<div>
Can either method be automated (internally or from another machine)?<br />
<br />
Also, how does Power on LAN actually work?<br />
<br />
Thanks<br />
SF
</div>


Can either method be automated (internally or from another machine)?

Also, how does Power on LAN actually work?

Thanks
SF

<div>
Thanks PeteLong - All working now using WOL.<br />
<br />
One interesting thing I found out was that the default installation of Fedora (Core 4 in my case) it not configured for WOL, which means when do you a shutdown -h now, the LAN card is actually turned off and not left in a state to accept future WOL magic packets.<br />
<br />
The fix was to add<br />
ETHTOOL_OPTS=&quot;wol g&quot; <br />
<br />
to<br />
/etc/sysconfig/network-scr<wbr />ipts/ifcfg<wbr />-eth0 <br />
<br />
Thanks a lot for the info.<br />
<br />
SF
</div>


Thanks PeteLong - All working now using WOL.

One interesting thing I found out was that the default installation of Fedora (Core 4 in my case) it not configured for WOL, which means when do you a shutdown -h now, the LAN card is actually turned off and not left in a state to accept future WOL magic packets.

The fix was to add
ETHTOOL_OPTS="wol g"

to
/etc/sysconfig/network-scripts/ifcfg-eth0

Thanks a lot for the info.

SF

<div>
<div class="content wysiwyg-content">
We are going through a stage of power cost review and have decided to turn a number of servers off automatically overnight.<br />
One such server is a HP ML350 G4P which is running Linux. &nbsp;We power it off using a script.<br />
<br />
Is there anyway we can get the server to turn itself back on at a specific time in the morning to save someone having to go and press the switch?<br />
<br />
Thanks<br />
SF
</div>
</div>


We are going through a stage of power cost review and have decided to turn a number of servers off automatically overnight.
One such server is a HP ML350 G4P which is running Linux.  We power it off using a script.

Is there anyway we can get the server to turn itself back on at a specific time in the morning to save someone having to go and press the switch?

Thanks
SF

Power saving with a Proliant server

Servers are computing devices that are similar to desktop computers in that they have the same basic components, but are significantly different in size, configuration and purpose. Servers are usually accessed over a network, and many run unattended, without a computer monitor, input device, audio hardware or USB interfaces. Many servers do not have a graphical user interface (GUI), and are configured and managed remotely. Servers typically include hardware redundancy such as dual power supplies, RAID disk systems, and ECC memory, along with extensive pre-boot memory testing and verification. Critical components might be hot swappable, and to guard against overheating, servers might have more powerful fans or use water cooling.

Server Hardware

The variety of Linux distributions creates myriad issues relating to configuration and operations when computers are networked, not the least of which is the use of various network management applications, some of which are included with specific distributions, while others are standalone applications.