Hitachi Virtual Storage Platform, Руководство пользователя и справочник

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Hitachi VSP User and Reference Guide
2–22
Functional and Operational Characteristics
506 Universal
Replicator,
Universal
Replicator for
Mainframe This option is used to enable Delta Resync with no
host update I/O by copying only differential JNL
instead of copying all data.
The HUR Differential Resync configuration is
required.
Mode 506 = ON:
Without update I/O: Delta Resync is enabled.
With update I/O: Delta Resync is enabled.
Mode 506 = OFF ( default):
Without update I/O: Total data copy of Delta Resync
is performed.
With update I/O: Delta Resync is enabled.
Note:
Even when mode 506 is set to ON, the Delta Resync
may fail and only the total data copy of the Delta
Resync function is allowed if the necessary journal
data does not exist on the primary subsystem used
for the Delta Resync operation.
OFF MCU/RCU
530 Universal
Replicator for
Mainframe When a Universal Replicator for Mainframe pair is in
the Duplex state, this option switches the display of
Consistency Time (C/T) between the values at JNL
restore completion and at JNL copy completion.
Mode 530 = ON:
- C/T displays the value of when JNL copy is
completed.
Mode 530 = OFF (default):
C/T displays the value of when JNL restore is
completed.
Note:
At the time of Purge suspend or RCU failure
suspend, the C/T of Universal Replicator for
Mainframe displayed by Business Continuity
Manager or Storage Navigator may show earlier
time than the time showed when the pair was in the
Duplex state.
OFF RCU
531 Open and
Mainframe When PIN data is generated, the SIM currently
stored in SVP is reported to the host.
Mode 531 = ON :
The SIM for PIN data generation is stored in SVP
and reported to the host.
Mode 531 = OFF:
The SIM for PIN data generation is stored in SVP
only, not reported to the host, the same as the
current specification.
OFF MCU/RCU
Mode Category Description Default MCU/RCU