Restoring a pair of data volumes (pairresync), Restoring a pair, Restoring – HP StorageWorks XP Remote Web Console Software User Manual
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•
Set: Applies the settings to the Preview list in the Pair Operation window (
).
•
Cancel: Discards the settings and closes the window.
Restoring a Pair of Data Volumes (Pairresync)
Use the Pairresync window (
“Pairresync Window” (page 192)
) to restore a pair that has been split.
In addition, the window allows you to recover a mirror and start data copying of an XP Continuous
Access Journal pair in HOLD or HOLDING status in order to perform the delta resync operation.
If the primary or secondary storage system is powered off and its backup batteries are fully
discharged while pairs are suspended, the M-VOL/R-VOL bitmaps are not retained. In this unlikely
case, the primary/secondary storage system marks all cylinders/tracks of all suspended volumes
as modified, so that the primary storage system performs the equivalent of an entire initial copy
operation when the pairs are resumed.
The administrator of the primary storage system can follow the procedure described in this section
to restore one or more pairs that have been split or to perform the delta resync operation. The
administrator of the secondary storage system cannot perform the following operation.
1.
Ensure that the Remote Web Console main window is in Modify mode.
For detailed information about how to do this, see the HP StorageWorks XP24000/XP20000
Remote Web Console User Guide.
2.
Ensure that the Pair Operation window is open (see
“Pair Operation Window” (page 121)
).
3.
If any pair was suspended due to an error condition (use the Detailed Information window to
view the suspend type) make sure that the error condition has been removed. The primary
storage system does not resume the pair(s) until the error condition has been removed.
4.
In the tree, select a port or a host group.
5.
In the list, select and right-click the pair that you want to restore.
The result of this operation differs according to the status of the selected mirror.
•
When you select the pair in PSUS or PSUE status, the split pair recovers.
•
When you select the pair in HOLD or HOLDING status, the delta resync operation is
performed.
•
When you select the pair in HLDE status, the status changes to HOLD.
6.
Select Pairresync.
7.
In the Pairresync window (
“Pairresync Window” (page 192)
), select the desired options for the
pair(s).
8.
Click Set to close the Pairresync window.
9.
See the Preview list in the Pair Operation window to check the settings that you have made.
•
To modify a setting, select and right-click the setting, and then select Modify.
•
To cancel a setting, select and right-click the setting, and then select Cancel.
10.
Click Apply to restore the pair(s). If an error occurs, the error code appears in the right column
of the Preview list. To view detailed information about the error, right-click the error code and
select Error Detail. In the list of the Pair Operation window, verify that the pairs have been
restored successfully.
•
If the delta resync operation has been performed successfully, the status of the pair is
COPY or PAIR.
•
If the operation to change pair status has been performed successfully, the status of the
pair changes to HOLD or HOLDING.
11.
To monitor the progress of restoring the pair(s), click File, Refresh on the menu bar of the
Remote Web Console main window to update the information in the list, or use the Detailed
Restoring a Pair of Data Volumes (Pairresync)
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