HP XP Continuous Access Software User Manual
Page 78
NOTE:
To transfer your business tasks back to the primary site:
•
Repair failures at the primary site and other locations.
•
Follow instructions in
“Transfer tasks-DC1 without jrnl pr to DC1 with jrnl pr (delta resync/3DC
Figure 33 Recovering from primary site disasters (when performing delta resync operations)
Change to 3DC multi-target configuration after primary site failure
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 XP Continuous Access secondary
volume is the multi-target primary volume.
To change the system to a 3DC multi-target configuration:
1.
Use XP RAID Manager to delete the former (data center 1 to data center 3) XP Continuous
Access Journal pair.
2.
If a pair resynchronization has not been performed to reverse the XP Continuous Access
Synchronous pair's primary/secondary relationship (that is, if the pair is suspended), use XP
RAID Manager to resynchronize the pair, so the primary/secondary relationship is reversed
from its original direction (the DC2 to DC3 Journal pair is still intact).
78
XP Continuous Access Journal operations requirements and restrictions