HP XP Business Copy Software - Manual (Page 28)

28 Business Copy XP (BC) for the XP10000/XP12000
NOTE: When a reverse or quick restore pairresync operation is in progress, you cannot perform
paircreate, pairsplit, or pairresync operations for any other pairs sharing the same P-VOL (pairsplit-S and
pairsplit-E are allowed).
Figure 6 BC P-VOL forming pair with Continuous Access XP S-VOL and external S-VOL, respectively
Figure 7 BC P-VOL forming pair with external S-VOL and shared as Continuous Access XP S-VOL
Figure 8 BC S-VOL forming pair with external P-VOL and shared as Continuous Access XP P-VOL
Figure 9 BC P-VOL forming pair with Continuous Access XP Journal S-VOL and External S-VOL, respectively
Figure 10 BC P-VOL forming pair with external S-VOL and shared as Continuous Access XP Journal S-VOL
Use the Pairresync window (see ” Resynchronizing BC pairs (Pairresync) ” on page 67) to resynchronize split
and suspended BC pairs. When the pairresync operation starts, the pair status changes to COPY(RS) or
COPY(RS-R). When the pairresync is complete, the pair status changes to PAIR. The disk array resumes BC
update copy operations after the pair status changes to PAIR. The P-VOL remains fully accessible during a
normal pairresync operation, but becomes inaccessible to all hosts during a reverse or quick restore
pairresync operation. This ensures that data on the P-VOL is identical to data on the S-VOL when the
reverse or quick restore pairresync operation completes.