Restoring a mirror (resuming a copy operation), Restoring a mirror (resuming – HP StorageWorks XP Remote Web Console Software User Manual
Page 180
This parameter takes effect only when the selected volume is a master journal group.
•
Range: Allows you to specify the split range. This parameter is always set to Group and cannot
be changed.
•
Suspend Mode: Allows you to specify how to handle update data that are not reflected to the
secondary data volume. The default is Flush.
◦
If you select Flush, update data will be reflected to the secondary data volume when you
split the mirror.
When the secondary storage system receives a request for splitting a mirror, all the journal
data (that is, update data) that the mirror retains will be written to the secondary data
volume. After that, the status of the mirror will change from Suspending to Suspend if the
mirror does not retain any journal data for a certain period of time.
◦
If you select Purge, update data will not be reflected to the secondary data volume when
you split the mirror. If you restore the mirror, the update data will be reflected to the
secondary data volume.
Restoring a Mirror (Resuming a Copy Operation)
A mirror is a combination of a master journal group and a restore journal group. If you split a
mirror, the copying of data from the master journal group to the restore journal group will be
suspended. To restart the copying of data, you need to restore the mirror. As for a mirror in Hold
or Holding status, you need to restore the mirror in order to restart the copying of data.
To restore a mirror, follow the procedure below. Only the primary storage system administrator
can perform this operation; the secondary storage system administrator cannot perform this
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's Guide.
2.
Ensure that the Journal Operation window is displayed (see
).
3.
Do either of the following:
•
In the tree, select a master journal group or a restore journal group from below Registered.
•
In the tree, select Journal Groups or Registered and then select a master journal group
from the list to the right.
The list displays a list of mirrors. One row in the list represents one mirror.
4.
Locate the mirrors that are in Stop, Hold, Holding, or Hold(Failure) status.
5.
From the mirrors, select and right-click the mirror(s) that you want to restore.
The result of this operation differs according to the status of the selected mirror.
•
When you select the mirror in Stop status, the copying of data is restarted after the
recovery.
•
When you select the mirror in Hold or Holding status, the delta resync operation is
performed after the recovery.
•
When you select the mirror in Hold(Failure) status, the status changes to Hold after the
recovery.
6.
From the pop-up menu, select JNL Groups and Resume Pair.
180 Configuring Journal Groups