HP StorageWorks XP Remote Web Console Software - Manual (Page 21)

External Storage XP user guide 21
Using external LUs for Volume Migration under Auto LUN XP
Figure 11 Volume Migration using external LUs
Figure 11 shows an example using an external LU for the Auto LUN XP Volume Migration operation. The
mapped external LU is set as the source volume. The local disk array internal XP LDEV is set as the target
volume. Existing data in the external LU is (in effect) migrated manually to the internal XP LDEV on the local
disk array using Auto LUN XP volume migration. For detailed information, see the HP StorageWorks Auto
LUN XP User Guide for the XP10000/XP12000.
To perform this operation, follow these steps:
1. Use External Storage XP to map the LU in the external disk array as an internal XP LDEV of the local
disk array.
For this example, set the following attributes for the mapped LU:
• Emulation type: OPEN-V
• IO Suppression mode: Disable
For more information, see ”
Mapping external LUs ” on page 45.
CAUTION: To migrate existing data in the mapped external LU to a local disk array volume using
Auto LUN XP volume migration or BC XP, as shown here, set the XP10000/XP12000 emulation
type to OPEN-V. Only OPEN-V emulation can be used to read existing data in the external LU from
the local disk array side.
2. Prepare a local disk array internal XP LDEV with the same capacity as the mapped external LU. Adjust
the capacity of the internal XP LDEV as required using the LUSE and Volume Management functions.
For more information, see the HP StorageWorks LUN Configuration and Security Manager XP User
Guide for the XP10000/XP12000.
CAUTION: The emulation type of the XP10000/XP12000 prepared internal XP LDEV must be
OPEN-V.
3. Set the mapped external LU as the source volume, and set the local disk array internal LU as the target
volume.
4. Use Auto LUN XP to manually migrate the existing data in the mapped external LU to the local disk
array internal XP LDEV (without changing the associated port/LU).