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
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)
.
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)
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