Suspend Pair Creation - HP StorageWorks P9000 User Manual

Suspend pair creation

When you suspend the creation of pairs (copy to the T-VOL of the pair), the pair status becomes
Suspend. The T-VOL continues accepting write I/O operations to the S-VOL and marks the entire
S-VOL track as difference data. When a pairresync operation is performed on a suspended pair,
the pair status becomes Resync, and the entire S-VOL is copied to the T-VOL. While the pairresync
operation for a split pair can be very fast, the pairresync operation for a suspended pair takes as
long as the initial copy operation.
The storage system will automatically suspend a pair when it cannot keep the pair mirrored for
any reason. The storage system will automatically suspend a pair under the following condition:
When the storage system detects an error condition related to an update copy operation.
Procedure 7 To suspend pair(s):
1. Click Actions > Local Copy > Business Copy for Mainframe/Compatible FlashCopy > Pair
Operation to open the Pair Operation window.
2. Change to Modify mode by clicking the
3. 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.
4. Select the pair(s) that you want to suspend (or the volume(s) whose pairs you want to suspend),
right-click the selected pair(s) to display the menu, and select the Suspend Pair command to
open the Suspend Volume Pair dialog box.
5. On the Suspend Volume Pair dialog box, select the pair(s) you want to suspend, and click OK
to reflect the settings to the Preview List on the Pair Operation window.
To remove pair(s) from the list, select the unneeded pair(s), right-click while selecting the pair(s),
and then select the Delete command from the menu that displays by right-clicking.
6. Repeat steps 4 and 5 to suspend additional pairs in the Pair Operation window.
7. On the Pair Operation window, click Apply to suspend the specified pair(s).
The Pair Operation window displays the result(s) of the Suspend Volume Pair operation(s) (i.e.,
pair status changed to Suspend).
34 Performing pair operations
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