HP StorageWorks XP Remote Web Console Software - Manual (Page 104)

104 Continuous Access XP Journal
• S-VOL Write: Specify whether hosts can issue read I/O and write I/O to the secondary volume after
the mirror is split.
• Enable: Hosts can issue read I/O and write I/O to the secondary volume after you split the mirror.
• Disable: Hosts cannot issue read I/O and write I/O to the secondary volume after you split the
mirror. This is the default.
This parameter takes effect only when the selected volume is a master journal group.
• Range: Split range. This is always set to Group and cannot be changed.
• Suspend Mode: Specify how to handle update data that is not reflected to the secondary volume.
• Flush: Update data is reflected to the secondary volume when you split the mirror. This is the
default.
When the secondary disk array receives a request for splitting a mirror, all journal data (that is,
update data) that the mirror retains is written to the secondary data volume. After that, the mirror’s
status changes from Suspending to PSUS if the mirror does not retain any journal data for a certain
period of time.
• Purge: Update data is not reflected to the secondary volume when you split the mirror. If you restore
the mirror, update data is reflected to the secondary volume.
Restoring mirrors (Pairresync: resuming copy operations)
A mirror is a combination of a master journal group and a restore journal group. If you split a mirror,
copying data from the master journal group to the restore journal group is suspended. To restart data
copying, restore the mirror.
If you are logged onto an XP10000, you can perform this operation only on journal groups that have a
number below 10.
Only primary disk array administrators can perform the following procedure:
1. Ensure that the Command View XP or XP Remote Web Console main pane is in Modify mode. For
more information, see the HP StorageWorks Command View XP User Guide for XP Disk Arrays or the
HP StorageWorks XP Remote Web Console User Guide for XP12000/XP10000.
2. Ensure that the Journal Operation pane is displayed (see ” Displaying the Journal Operation pane ” on
page 88).
3. Do one of the following:
• In the tree, select a master or restore journal group from below Registered.
• In the tree, select Journal Groups or Registered, and select a master journal group from the list to
the right.
A list of mirrors displays. One row in the list represents one mirror.
4. Locate mirrors that are in Stop status.
5. From the mirrors, select and right-click the mirrors you want to restore.
6. Select JNL Groups and Pairresync.
7. In the Preset list, check the mirrors you want to restore.
• To cancel restoring a mirror, select and right-click the mirror, and select Cancel.
• If necessary, repeat
step 3 through step 7 to specify other mirrors.
8. Click Apply to restore the mirrors.
NOTE: If an error occurs, the right-most column of the Preset list displays the error code. To view detailed
information about the error, right-click the error code, and select Error Detail. An error message appears
providing detailed information about the error.