2-28
About Universal Volume Manager Operations
Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
Examples of Using External Volumes with Other Products
For the following USP V/VM program products, the examples of using external
volumes are described in the following subsections:
•
•
•
Universal Replicator Operations
•
•
Copy-on-Write Snapshot Operations
Volume Migration Operations
Figure 2-12 shows the use of an external volume for the Volume Migration
operation. The mapped external volume is set as the source volume and the
local internal volume is set as the target volume. Existing data in the external
volume is migrated manually to the local storage system internal volume using
Volume Migration. For detailed information on the Volume Migration operation,
see the
Performance Manager User’s Guide
.
The procedure for the operation is as follows:
1.
Use Universal Volume Manager to map a volume in the external storage
system as an internal volume of the local storage system.
For the case such as Figure 2-12, set the attributes of the mapped volume
as follows:
Emulation type: OPEN-V
Note:
To migrate the existing data in the mapped external volume to the
local storage system volume using Volume Migration, 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 Storage Navigator such as TrueCopy and
ShadowImage, 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
LUN Expansion User’s Guide
. For the VLL
function, see the
Virtual LVI/LUN and Volume Shredder User's Guide
.
