HP StorageWorks XP Remote Web Console Software User Manual
Page 212
3.
Check the execution result of the horctakeover command.
4.
When the primary/secondary relationship of the XP Continuous Access Synchronous pair is
not reversed (meaning that the copy direction is not reversed as illustrated in
), or when the primary/secondary relationship of the XP Continuous Access Synchronous
pair is reversed (when the copy direction is reversed as illustrated in
. In
either case, use RAID Manager to perform the delta resync operation on the volume in the XP
Continuous Access Synchronous secondary site.
When you perform the delta resync operation on the volume in the XP Continuous Access
Synchronous secondary site, the status of the data volumes of the XP Continuous Access Journal
pair changes, as explained in
Table 40 Changes of XP Continuous Access Journal Pair Status by Delta Resync Operation (When
Recovering from Failures in the Primary Site)
Pair Status after Delta Resync Operation
Pair Status before Delta Resync Operation
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, or PSUE
XP Continuous Access
Journal pair between
XP Continuous Access
Synchronous primary
site and XP
Continuous Access
Journal secondary site
PAIR or COPY
PAIR or COPY
HOLD
HOLD
XP Continuous Access
Journal pair between
XP Continuous Access
Synchronous
secondary site and XP
Continuous Access
Journal secondary site
In order to transfer business tasks back to the primary site, remove the failures in the primary site
and other locations, and then follow the instructions in
“Transferring Business Tasks from an XP
Continuous Access Secondary Site to the Primary Site (in a 3DC Cascading Configuration)”
(page 93)
.
For the most current information on the availability of the delta resync operation, contact HP
technical support.
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Performing Disaster Recovery Operations