Restrictions For Shadowimage Cascading Volumes - Hitachi VSP F1500 User And Reference Manual

Restrictions for ShadowImage cascading volumes

Pair Creation. Pair creation of S-VOL (oradb1) can only be performed after
the pair creation of S/P-VOL (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 S-VOL (oradb1) can only be performed after
the S/P-VOL (oradb) is in a SMPL or PSUS state, since ShadowImage copies
are asynchronous. If pair splitting of the S-VOL (oradb1) is attempted while
6-8
Figure 6-4 ShadowImage cascade volume pairs
Data replication operations with CCI
Command Control Interface User and Reference Guide