to
the
primary data volume. The primary data volume at the former primary site changes to the
secondary data volume (see the upper-right picture in Figure 31 on page 68).
3. Stop the b usiness tasks at the Continuous Access Journal secondary site.
4. Use RAID Manager to execute the horctakeover command on the Continuous Access Journal pair.
The Continuous Access Journal primary and secondary volumes are reversed.
5. Use the primary volume at the primary site to resume the business tasks.
6. Use RAID Mana ger to resynchronize the Continuous Access pair.
The system configuration changes to the original 3DC multi-target configuration (see the
lower-right picture in Figure 31 on page 68).
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