Using mapped volumes – HP XP Racks User Manual
Page 40
Required Role
•
Storage Administrator (Provisioning)
1.
Based on emulation type, perform one of the following:
•
For mainframe emulation, the status of the mapped volume becomes Blockade after
mapping. Format the volume using Virtual LVI to change to a normal status.
For zero-formatted external volumes, use Virtual LVI to perform the Write to Control Blocks
operation to restore the volume. Even if you formatted the volume from the external storage
side after recovering the mapped volume, you must perform the Write to Control Blocks
operation of the VLL feature after the formatting. For instructions, see the HP XP7
Provisioning for Mainframe Systems User Guide.
•
For open-system emulation, the status of the mapped volume automatically becomes
Normal. If you need to initialize the data area of the mapped volume, format the volume
using Virtual LUN.
2.
For both emulation types, set an LU path from a Target port to the internal volume, as shown
in the following figure.
The LU path enables host I/O to the mapped volume.
Using mapped volumes
When external volumes are mapped and ready for use, you can perform the operations supported
by External Storage. Review supported software products and operations in
software supported for external volumes” (page 26)
NOTE:
A mapped external volume can be accessed only from the local system. Do not access
the volume from a host connected to the external storage system.
Also, do not use external storage system functions to access the mapped external volume, including
copy functions.
Recognizing the local system from the external system
Though the local and external systems are connected, the external system may not recognize the
local system. If desired, you can try to make this happen by performing the Discover External Target
Ports operation. See
“Adding an external path to an existing path group ” (page 50)
for instructions.
40
Setting up external volumes