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Chapter 7 Thin Provisioning Pool Management
7.2 Functions in the Action Area for Thin Provisioning
7.2.8
Assign ECO Mode Schedule
This function assigns the ECO mode to the Thin Provisioning Pool.
ECO mode is a function to reduce power consumption by stopping motor of disks that configure
the TPP while the TPP is not accessed from the host.
When the ECO mode schedule is applied to a TPP, the ECO mode setting is enabled. When
ECO mode is running, disk motors are activated during the scheduled event term. During times
other than the scheduled time, disk motors are stopped.
If the TPP is accessed from the host while the disk motors are stopped, the disk motors are acti-
vated and can be accessed within 1 - 5 minutes.
Control Status
Schedule is not applied
Disks not registered in the TPPs
ECO Mode Schedule Setting
During
scheduled
event term
ON
Times other
than scheduled
event term
OFF
•
Before applying ECO mode for TPPs, use the procedure in
Modify ECO Mode General Setting" (page 540)
mode setting for the ETERNUS DX Disk storage system.
•
Set the ECO mode schedule using the procedure in
ECO Mode Schedule" (page
•
This function cannot be used under the following conditions:
-
No volumes are created
-
Configured by SSDs
•
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 during the ECO mode scheduled
time, the disk will be started even when the disk motor is inactive. Note
that the ECO mode schedule will be re-enabled when the following
conditions have finished.
-
When the target TPP status is not "Available"
-
When performing functions that change the TPP or the volume
configuration
-
When performing rebuild or copyback in the RAID groups that
configure the target TPP
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ECO Mode General Setting
Enabled
Disk motor is activated. (ECO mode is
running)
Disk motor is stopped. (ECO mode is
running)
If the RAID group is accessed, disk
motors are activated within 1 - 5
minutes.
The target disk motor is operating
constantly. (ECO mode is not running)
Disk motor is operating constantly.
(ECO mode is not running)
Disk motor is stopped constantly.
(ECO mode is running)
546).
166
Disabled
Disk motor runs
regardless of
schedule settings.
(ECO mode is not
running)
"11.2.6.1
to enable the ECO
"11.2.6.4 Modify
P2X0-1090-02ENZ0
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