Fujitsu Eternus DX100 S3 User Manual page 667

Chapter 6 Information Settings and Display
6.1 Performance > set raid-tuning
-disk-tuning
-throttle
-ordered-cut
■ Example(s)
The following example sets the performance tuning parameters for the RAID group named "R1". 10 is
specified for DCMF, 80% is specified for throttle, and 1024 is specified for ordered cut:
CLI> set raid-tuning -rg-name R1 -dcmf 10 -disk-tuning enable -throttle 80 -ordered-cut 1024
The following example sets the value of DCMF to 5 and disables disk tuning for the two RAID group named
"R1" and "R2":
CLI> set raid-tuning -rg-name R1,R2 -dcmf 5 -disk-tuning disable
The following example sets the DCMF to 10, the rebuild priority to "middle", and the drive access priority to
the Response priority mode for the RAID group named "R1":
CLI> set raid-tuning -rg-name R1 -dcmf 10 -rebuild-priority middle -drive-access-priority response
Optional. The default setting is "disabled". This parameter specifies whether to enable or
disable the tuning settings for disk accesses. If omitted, the existing setting is not changed.
When "disable" is specified, the "-throttle" and "-ordered-cut" parameters cannot be specified.
If omitted, the existing setting is not changed.
enable The tuning settings are enabled. (default)
disable The tuning settings are disabled.
Optional. This parameter specifies the ratio of command issues to disks as a percentage value.
This parameter can be specified only when "enable" is specified or is already set for the "-disk-
tuning" parameter. Between 10 and 100 (in increments of 10) can be specified. If omitted, the
existing setting is not changed.
10 – 100 Ratio of command issues to disks
Optional. This parameter specifies the interval for issuing the "Ordered Queue" command to
disks. This parameter can be specified only when "enable" is specified or is already set for the "-
disk-tuning" parameter. Enter a value between 0 and 65535. The initial value is 400. This
parameter cannot be specified if the RAID groups that are specified by the "-rg-number" or "-rg-
name" parameter include a RAID group that is configured with SSDs. If omitted, the existing
setting is not changed.
ordered_cut Interval for issuing the "Ordered Queue" command to disks (0 – 65535)
(initial value is 400)
ETERNUS CLI User's Guide
Copyright 2014 FUJITSU LIMITED
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