7. For Copy Priority, enter the priority, or scheduling order, for the resync
operation. You can set priority from 1 to 256. The default is 32. For more
on priority, see the descriptions in Priority for initial copy operations and
scheduling order on page 3-15.
8. Click Finish.
9. In the Confirm window, review the settings and enter a task name in the
Task Name box.
10. Click Apply to save your settings in the system.
Deleting pairs
A TrueCopy pair can be deleted. Doing this deletes the TC relationship,
though not the volumes or their data.
• When it is no longer necessary to maintain a remote copy of the P-VOL,
delete a pair from the primary system only. All update operations are
stopped and pair status for both the P-VOL and S-VOL changes to
unpaired.
When a pair is deleted, the primary system continues to accept write I/O
to the former P-VOL but does not keep track of the updates.
• Delete a pair from the secondary system only for disaster recovery
purposes. When you do this, the secondary system changes the S-VOL
pair status to unpaired, and the primary system detects that the S-VOL
status is unpaired and then changes the P-VOL status to PSUS (Delete
pair to RCU).
To restart a pair that was deleted from the secondary system, you must
delete the pair from the primary system and then create the pair from the
primary system.
Note: When you delete a pair from the secondary system, make sure that
the S-VOL and P-VOL are identical, including the volume labels. Take all
necessary steps to prevent system problems due to duplicate volumes.
Procedure
1. Open the Remote Replication window.
In Hitachi Command Suite:
a. On the Resources tab, expand the Storage Systems tree.
b. Right-click the target storage system, and click Remote Replication.
In Device Manager - Storage Navigator:
a. Click Storage Systems, and then expand the Storage Systems
tree.
b. In the Storage Systems tree, click Replication > Remote
Replication.
2. In the Remote Replication window, click the TC Pairs tab, and then
select the pairs to be deleted.
3. In the TC Pairs tab, click More Actions > Delete Pairs.
6-10
TC pair operations
Hitachi TrueCopy® User Guide for Hitachi Virtual Storage Platform Gx00 and Fx00 Models
To Next Page
Loading...
