Shared memory and the management area, Shared memory requirements, Changing shared memory – HP XP7 Storage User Manual

Page 28: Shared memory requirements changing shared memory, Related topics

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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’s licensed capacity.

The intended capacity

The intended volumes

Normal volume or
THP-VOL

Volume types

Software application

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 more information about licenses, see the HP XP7 Remote Web Console User Guide.

Related topics

“Thin Provisioning licensed capacity” (page 10)

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Shared memory and the management area

FS requires dedicated shared memory (SM) 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 SM.

To install the SM, contact HP Technical Support.

Related topics

“Workflow for switching off the power supply” (page 136)

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Shared memory requirements

The following table shows FS SM requirements:

Capacity available for additional SM

Capacity of all pools

None*

Under 1.1PB

8GB

From 1.1PB to 3.4PB

24GB

From 3.4PB to 7.9PB

40GB

From 7.9PB to 12.3PB

*You must expand SM if pool capacity is more than 1.1PB.

For more information about how to expand SM, contact HP Technical Support.

Changing shared memory

You can reduce or remove shared memory.

Prerequisite: The pools for THP, Smart, and FS have been deleted.

For more information about how to reduce or remove SM, contact HP Technical Support.

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Planning and design requirements

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