Power Saving Function; Maid (Massive Array Of Inactive Disks) Technology - NEC M310 Configuration Manual

5. Functions <Power Saving Function (1)>
(1) Power Saving Function: MAID (Massive Array of Inactive Disks) Technology
Power Saving Function (MAID technology) reduces power consumption by turning off the motor power
of unused physical disk in backup volumes. The operation of disks, spare disks, and unassigned disks
in a pool can be controlled according to the status of volume usage which is specified by the logical
disks. By controlling the start/stop operation of the unused disks, the power function provides the
fundamental ability to support power saving operations in business.
n Example: M110 Configuration
Business
Server
Existing ： Power is always "ON"
MAID : Power is "ON" only at
operating backup
StoragePowerConserver, which is bundled in M-Series Storage, can stop unused disks and hot spare
disks. Power saving function requires Storage Manager and Storage Control Command when
performing the following operations.
- Start/Stop volume usage
- Start/Stop pool operation
- Set power saving mode for each pool
MAID Technology
Massive Array of Inactive Disks
～ Massive array of Inactive Disks ～
DDR
Operating
Copying
Pool
Pool
Operating
Dormant
Pool
Pool
Business volume Backup volume
M110
Time
for backup volume
HDD motor
power supply
Time
HDD motor
power supply
MAID 技 術
Backup Server
Storage Control Command
(Power Control)
Reduce Power
Consumption
Max.30%
Storage Manager Express
Access Control
Storage Power Conserver
Backup operation
ON
Backup operation
OFF
NEC Confidential
Management
Client
Server
Storage Manager Suite
LAN
ON ON
ON
OFF
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