Xp Continuous Access Journal Operations - HP StorageWorks XP24000 User Manual
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the external storage system side, perform the Write to Control Blocks operation using the VLL
function to restore the volume.
For the volume formatting operation and Write to Control Blocks operation procedures, see
the HP StorageWorks XP24000/XP20000 Virtual LVI/LUN (VLL) and Volume Shredder User
Guide.
Go to step 4.
4.
Set the P-VOL and S-VOL of the XP Continuous Access pair, as shown in
Figure 15 Example of the XP Continuous Access Operations
XP Continuous Access Journal Operations
Figure 16 (page 33)
operation. The mapped external volume is set as the S-VOL of the XP Continuous Access Journal
pair, and the volume in the local storage system that is connected as the MCU is set as the P-VOL
of the XP Continuous Access Journal pair. For details on XP Continuous Access Journal, see the HP
StorageWorks XP24000/XP20000 Continuous Access Journal Software User Guide.
The procedure for the operation is as follows:
1.
Use XP External Storage to map the volume in the external storage system as an internal volume
of the local storage system, which is used as RCU for the XP Continuous Access Journal
operation.
You can select the emulation type of the mapped volume as you required. If you select the
emulation type for the open system (such as OPEN-V), go to step 2. If you select the emulation
type for the mainframe system (such as 3390-3), go to step 3.
For details on the mapping operation, see
(page
63).
2.
If you set the emulation type for the open system when you map the volume, the status of the
mapped volume automatically becomes Normal. However, the volume formatting processing
32
About XP External Storage Operations
shows the use of an external volume for the XP Continuous Access Journal
"Mapping an External Volume Automatically"
Figure 15 (page
32).
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