HP XP External Storage Software - Manual (Page 47)

HP StorageWorks LUN Configuration and Security Manager XP user guide for the
XP12000/XP10000/SVS200.
• 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.
• Cache LUN XP
• You must set the IO Suppression mode to Disable to use the mapped external LU for Cache
LUN XP operations.
• You cannot specify Cache LUN XP's bind mode for an external LU that has Cache Mode set to
Disable.
• If you use the mapped external LU for a Cache LUN XP operation and set the bind mode, the
Cache LUN XP operation requires a cache that is twice the size of the user data.
• Continuous Access XP (Synchronous and Asynchronous)
You must set the IO Suppression mode to Disable to use the mapped external LU for Continuous
Access XP operations. For a Continuous Access XP configuration example, see
Using external LUs
for Continuous Access XP operations .
• TrueCopy for z/OS
You must set the IO Suppression mode to Disable to use the mapped external LU for TrueCopy for
z/OS operations.
• Continuous Access XP Journal
You must set the IO Suppression mode to Disable to use the mapped external LU for Continuous
Access XP Journal operations. For a Continuous Access XP Journal configuration example, see
Using external LUs for Continuous Access XP Journal operations .
• Universal Replicator for z/OS
You must set the IO Suppression mode to Disable to use the mapped external LU for Universal
Replicator for z/OS operation.
• Business Copy XP
You must set the IO Suppression mode to Disable to use the mapped external LU for Business Copy
XP operations. For a Business Copy XP configuration example, see
Using external LUs for Business
Copy XP operations .
• ShadowImage for z/OS
You must set the IO Suppression mode to Disable to use the mapped external LU for ShadowImage
for z/OS operations.
• Snapshot XP
You must set the IO Suppression mode to Disable to use the mapped external LU for Snapshot XP
operations. For a Snapshot XP configuration example, see
Using external LUs for Snapshot XP
operations .
• Compatible PAV for IBM z/OS
You must set the IO Suppression mode to Disable to use the mapped external LU for Compatible
PAV for IBM z/OS operations.
External Storage XP user guide for the XP12000, XP10000, SVS200 47