HP XP Business Copy Software - Manual (Page 47)

Figure 17 BC and Continuous Access XP: Shared P-VOL/P-VOL and P-VOL/S-VOL
.
The configuration shown in Figure 18 is an example of a volume functioning as both a BC S-VOL and
Continuous Access XP P-VOL. With this configuration, you can use Continuous Access XP to provide
asynchronous remote copy.
NOTE:
This configuration does not allow BC and Continuous Access XP to copy at the same time. Create the
BC pair first, and then split the pair before creating the Continuous Access XP pair. You must suspend
the Continuous Access XP pair to resync the BC pair. The Continuous Access XP pair status cannot
be changed when the BC pair is in PSUS(SP) status.
Figure 18 BC and Continuous Access XP: Shared S-VOL/P-VOL
.
Usually Continuous Access XP and Continuous Access XP Journal can share volumes with BC. However,
in some cases, you cannot create BC pairs using volumes shared with Continuous Access XP and
Continuous Access XP Journal.
Figure 19 and Figure 20 show examples of when you cannot create
BC pairs using volumes shared with Continuous Access XP and Continuous Access XP Journal.
NOTE:
A Continuous Access XP Journal primary volume (P-VOL) means a Continuous Access XP Journal
primary data volume. A Continuous Access XP Journal secondary volume (S-VOL) means a Continuous
Access XP Journal secondary data volume.
Figure 19 is an example of a volume functioning as both a Continuous Access XP Journal S-VOL and
a Continuous Access XP P-VOL. In this configuration, you cannot use this volume as the P-VOL of a
BC pair.
XP Business Copy User Guide 47