HP StorageWorks XP Remote Web Console Software - Manual (Page 38)

The following sections provide configuration examples for specific HP software products:
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Using external LUs for Auto LUN XP operations
•
Using external LUs for Continuous Access XP operations
•
Using external LUs for Continuous Access XP Journal operations
•
Using external LUs for Business Copy XP operations
•
Using external LUs for Snapshot XP operations
The following HP software products support the use of mapped external LUs. For operations and
notes about each software product, see the product's user guide.
•
XP LUN Configuration and Security Manager Software
If you set an open-system emulation type when mapping the external LU, you must use
XP LUN Configuration and Security Manager Software to set the mapped LU's path. ◦
◦ You cannot use the mapped external LU as a NAS system volume.
◦ You cannot use the mapped external LU as a NAS user volume.
•
Volume Manager
If you set a mainframe-system emulation type when mapping the external LU, you must
format the mapped volume or perform the Write to Control Blocks operation using the ◦
Custom Volume Size (CVS) function before putting the external LU into use. For instructions,
see the HP XP LUN Configuration and Security Manager user guide: HP XP12000 Disk
Array, HP XP10000 Disk Array, HP 200 Storage Virtualization System.
◦ If you use the CVS function to create LDEVs from an external XP LU, the created LDEVs'
attributes (IO Suppression mode and Cache Mode) are the same as the source external
LU's.
◦ You cannot combine the local array internal LDEV and external LU to form a LUSE volume.
◦ Do not combine LDEVs of multiple external LUs to create a LUSE volume. You can only
use LDEVs in the same external LU to set LUSE volumes.
◦ You cannot combine external LUs that have different IO Suppression modes to form a
LUSE volume.
◦ You cannot combine external LUs that have different Cache Mode settings to form a LUSE
volume.
•
XP Cache LUN
You must set the IO Suppression mode to Disable to use the mapped external LU for XP
Cache LUN operations. ◦
◦ You cannot specify XP Cache LUN's bind mode for an external LU that has Cache Mode
set to Disable.
◦ If you use the mapped external LU for an XP Cache LUN operation and set the bind mode,
the XP Cache LUN operation requires a cache that is twice the size of the user data.
•
XP Auto LUN Base Monitor
XP Auto LUN Base Monitor can be used to display the monitoring information for the external
LUs.
You need to set the IO Suppression mode to Disable to use the mapped external volume for
the XP Auto LUN Software operation.
For the configuration example of XP Auto LUN Software, see Using external LUs for Auto LUN
XP operations .
38 Preparing for XP External Storage operations