Hitachi ShadowImage for z/OS user guide (HIT9503-96009, January 2008)

Duplex
S-VOL
T-VOL
Resynchronized
Resync-R
S-VOL
T-VOL
Write Data
Host
A
ccess permitted
Host
A
ccess inhibited
A
ccess inhibited
A
ccess inhibited
Legend
: Time flow
: Data
Figure 8 Backward Pairresync Operations
Table Table 5 onpage34showstherequirementsforReverseandQuickRestorePairresyncoperations.If
you perform these operations on the pairs that do not fulfill the requirements, the reverse copy or quick
restore command is rejected.
Hitachi ShadowImage for z/OS user guide
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