Hitachi Virtual Storage Platform F400, System Administrator Manual

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Mode Category Description Default MCU/RCU
1069 Common By setting this SOM, the INQUIRY Page E3h field is
changed. The field varies depending on the
combination of SOMs 972, 973, and 1069. For details,
contact customer support (see SOM1069 sheet).
Notes:
1. This SOM is applied when the page problem
occurs in an environment where Symantec ASL
6.0.5 or higher is used and SOM 972 and/or 973
is set to ON.
2. When this SOM is set to ON, reclamation
processing is delayed.
3. The priority of setting when SOMs are set at the
same time is SOM 1069, 972, and then 973. The
setting of higher priority SOM is enabled.
OFF -
1070 Global-active
device
This SOM changes the processing for a group
operation with GAD consistency group (CTG).
Mode 1070 = ON: The status change of all pairs in a
consistency group. is performed for 50 msec.
Mode 1070 = OFF (default): The status change of all
pairs in a consistency group is performed for 1 msec.
Notes:
1. This SOM is applied when reducing the time to
complete status change of all pairs in a
consistency group at a group operation
(suspension and resync operation) with the GAD
CTG function. In a system configuration where
host I/O performance is prioritized, do not use
this SOM because setting this SOM may affect
the host I/O performance.
2. The MP usage rate increases during status
change of all pairs in a consistency group. For
details about approximate percentage increase
in MP usage rate, contact customer support (see
SOM1070 sheet).
OFF Both
System option modes
Appendix B: System option modes
System Administrator Guide for VSP Gx00 models and VSP Fx00 models 338