HP XP P9500 Storage - Manual (Page 29)

For more information about these configurations, see the HP XP P9000 Continuous Access Journal
User Guide.
Sharing volumes in a 3-Cnt Ac-J DC multi-target configuration
You can share BC volumes with Cnt Ac-J volumes in 3 DC multi-target configurations. You can
share the BC P-VOL and S-VOLs with Cnt Ac-J volumes, as shown in the following figure.
Figure 1 BC volumes in a 3-Cnt Ac-J DC multi-target configuration
In these configurations, BC pair operations are dependent on the pair status of the Cnt Ac-J
local-intermediate pair and the local-remote pair.
The following table shows the supported BC operations when the P-VOL is shared with Cnt Ac-J
P-VOL.
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.
The following table shows the supported BC operations when the S-VOL is shared with Cnt Ac-J
P-VOL.
BC operations Cnt Ac-J
intermed.-remote
pair status Cnt Ac-J
local-intermed.
pair status
Resync Suspend,
Delete Split Create
Quick Restore Normal Copy, Quick
Resync, Reverse Copy
NO NO YES NO NO PAIR or
COPY(PD)/COPY* COPY(PD)/COPY*,
or PSUS/SSWS
NO NO YES NO NO PSUS/SSWS PAIR or COPY
NO YES YES YES NO PSUS/SSWS PSUS/SSWS
* You cannot perform BC operations if the status for both Cnt Ac-J pairs is COPY(PD)/COPY.
Continuous Access Journal 29