Virtual Lvi/Lun (Vll) - HP StorageWorks XP24000 User Manual

Virtual LVI/LUN (VLL)

Consider the following for Virtual LVI/LUN (VLL):
If you set the emulation type for the mainframe system as you map the external volume, you
need to format the mapped volume or perform the Write to Control Blocks operation using the
VLL function before you use the external volume.
For the volume formatting operation and Write to Control Blocks operation procedures, see
the HP StorageWorks XP24000/XP20000 Virtual LVI/LUN (VLL) and Volume Shredder User
Guide.
If you create LDEVs in an external volume using the VLL function, the cache mode of the created
LDEVs becomes the same as that of the source external volume.
Cache Residency Manager
Consider the following for Cache Residency Manager:
The bind mode of the Cache Residency Manager operation cannot be specified for the external
volume if the Cache Mode is set to Disable.
If you use the mapped external volume for the Cache Residency Manager operation and set
the bind mode, a cache of twice as much capacity as the user data is required for the Cache
Residency Manager operation.
Performance Monitor and XP Auto LUN
Consider the following for Performance Monitor and XP Auto LUN:
Performance Monitor can be used to display the monitoring information about the external
volumes.
Mapped volumes can be used for XP Auto LUN. For instructions on adjusting volume capacity,
see "Adjusting the Volume Capacities for Pairs" (page
For the configuration example of XP Auto LUN, see
XP Continuous Access and Hitachi TrueCopy™ for Mainframe
Mapped volumes can be used for XP Continuous Access and for TrueCopy for Mainframe. For a
configuration example of XP Continuous Access, see
HP StorageWorks XP Continuous Access Journal Software and Hitachi Universal
Replicator™ for Mainframe
Mapped volumes can be used for XP Continuous Access Journal and Universal Replicator for
Mainframe. For a configuration example of XP Continuous Access Journal, see
Access Journal Operations" (page
HP StorageWorks XP Business Copy Software and Hitachi ShadowImage™ for
Mainframe
Mapped volumes can be used for XP Business Copy and ShadowImage for Mainframe. For a
configuration example of XP Business Copy, see
HP StorageWorks XP Snapshot Software
Mapped volumes can be used for XP Snapshot. Consider the following for XP Snapshot:
Both internal and external volumes cannot be mixed in one pool.
All external volumes in the same pool must be in the same Cache Mode.
HP Confidential
"XP Auto LUN Operations" (page
"XP Continuous Access Operations" (page
32).
"XP Business Copy Operations" (page
Interoperability with other Products and Functions
151).
"XP Continuous
30).
31).
33).
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