Snapshot, Fast snap, Cache partition clpr setting – HP XP P9500 Storage User Manual

Page 85: Auto lun, Resource partition

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Explanation

Business Copy S-VOL

Business Copy P-VOL

Note, however, that this combination consumes the same
amount of pool capacity as the normal volume.

The Quick Restore function is unavailable.

Normal volumes include the internal volumes and external volumes that are mapped to the volumes
of the external storage system using External Storage. For more information on external volumes,
see the HP XP P9000 External Storage for Open and Mainframe Systems User Guide.

You cannot specify a Thin Provisioning or Smart Tiers pool-VOL as a Business Copy P-VOL or S-VOL

Snapshot

You can use Thin Provisioning, Thin Provisioning Z, or Fast Snap pools in combination with Snapshot
to replicate V-VOLs.

The pool for Snapshot cannot be the same pool used for Thin Provisioning, Thin Provisioning
Z, or Fast Snap pools

Up to 128 pools in total can be used for Thin Provisioning (including Smart Tiers), Thin
Provisioning Z (including Smart Tiers Z), Snapshot and Fast Snap.

A pool-VOL cannot be shared among Thin Provisioning (including Smart Tiers), Thin Provisioning
Z, Fast Snap. and Snapshot.

Fast Snap

When using Thin Provisioning, Thin Provisioning Z, Fast Snap, and Snapshot in a storage system,
note the following:

The pool for Thin Provisioning (including Smart Tiers), the pool for Thin Provisioning Z (including
Smart Tiers Z), and the pool for Snapshot cannot be used in conjunction with Fast Snap. The
pool for Fast Snap cannot be used in conjunction with Thin Provisioning, Thin Provisioning Z
or Snapshot.

Up to 128 pools in total can be used for Thin Provisioning (including Smart Tiers), the pool
for Thin Provisioning Z (including Smart Tiers Z), Fast Snap, and Snapshot.

A pool-VOL cannot be shared with Thin Provisioning (including Smart Tiers), Thin Provisioning
Z (including Smart Tiers Z), Fast Snap, and Snapshot.

Cache Partition CLPR setting

THP V-VOLs and the associated pool volumes should be assigned to the same CLPR.

For a Thin Provisioning or Smart Tiers pool, different CLPRs can be assigned to THP V-VOLs in the
same pool. In this case, the CLPR assigned to the pool volumes is ignored.

For detailed information about CLPRs, see the HP XP P9000 Cache Partition User Guide.

Auto LUN

For more information, see the HP XP P9000 Auto LUN User Guide.

Resource Partition

See

“Resource group rules, restrictions, and guidelines” (page 30)

for the conditions of resources

that are necessary in the operation of other HP software and the precautions required when using
Resource Partition.

Using Thin Provisioning or Smart Tiers with other P9500 products

85

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