HP StorageWorks XP24000 User Manual page 83

Table 32 Requirements for Selecting Reverse Copy(T->S) or Quick Restore(T->S)
Parameter
Pair status
Pair type
Shared SIz/TCz volume.
Shared SIz/URz volume.
During the reverse copy or quick restore operation, a TCz pair and/or a URz pair cannot be
created. The TCz add pair command and URz add pair command will be rejected when the
SIz pair status is resync-r.
The Copy Pace list allows you to select the copy pace (from Slower, Medium, or Faster) for
all the pairs that you are re-synchronizing.
Slower minimizes the impact of SIz operations on storage system I/O performance. Faster
quickly completes the copy operation, but it may affect the storage system I/O performance.
The OK button adds the operation setting displayed in the Resynchronize Volume Pair Volume
List for re-synchronizing the specified pairs to the Preview List in the Pair Operation window.
Click Apply in the Pair Operation window to start the Resync Pair operation for the specified
pairs.
The Cancel button cancels the operations set in the Resynchronize Volume Pair dialog box
and closes the dialog box.
To resynchronize one or more SIz pairs that have been split or suspended:
1. From the host, set the split T-VOLs offline before starting the Resync Pair operation.
When the Resync Pair operation starts, the storage system will stop accepting write I/Os to
the T-VOL.
2. Go to the Pair Operation window, and select the desired CU image or S-VOL in the Tree to
filter the volumes displayed in the Volume List.
3. Select the pairs in Split, V-Split, or Suspend status, right-click the selected pairs to display the
menu, and then select the Resync Pair command to open the Resynchronize Volume Pair dialog
box.
4. On the Resynchronize Volume Pair dialog box, select the pairs you want to resynchronize.
To remove the pairs in the Resynchronize Volume Pair Volume List, select and right-click the
pair, and then select the Delete command in the menu.
5. Select the desired copy pace from the Copy Pace list.
The specified pair must be in the split state. All other pairs that share the
same S-VOL as the specified pair must also be in the split or suspended
state.
You cannot perform the quick restore pairresync command on a pair that
consists of VLL and normal volumes.
The specified pair must not be an HP StorageWorks XP for Data Exchange
Software volume pair.
If the SIz and TCz pairs share the same volume (S-VOL = M-VOL,
T-VOL = M-VOL, or S-VOL = R-VOL), and the TCz pair is not in the suspend
status, the reverse copy and quick restore operations cannot be performed.
When the shared SIz/TCz volume is paired with an external volume, the
quick restore pairresync operation cannot be performed.
If the SIz and URz pairs share the same volume, and the URz pair is not in
the suspend status, the reverse copy and quick restore operations cannot
be performed.
When the shared SIz/URz volume is paired with an external volume, the
quick restore pairresync operation cannot be performed.
Requirements
Resynchronizing Pairs 83