HP XP Continuous Access Software - Manual (Page 85)

Figure 33 Recovering from primary site disasters (when performing delta resync
operations)
Changing back to a 3DC multi-target configurations after recovering from primary site failures
If you follow the instructions in Recovering from primary site failures and the system does not change to a
3DC cascading configuration due to primary site failures, you have the ability to change the system to
a 3DC multi-target configuration after removing failures from the primary site and other locations. In
the resulting 3DC multi-target configuration, the former Continuous Access XP secondary volume is the
multi-target primary volume.
To change the system to a 3DC multi-target configuration:
1. Use RAID Manager XP to delete the former (data center 1 to data center 3) Continuous Access
XP Journal pair.
2. If a pair resynchronization has not been performed to reverse the Continuous Access XP Synchronous
pair's primary/secondary relationship (that is, if the pair is suspended), use RAID Manager XP to
resynchronize the pair, so the primary/secondary relationship is reversed from its original direction
(the DC2 to DC3 Journal pair is still intact).
Continuous Access XP Journal user guide 85