HP StorageWorks XP Remote Web Console Software - Manual (Page 19)

External Storage XP user guide 19
Writing new data to mapped external LUs
Figure 9 Writing new data to mapped external LUs
Figure 9 shows an example of writing new data from a host connected to the local disk array to a mapped
external LU. In this case, use the following procedure:
1. Use the External Storage XP GUI to map the LU in the external disk array as an internal XP LDEV of the
local disk array.
NOTE: You must set IO Suppression mode to Disable.
2. Choose the emulation type of the mapped LDEV.
• For XP10000/XP12000 open systems emulation types (such as OPEN-V, which HP recommends),
the status of the mapped LDEV is set automatically to Normal and is not formatted automatically. To
format the mapped LU, see the HP StorageWorks LUN Configuration and Security Manager XP User
Guide for the XP10000/XP12000.
• For mainframe system emulation types (for example, 3390-XX), the status of the mapped LU is set to
Blockade, pending resizing and formatting. Use Volume Management to format the volume. Or use
Volume Management to perform the Write to Control Blocks operation to restore the volume, if you
mapped the volume for which the data area is already zero-formatted on the external disk array.
For more information, see the HP StorageWorks LUN Configuration and Security Manager XP User
Guide for the XP10000/XP12000.
3. Map the Target port LU to the mapped LDEV. The mapped LDEV is available for host I/O operations.