Determining capacity of bc pairs in xp7 workflow, Bc licensed capacity and, Related topics – HP XP Racks User Manual

Page 12

Requirement

Item

•

Pool volumes

•

TSE volumes

Per XP7 storage system: 32,768 pairs (if you pair one S-VOL per P-VOL).

Maximum number of pairs

Note: The maximum is dependent on the amount of installed shared memory.

For more information about installed shared memory, see

“Tables and installed shared

memory” (page 13)

For more information about planning how many pairs you will need for BC, see

“Determining capacity of BC pairs in XP7 workflow” (page 12)

Maximum per XP7 storage system: 256 (including BC, BC Z, and Fast Snap (FS))

Consistency groups

Note: You cannot add BC, BC Z, and FS pairs to the same CG.

Maximum BC pairs per CG: 8,192

You can only use CGs that you created using RAID Manager in RAID Manager.

BC licensed capacity and licensed capacity requirements

P-VOLs and S-VOLs must have licensed capacity. The total capacity of pair volumes must be less
than the maximum volume capacity to which you are licensed. Volume capacity is counted only
once, even if you use the volume more than once. You do not need to multiply the capacity by the
number of times you will use it.

After you start performing pair tasks, monitor your capacity requirements to keep volumes’ total
size within your purchased capacity.

You can use BC volumes in pairs for 30 days beyond the date it exceeds the licensed capacity.
Beyond that time frame, you can only delete BC pairs.

For more information about licensed capacity, see the HP XP7 Remote Web Console User Guide.