Fast snap shared memory requirements, Removing shared memory, Fast snap volume requirements – HP XP P9500 Storage User Manual

Page 27

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The following table shows the FS volumes and capacity calculated as the FS usage. The total
amount of these values must not exceed FS license capacity.

The intended capacity

The intended volumes

Normal volume or
THP-VOL

The kind of volumes

Program product

The volume capacity

Normal volume

P-VOL

FS

The pool capacity used by
the volume

THP-VOL

The volume capacity

Normal volume

Pool VOL

For details about license, see the HP XP P900 Remote Web Console User Guide.

Fast Snap shared memory requirements

FS requires dedicated shared memory for the FS pair management area. The FS pair management
area is an area used to store information for associating FS pairs. This area is automatically created
when you install shared memory.

The following is a list of the shared memory requirements:

A minimum of 16 GB shared memory that consists of two sections.

To use a pool or V-VOL with a capacity of more than 1.1 PB, then shared memory must be
installed. Pool or V-VOL capacity requires an expanded status of the installed shared memory.

If a DP/DT Extension is required, your service representative must install the shared memory.

For more information about installing the shared memory, contact HP Technical Support.

Removing shared memory

You must delete all pools for THP, Smart, and FS before removing shared memory.

Fast Snap volume requirements

FS requires the following types of volumes:

P-VOLs

S-VOLs

pool-VOLs

The following tables lists the requirements for FS P-VOLs, S-VOLs, and pool volumes.

The following table shows the requirements for FS P-VOLs.

Requirement

Item

Logical volumes (LDEVs).

Volume type

You cannot specify the following volumes as FS P-VOLs:

pool volumes

FS S-VOLs

LUSE volumes

For more information about creating pairs using other
software applications, see

“Interoperability with other

software applications” (page 17)

.

OPEN-V

Emulation type

29,440

Maximum number of volumes

System requirements

27

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