Sharing Volumes With Concurrent Copy; Sharing Volumes With Thin Provisioning Z And Smart Tiers Z; Sharing Volumes With Resource Partition; Sharing Volumes With Continuous Access Synchronous Z - HP XP7 User Manual

Related topics
"Reverse resynchronization" (page

Sharing volumes with Concurrent Copy

You can share BC Z S-VOLs with a Concurrent Copy primary volume (P-VOL). If you share a volume
with Concurrent Copy, you cannot perform a reverse copy or quick restore operation.
NOTE: Do not use Concurrent Copy secondary volumes (S-VOLs) for BC Z volumes.
Related topics
"Reverse resynchronization" (page

Sharing volumes with Thin Provisioning Z and Smart Tiers Z

Volumes created using Thin Provisioning for Mainframe (THP Z) or Smart Tiers for Mainframe (Smart
Z) can be used as BC Z P-VOLs or S-VOLs.
If you are using a THP volume as a BC Z P-VOL or S-VOL, the capacity of the THP pool allocated
to the volume is added to the BC Z licensed capacity.
Restrictions
The following restrictions apply:
If only the P-VOL or S-VOL uses THP Z or Smart Z, you cannot Quick Restore. The S-VOL
consumes the same amount of the pool capacity as the P-VOL.
If you plan to Quick Restore, you must use THP Z or Smart Z volumes for both the P-VOL and
S-VOL
You cannot perform BC Z pair tasks while increasing THP Z or Smart Z volume capacity.
Related topics
"BC Z licensed capacity and licensed capacity requirements" (page

Sharing volumes with Resource Partition

You can share BC Z P-VOLs and S-VOLs with Resource Partition by specifying them in a Resource
Partition resource group.
For more information about Resource Partition, see the HP XP7 Provisioning for Mainframe Systems
User Guide
Prerequisite: The resource group must be assigned to a user group for which you have privileges.
NOTE: You can only access one resource group from a host. Therefore, make sure that the
resource group volumes you use as P-VOLs and S-VOLs are in the group that the host can access.

Sharing volumes with Continuous Access Synchronous Z

You can share both BC Z P-VOLs and S-VOLs with Cnt Ac-S Z P-VOLs and S-VOLs. However, you
cannot share BC Z S-VOLs with Cnt Ac-S Z S-VOLs.
The write operation on the Cnt Ac-S Z P-VOL takes more time when you share a BC Z P-VOL with
a Cnt Ac-S Z S-VOL. This is especially true when the BC Z pair is in the process of being Quick
Split ("V-Split/SUSPVS" status) because of the BC Z pair copying time.
26 Sharing Business Copy Z volumes
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