Power consumption reduction - Eco-mode
Disk drives have Eco-mode support using MAID technology (*Note 1). This stops disk rotation at set times based on customer's
usage patterns.
Eco-mode reduces power consumption, as disk are powered down during periods of inactivity.
This time controlled mode, based on scheduled use of specific disks, can be setup for individual RAID groups and backup operations.
Rotation stops if scheduled disks are not accessed for specific periods, and restarts when a data access order is received.
Full rotation is restored in around one minute.
As shown in the following configuration example, the use of ETERNUS DX400 series and Eco-mode, with backup volumes (50 disk
drives) halted for 20 hours per day, achieves annual reductions of the order of 4,720kWh in power consumption and 1,830kg
in CO2 emissions. This is a 15% overall power reduction that helps to further reduce environmental burdens (*Note 2).
For an example its use with ETERNUS DX60 / DX80, see "Eco-mode cuts waste".
*Note 1: MAID technology is an acronym for "Massive Array of Idle Disks". This technology extends the life of disk drives
as well as reducing power consumption by stopping spindle rotation on less frequently accessed disk drives.
*Note 2: Comparison between all disk drives operating for 24 hours and for four hours a day. Calculated example used ETERNUS
DX400 series, savings may differ with other disk storage systems.
Product Requirements
| Supported Disk Storage Systems | ETERNUS DX60/DX80, DX400 series, DX8000 series ETERNUS4000, ETERNUS8000 |
|---|---|
| Supported Servers | Mission Critical IA/UNIX/Industry Standard Server |
