Adding an additional journal volume to an existing journal

You can add one additional journal volume to a journal. The additional volume is not used unless needed for maintenance or to replace the first one. In the event of pair failure, the additional (backup) journal volume allows you to reduce the time to recover a blocked journal volume.

Prerequisite information

Review the following:

In the Hitachi Universal Replicator User Guide, see the sections on system requirements, planning journals, and planning journal volumes.

The journal’s mirror status must be Initial, Active, Stopped, Hold, Holding, or Hold(Failure).

The journal cannot be in use.

Pair operations involving the journal cannot be in progress.

Adding a reserve (spare) journal volume to a journal while remote copy is in progress causes only the journal data area to be used. The metadata area is not used, because it is unavailable. To make the metadata area available in this case, split and resynchronize all pairs in the journal group.

To add journal volumes to an existing journal

Open the Journals window:

In Hitachi Command Suite: On the Resources tab, expand the Storage Systems tree, right-click the target storage system, and click Journals.

In Device Manager - Storage Navigator: In the Storage System tree, click Replication > Journals.

Select the Journal Volumes tab, and then select the journal to which you are adding journal volumes.

From the Actions menu, click Journals > Assign Journal Volumes.

In the Assign Journal Volumes window, from the Unassigned Journal Volumes table, select the journal volume to be added to the journal, and then click Add. The selected journal volume moves to the Assigned Journal Volumes table.

To remove a volume from the table, select the volume and click Remove.

Only OPEN-V volumes display in the Unassigned Journal Volumes table.

Click Finish.

In the Confirm window, review the settings and enter a task name in the Task Name box.

Click Apply to save your settings to the system.