HP StorageWorks External Storage XP user guide for the XP12000, XP10000, SVS200 (T1706-96009, October 2007)

ManualsBrandsHP ManualsSoftwareHP XP12000/XP10000 External Storage Enterprise Base Software

• If you use the CVS function to create LDEVs from an external XP LU, the created LDEVs'

attributes (IO Suppression mode and Cache Mode)arethesameasthesourceexternalLU'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

CacheLUNXPoperationrequiresacachethatistwicethesizeoftheuserdata.

• 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.

• Volume Security

You must set the IO Suppression mode to Disable to use the mapped external LU for Volume Security

operations.

• Volume Retention Manager

External Storage XP user guide