User Manual

Enable Wake on LAN
Wake-on-LAN is a way to remotely power up a network-attached device, like a computer or storage system.
This feature allows you to conserve power by keeping a device turned off when it is not needed, but allows
a remote system to turn it on when it is needed.
Wake-on-LAN works when one network-attached device sends a signal, called a magic packet, to another
network-attached device. If wake-on-LAN is enabled in the target device, the packet signals the device to
power up.
Your ReadyNAS system supports wake-on-LAN on the first Ethernet port (LAN 1) only. By default,
wake-on-LAN is not enabled.
To enable wake-on-LAN:
1. Log in to your ReadyNAS.
2. Select System > Power.
3. If not already expanded, expand Wake On LAN.
4. Select the Wake On LAN check box.
What Is Disk Spin-Down
Disk spin-down reduces the rotation speed of your ReadyNAS disks.When the disks are spun down, power
consumption is reduced, the disks are quieter, and disk life is extended. However, the disks must spin back
up before the ReadyNAS can read or write data to them. This can cause an apparent slow down in disk
performance and, depending on the application, can cause time-outs.
You can control whether spin-down is used, how long a period of inactivity is needed before disk spin-down,
and if used, what days and times it is enabled. If you use spin-down and also use applications that
automatically read or write to the disks, either disable spin-down when the applications start writing to the
disks, or verify that the disks spin back up fast enough not to cause a time out. It can take up to 10 seconds
for disks to spin up. In some file server applications, a 10-second delay might be acceptable. For 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.
Hourly snapshots are not taken for spun-down disks, but daily snapshots are taken.Note
System Power
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ReadyNAS OS 6.9.3