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Chapter 6 RAID Group Management
6.2 Functions in the Action Area for RAID Group
ETERNUS Web GUI User’s Guide
Copyright 2013 FUJITSU LIMITED P2X0-1090-10ENZ0
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ECO Mode Schedule Setting
ECO Mode General Setting
Enabled Disabled
Control Status
ON
During scheduled
event term
Disk motor is activated. (ECO mode is
running)
Disk motor runs
regardless of
schedule settings.
(ECO mode is not
running)
Times other than
scheduled event
term
Disk motor is stopped. (ECO mode is
running)
If the RAID group is accessed, disk motors
are activated within 1 - 5 minutes.
OFF
The target disk motor is operating
constantly. (ECO mode is not running)
Schedule is not applied
Disk motor is operating constantly. (ECO
mode is not running)
Disks not registered in the RAID groups
Disk motor is stopped constantly. (ECO
mode is running)
• Before applying ECO mode for RAID groups, use the procedure in "11.2.8.1 Modify ECO Mode General
Setting" (page 869) to enable the ECO mode setting for the ETERNUS DX Disk storage system.
• Set the ECO mode schedule using the procedure in "11.2.8.4 Modify ECO Mode Schedule" (page 876)
.
• ECO mode is not available for the following RAID groups:
- No volumes are created
- A Storage Migration path is created in the volume
- Configured by SSDs
- Registered as an REC Disk Buffer
• RAID groups to which the Snap Data Pool Volumes (SDPVs) belong cannot be selected as the target for
disk motor management by the ECO mode.
• When using ECO mode, make sure to set the time/date correctly. If the time/date of the ETERNUS DX Disk
storage system is wrong, processes used for stopping and starting the disk motor cannot be performed
per the ECO mode schedule.
• If any of the following conditions occur even when the disk motor is inactive, the disk motor is activated.
The ECO mode schedule is re-enabled when the conditions listed have finished.
- When the target RAID group status is not " Available"
- When performing functions that change the RAID group or the volume configuration
- When performing rebuild or copyback in the target RAID group
- When LDE is being performed in the RAID group
- When formatting is being performed in the volumes registered in the RAID group
- When RAID migration is being performed in the volumes registered in the RAID group
- When Advanced Copy is being performed in the volume registered in the RAID group (copy session
status is not "Suspend" or "Tracking")
- When encryption is being performed in the volumes registered in the RAID group
- During maintenance
- When performing disk diagnosis, RAID group diagnosis, or when exporting G-List
- Module error related to access path to the Controller Modules and drives is detected
• Specify the same ECO mode schedule for all of the RAID groups that configure a WSV. If a different ECO
mode schedule is specified, activation of a stopped drive is required to accept the host access, and the
performance of the response may be reduced.