HP XP7 Storage - Manual (Page 66)

7. In the Select Journal Volumes dialog box, from the Available LDEVs table, select the journal
volumes to be registered to the journal, and click the Add button. The volumes move to the
Selected Journal Volumes table.
You can remove a volume from the Selected Journal Volumes table by selecting it and clicking
Remove.
Click OK when finished.
8. In the Create Journals window, select a Journal Type Option.
•
Select Standard for journals in Cnt Ac-J Z standalone pairs and pairs in a 3DC
configuration.
•
Select 2DC configuration for journals in Cnt Ac-J Z pairs in a 2DC cascade configuration.
9. Optional. For MP Blade, you can specify an MP blade from MPB0 to MPB7. Auto is available
when one or more blades can be assigned automatically. When Auto cannot be selected,
the default is the blade with the lowest number.
10. Optional. For Inflow Control, you can specify whether to restrict the flow of update I/O to the
journal volume. Enabling this setting delays the response to hosts. Also, by restricting the inflow
of data to one journal, you can allow other journals with higher-priority data unrestricted
inflow.
- Enable restricts inflow.
- Disable leaves inflow unrestricted. With Disable selected, if metadata or journal data is full,
update I/Os may stop.
11. Optional. For Data Overflow Watch, you can specify the number of seconds for the system to
monitor write data to the journal volume when the journal volume is full (100%). Range is
0-600 seconds. The default is 20.
12. Optional. For Cache Mode, you can specify whether to store journal data in the cache memory
on the remote side (restore journal).
- Enable: Journal data will be stored in the cache. When there is insufficient space in the cache,
journal data will also be stored into the journal volume. Enable is available only for journal
volumes of RAID-5 or RAID-6.
66 Cnt Ac-J Z configuration operations