Eco-Mode - Fujitsu Eternus DX60 User Manual

Chapter 1 Overview
> 1.3 Functions
1.3.8

Eco-mode

Using Eco-mode allows the spindle rotation of the disk to be stopped for specified periods to
reduce power consumption. Disk spin-up and spin-down schedules can be set for each RAID
group, and can also be set to allow backup operations.
The following shows the Eco-mode mechanism.
Figure 1.19 Eco-mode mechanism
The following shows an Eco-mode backup scheduling example.
ETERNUS
DX60/DX80
Figure 1.20 Setting example for Eco-mode schedule
P3AM-3042-03ENZ0 ETERNUS DX60/DX80 Disk storage system User Guide
Disk spin-up
Working Phase
Online disks
Backup
Nearline disks
Disks stopped
Data Volume
Twenty-four 300GB SAS disks
RAID1+0
Backup Volume
Twenty-four 750GB Nearline SAS disks
RAID5
Disk spin-down
Backup Phase
Online disks
Nearline disks
Disks spinning
Control linked to usage
Backup
Activate the whole
system between
0:00 to 5:00
43
Working Phase
Online disks
Nearline disks
Disks stopped
12
12
Off On Off
5
AM PM
(0:00 to 12:00) (12:00 to 24:00)
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