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Figure 16 BC and Continuous Access XP Journal: Shared P-VOL and S-VOL
Figure 17 is an example of a volume that functions as both a Continuous Access XP Journal P-VOL and a
BC P-VOL, while the S-VOL of the same Continuous Access XP Journal pair also functions as the P-VOL of
another BC pair. This configuration allows you to:
• Use BC to provide on-site backup copies of Continuous Access XP Journal P-VOLs and S-VOLs
• Use Continuous Access XP Journal to provide remote backup of BC P-VOLs
Figure 17 BC and Continuous Access XP Journal: Shared P-VOL and P-VOL and P-VOL
and S-VOL
NOTE:
In the co
nfiguration shown in Figure 17, you cannot perform the Business Copy XP and Continuous
Access X
P Journal copy operations at the same time. In Figure 17, first you need to create and split the
Busine
ss Copy XP pair, then create the Continuous Access XP Journal pair. If you want to resynchronize
the Business Copy XP pair, suspend the Continuous Access XP Journal pair beforehand. Note that
you cannot change the Continuous Access XP Journal pair status while the Business Copy XP pair
is in PS
US(SP) status.
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 Figure 22 and Figure 23.
Business Copy XP user guide
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