HP XP P9500 Storage - Manual (Page 32)

The following table shows the BC operations that you can perform when the P-VOL is shared with
Cnt Ac-J S-VOL/P-VOL at intermediate site.
BC operations Cnt Ac-J
intermed.-remote
pair status Cnt Ac-J
local-intermed.
pair status
Resync -- Quick
Restore Resync --
Reverse Copy, Create, Split, Suspend, Delete,
Resync--Normal Copy, Quick Resync
NO NO YES PAIR or
COPY(PD)/COPY PAIR,
COPY(PD)/COPY*,
and
PSUS/SSWS
NO NO YES PSUS/SSWS PAIR or
COPY(PD)/COPY
NO YES YES PSUS/SSWS PSUS/SSWS
* You cannot perform BC operations if the status for both Cnt Ac-J pairs is COPY(PD)/COPY.
The following table shows the BC operations that you can perform when the P-VOL is shared with
Cnt Ac-J S-VOL at remote site.
BC operations Cnt Ac-J
intermed.-remote pair
status
Resync -- Reverse Copy,
Quick Restore Create, Split, Suspend, Delete,
Resync--Normal Copy, Quick Resync
NO YES PAIR or
COPY(PD)/COPY
YES YES PSUS/SSWS
Sharing volumes in a 3-Cnt Ac-J DC delta resync (cascade) configuration
The cascade delta resync configuration with shared BC volumes is shown in the following figure.
You can share BC P-VOLs with the delta resync P-VOL and the S-VOL.
Figure 4 BC volumes in a delta resync (cascade) configuration
When a delta resync pair is part of the 3 DC cascade configuration, supported operations for BC
pairs are dependent on the Cnt Ac-J pairs.
32 Sharing Business Copy volumes