HP StorageWorks XP Remote Web Console Software - Manual (Page 206)

“Recovery from Failure in the Primary Site (When Delta Resync Operation is Performed)”
(page 207)
, or if the primary/secondary relationship of the XP Continuous Access Journal pair
is reversed (when the copy direction is reversed as illustrated in the upper-right figure in
“Recovery from Failure in the Primary Site (When Delta Resync Operation is Performed)”
(page 207)
), use RAID Manager to perform delta resync operation (pairresync –swaps) on the
XP Continuous Access Journal pair for delta resync operation in the XP Continuous Access
Journal secondary site. When you perform delta resync operation on the data volumes in the
XP Continuous Access Journal secondary site, the status of the data volumes of XP Continuous
Access Journal pair changes as explained in
“Recovery from Failure in the Primary Site (When
Delta Resync Operation is Performed)” (page 207) .
4. Check the execution result of the pairresync –swaps command.
5. After confirming the following status, use the primary data volume in the target XP Continuous
Access Journal secondary site to resume the business tasks.
•
The primary data volume of the XP Continuous Access Journal pair for delta resync
operation in the XP Continuous Access Journal secondary site is switched to the primary
data volume of the XP Continuous Access Journal pair in the primary site. –
•
The status of the XP Continuous Access Journal pair for delta resync operation in the XP
Continuous Access Journal secondary site becomes PAIR.
Table 39 Changes of XP Continuous Access Journal pair Status by Delta Resync Operation
Pair Status after
Delta Resync
Operation
Pair Status before
Delta Resync
Operation Column
Head
XP Continuous Access Journal Pair
Secondary
Data Volume Primary
Data
Volume Secondary
Data Volume Primary
Data
Volume
HOLD HOLD PAIR, PSUS,
or PSUE PAIR,
PSUS, XP Continuous Access Journal pair between XP Continuous Access Journal
primary site and XP Continuous Access Journal secondary site
or
PSUE
PAIR or COPY PAIR
or
COPY HOLD HOLD XP Continuous Access Journal pair between the alternative XP Continuous
Access Journal site and XP Continuous Access Journal secondary site
To transfer business tasks back to the primary site, remove failures in the primary site and other
locations, and then follow the instructions in
“ Transferring Business Tasks from the XP Continuous
Access Journal Secondary to the Primary Site” (page 64) .
206 Performing Disaster Recovery Operations