Split a mirror, Create a point-in-time copy, Split a mirror create a point-in-time copy – HP XP P9500 Storage User Manual
Page 72: Prerequisite information
9.
See the Preview list in the Journal Operation window to check the settings that you have made.
•
If you want to modify a setting, select and right click the setting in the Preview list and
then select Modify.
•
If you want to cancel a setting, select and right click the setting and then select Cancel.
10. Click Apply to apply the settings. If an error occurs, the error code appears in the rightmost
column of the Preview list. To view detailed information about the error, right click the error
code and select Error Detail.
You can verify the Suspend status when the operation is completed.
Split a mirror
If a mirror is split, all the pairs in the mirror are split, and the data copy from the primary journals
to the secondary journals is suspended.
Prerequisite information
•
A mirror can be split from the primary or secondary system.
•
Mirrors must be in Active status.
To split a mirror
1.
In Remote Web Console, select Actions > Remote Copy > Continuous Access Journal Z >
Journal Operation.
2.
Click
to change the mode from View to Modify.
3.
In the tree, expand Registered then select the desired LDKC. Journals display in the tree and
mirrors display in the right-side pane.
4.
Select one or more mirror with the desired mirror ID(s). The status of the mirror must be Active.
5.
Right-click and select Mirror >Suspend Pair from the menu. The Suspend Pair dialog box
displays.
6.
Select the desired options and complete the procedure (see Step 4. to Step 9. on
. However, you cannot change Mirror of the Range list in the step 5.)
7.
Click Apply to split the mirror. If an error occurs during creating pairs, right-click the item in
the Preview list and select Error Detail. You can verify the Stopped status of the mirror when
the mirror split operation is completed.
Create a point-in-time copy
Continuous Access Journal Z allows you to make Point-in-Time (PiT) duplicates of groups of volumes.
The term "Point-in-Time (PiT)" refers to an act of obtaining a copy of data immediately when you
want to obtain it. Continuous Access Journal Z can be used to create a PiT copy of data volumes
belonging to a journal.
To produce a PiT duplicate of the volumes in a journal
1.
Stop all write I/Os from hosts to P-VOLs in the journal.
2.
After all write I/Os to P-VOLs have stopped, split the mirror. Use the Suspend Pair dialog box
and then specify Mirror for Range and specify Flush for Suspend Mode.
3.
When the status of all pairs in the journal has changed to Suspend, the duplicate set of volumes
is complete. If desired, you can restart your business application at the primary site to resume
business activities.
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Pair operations