Power saving with a Proliant server

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
sheepfarmerAsked:
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Pete LongConnect With a Mentor Technical ConsultantCommented:
WOL can be automated from a script on another machine http://www.depicus.com/wake-on-lan/wake-on-lan-cmd.aspx
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Pete LongConnect With a Mentor Technical ConsultantCommented:
Hello sheepfarmer,

Either use Power on LAN or turn it on with its inbuilt iLO card?

Regards,

PeteLong
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sheepfarmerAuthor Commented:
Can either method be automated (internally or from another machine)?

Also, how does Power on LAN actually work?

Thanks
SF
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sheepfarmerAuthor Commented:
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
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Pete LongTechnical ConsultantCommented:
:)ThanQ
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