Combining Bc And Continuous Access Xp Operations - HP StorageWorks XP10000 User Manual

• Use BC to provide on-site backup copies of
• Use Continuous Access XP Journal to provide remote backup of BC P-VOLs
Figure 17 BC and
NOTE: 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. For more information about combining BC, Continuous Access XP, and
Continuous Access XP Journal, see

Combining BC and Continuous Access XP operations

BC and
Continuous Access XP
remote backup for important data.
NOTE:
• BC is recommended for intra-disk array copy operations. If BC is not installed, use
(synchronous only) to copy within the same local disk array. This
requires at least one external ESCON® cable loop (minimum of two is recommended).
• Combining BC L1 and L2 pairs with
considers node and leaf volumes secondary volumes (S-VOLs).
NOTE: Reverse resync and quick restore operations cannot be performed on BC/
shared volume pairs.
The configuration shown in
P-VOL and BC P-VOL. With this configuration, you can perform the following:
• Use BC to provide on-site backup copies of
42 Business Copy XP (BC) for the XP10000/XP12000
Continuous Access XP Journal
Figure 22
can function together in the same disk array to provide both internal and
Continuous Access XP
Figure 18 is an example of a volume functioning as both a
Continuous Access XP Journal
: Shared P-VOL and P-VOL and P-VOL and S-VOL
and Figure 23.
Continuous Access XP
volumes is allowed.
P-VOLs
Continuous Access XP
P-VOLs and S-VOLs
Continuous Access XP
configuration
Continuous Access XP
Continuous Access XP
Continuous Access XP