Mode
Category
Description
Default
MCU/RCU
1015
Universal
Replicator
When a delta resync is performed in a 3DC multi-
target
configuration
with TC and UR, this SOM is used
to change the pair status to PAIR/Duplex directly and
then complete the delta resync. If the delta resync
fails and all
differential
data items are copied, the
pair status changes to COPY/Pending regardless of
the SOM 1015 setting, and then it changes to PAIR/
Duplex.
When the existing delta resync function is required
(pair status changes to COPY/Pending and then to
PAIR/Duplex), set this SOM to ON before performing
delta resync. If SOM 1015 is set (ON or OFF) while
delta resync is being peformed, the setting is not
applied.
Mode 1015 = ON:
The pair status changes to COPY/
Pending and then to PAIR/Duplex when a delta
resync is performed in a 3DC multi-target
configuration.
Mode 1015 = OFF (default):
The pair status changes
directly to PAIR/Duplex when a delta resync is
performed in a 3DC multi-target
configuration.
Notes:
1.
The pair status changes directly to PAIR/Duplex
when this SOM is OFF (default). Set this SOM to
ON only when the status change to COPY/
Pending and then PAIR/Duplex is required.
2.
Set this SOM on the site of TC S-VOL in TC-UR
3DC
configuration.
If site switch by delta resync
might occur, set this SOM on both TC primary
and secondary sites.
3.
For microcode versions and storage system
models that do not support this SOM, even if
this SOM is set to OFF on L site of TC-UR delta
configuration,
the behavior does not change but
the status changes to COPY/Pending and then
the delta resync is completed.
4.
Regardless of the remote command device
setting, the copy status does not change to
COPY/Pending and then the delta resync is
completed.
5.
If a delta resync fails, all-data copy works. In this
case, the pair status changes to COPY/Pending
and then the delta resync is completed even
when this SOM is set to OFF.
OFF
MCU
System option modes
Appendix B: System option modes
System Administrator Guide for VSP Gx00 models and VSP Fx00 models
333
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