HP XP External Storage Software - Manual (Page 36)

Note: To migrate the existing data in the mapped external volume to the local storage system
volume using Auto LUN, set the emulation type to OPEN-V as you map the volume. The
emulation type must be OPEN-V to read out the existing data in the external volume from the
local storage system side.
Caution: To copy the existing data in the mapped external volume using the copy program
products of Remote Web Console such as Continuous Access and Business Copy, the emulation
type of the mapped external volume also has to be OPEN-V.
2. Prepare the local internal volume that has the same capacity as the mapped external volume.
Adjust the capacity of the internal volume as it is required using the LUSE function and VLL
function.
For the LUSE function, see the HP StorageWorks XP24000 LUN Expansion User’s Guide. For the
VLL function, see the HP StorageWorks XP24000 Virtual LVI/LUN (VLL) and Volume Shredder
User’s Guide.
Note: The emulation type of the prepared internal volume must be OPEN-V.
3. Set the mapped external volume as the source volume and local storage system internal volume
as the target volume.
4. Migrate the existing data in the mapped external volume to the local storage system internal
volume manually using Auto LUN.
Figure 14 Example of the Auto LUN Operation
Continuous Access Operations
Figure 15 on page 37 shows the use of an external volume for the Continuous Access operation. In
Figure 15 on page 37, the mapped external volume is set as the S-VOL of the Continuous Access pair,
and the volume in the local storage system that is connected as the multipoint control unit (MCU) is set as
the P-VOL of the Continuous Access pair. For details on Continuous Access, see the HP StorageWorks
XP24000 Continuous Access Software User and Reference Guide.
The procedure for the operation is described as follows:
1. Use External Storage to map a volume in the external storage system as an internal volume of
the local storage system, which is used as remote control unit (RCU) for the Continuous Access
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.
36 About External Storage Operations