HP StorageWorks XP Remote Web Console Software User Manual
Page 132
The list displays a list of mirrors. One row in the list represents one mirror.
4.
Locate mirrors that are in Active status.
5.
From the mirrors, select and right-click the mirror(s) that you want to split.
6.
From the pop-up menu, select JNL Groups and Suspend Pair.
7.
In the Suspend Pair window (
“Suspend Pair Window” (page 132)
), specify parameters and
then select Set.
8.
See the Preview list to check the mirrors that you want to split.
•
If you want to modify parameters of a mirror, select and right-click the mirror and then
select Modify.
•
If you want to cancel splitting a mirror, select and right-click the mirror and then select
Cancel.
•
If necessary, you can repeat steps
to
to specify other mirrors.
9.
Select Apply to split the mirror(s).
NOTE:
If an error occurs, the rightmost column of the Preview list displays the error code.
To view detailed information about the error, right-click the error code and then select Error
Detail. An error message appears and gives you detailed information about the error.
Figure 60 Suspend Pair Window
The Suspend Pair window displays the following information:
•
S-VOL Write: Allows you to specify whether hosts can issue read I/O and write I/O to the
secondary data volume after the mirror is split. The default is Disable.
If you select Enable, hosts can issue read I/O and write I/O to the secondary data volume
after you split the mirror.
If you select Disable, hosts cannot issue read I/O and write I/O to the secondary data volume
after you split the mirror.
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 (for example, 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.
132
Using Journal Groups