42 External Storage XP for the XP12000/XP10000
Using external LUs for Business Copy XP operations
Figure 17 shows an example of using an external LU for Business Copy XP operations. The mapped
external LU is set as the Business Copy XP pair’s S-VOL, and the local disk array internal XP LDEV is set as
the Business Copy XP pair’s P-VOL. For more information, see the HP StorageWorks Business Copy XP user
guide for the XP12000/XP10000.
Figure 17 Using external LUs for Business Copy operations
1. Use External Storage XP to map the LU in the external disk array as an internal XP LDEV of the local
disk array.
CAUTION: Set the IO Suppression mode to Disable.
Select the mapped volume’s emulation type as required. If you select an open-system emulation type
(such as OPEN-V), go to step 2. If you select a mainframe-system emulation type (such as 3390-3), go
to step 3.
For more information, see ”Mapping external LUs (Add LU)” on page 60.
2. If you set an open-system emulation type when mapping the volume, the mapped volume’s status
automatically becomes Normal. However, the volume-formatting process is not automatically executed.
To optionally format the mapped volume, use the Custom Volume Size (CVS) function. For instructions,
see the HP StorageWorks LUN Configuration and Security Manager XP user guide for the
XP12000/XP10000.
Go to step 4.
3. If you set a mainframe-system emulation type when mapping the volume, the mapped volume’s status
becomes Blockade. To format the volume, use the CVS function. To restore the volume, perform the
Write to Control Blocks operation if you mapped a volume for which the data area has already been
zero-formatted on the external disk array side. For instructions, see the HP StorageWorks LUN
Configuration and Security Manager XP user guide for the XP12000/XP10000.
Go to step 4.
4. Use Business Copy XP to set the Business Copy XP pair’s P-VOL and S-VOL.
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