User Manual

databases, virtualization, and many applications, the delay might cause the application
or host operating system to time out and return an error.
The energy saved depends on model, but a common figure is that a drive uses 5.3W
during read/write operations, 3.4W while idle, and only 0.4W while in standby or sleep
mode.
Note: Hourly snapshots are not taken for spun-down disks, but daily snapshots are
taken.
Set or Change Disk Spin-Down
Allowing disks to slow or spin down when not being actively used can potentially save
power and extend the life of the disks, but this can also slow effective read/write speeds
and can make the disks appear to be off-line or cause time outs. You cannot enable
disk spin-down on systems with more than 8 bays.
To set or change the disk spin-down settings:
1. Log in to your ReadyNAS system.
2. Select System > Power.
The page updates showing the power settings.
3.
If not already expanded, expand Disk Spin-down.
4.
Select the Enable disk spin-down check box to enable spin-down, or, if it is enabled,
clear the check box to disable it.
5.
If spin-down is enabled, use the minutes of inactivity menu to select a delay of
between 5 minutes and 240 minutes of inactivity before the disks spin down.
Software Manual230System Power
ReadyNAS OS 6.10