HP XP7 RAID Manager User Guide (T1610-96063)

Figure 47 Business Copy cascade volume pairs
Restrictions for Business Copy cascading volumes
Pair Creation. Pair creation of SVOL (oradb1) can only be performed after the pair creation of
S/PVOL (oradb). If you create the oradb1 pair first without creating the oradb, the subsequent
oradb creation will be rejected with EX_CMDRJE or EX_CMDIOE.
Pair splitting. Pair splitting of SVOL (oradb1) can only be performed after the S/PVOL (oradb) is
in a SMPL or PSUS state, since Business Copy copies are asynchronous. If pair splitting of the SVOL
(oradb1) is attempted while the S/PVOL (oradb) is in a COPY or PAIR state, the pairsplit
command is rejected with EX_CMDRJE or EX_CMDIOE.
Pair restore. Pair restore (resync from SVOL (oradb1) to S/PVOL) can only be performed when the
SVOL (oradb) and the PVOL (oradb2) on the S/PVOL are in a SMPL and PSUS state. If the pair
restore of SVOL (oradb1) is performed while either the SVOL (oradb) or PVOL (oradb2) on the
Business Copy operations 147