Pair Volumes And Supported Emulation Types; Bc Z Licensed Capacity And Licensed Capacity Requirements - HP XP7 User Manual

Item
Maximum number of pairs
Consistency groups

Pair volumes and supported emulation types

The pair's P-VOL and S-VOLs must share the same emulation type. A volume's emulation type affects
the number of differential and pair tables you will need for BC Z. To create a pair, the P-VOL and
S-VOL must be the same size and emulation type (for example, both 3390-3).
Related topics
"Workflow for determining the maximum number of BC Z pairs" (page
"BC Z pair creation" (page

BC Z licensed capacity and licensed capacity requirements

The total capacity of all P-VOLs and S-VOLs must be less than or equal to the installed license
capacity. 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 a volume is used (For example, a
P-VOL used as the source volume for three pairs is counted only once).
After you start performing pair tasks, monitor your capacity requirements to keep the used capacity
within the capacity of the installed license.
You can use BC Z volumes in pairs for 30 days beyond the date the licensed capacity is exceeded.
After 30 days, you can only delete BC Z pairs.
For more information about licensed capacity, see the HP XP7 Remote Web Console User Guide.
12 Business Copy Z system requirements and planning
Requirement
You can share volumes with other software applications.
For more information about sharing volumes, see
(page 24).
You cannot use the following volumes as pair volumes:
Cnt Ac-J Z journal volumes
Command devices for BCM
TSE volumes
Volumes that have an emulation type of 3390-V
For more information about supported emulation types, see
emulation types" (page 12).
Per HP XP7 storage system: 32,768 pairs (if you pair one S-VOL per P-VOL).
Note: The maximum is dependent on the amount of installed shared memory.
For more information about installed shared memory, see
memory" (page 13).
For more information about determing the number of pairs your HP XP7 configuration will
support, see "Workflow for determining the maximum number of BC Z pairs" (page
Maximum per HP XP7 storage system: 256 (including BC, BC Z, and Fast Snap (FS))
Note: You cannot place BC, BC Z, and FS pairs in the same CG.
Maximum BC Z pairs per CG: 8,192
You can only use CGs reserved for BCM/IBM PPRC in BCM/IBM PPRC. You can only
use CGs that you created using RAID Manager in RAID Manager.
For more information about the requirements for CGs in BCM, see the HP XP7 Business
Continuity Manager User Guide.
For more information about how to manage CTG IDs, including how to reserve CGs, see
"Workflow for managing CG IDs for Business Copy Z" (page
37).
"Sharing Business Copy Z volumes"
"Pair volumes and supported
"Tables and installed shared
30).
13).
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