Re: Disk idling and energy saving in darwin
Re: Disk idling and energy saving in darwin
- Subject: Re: Disk idling and energy saving in darwin
- From: Jim Riggs <email@hidden>
- Date: Thu, 3 Apr 2003 07:59:17 -0600
This may not be quite the right list for this, but I was wondering if
someone could tell me how to set a hard disk to idle after a timeout
in darwin. I can do this in OS X easily using System Preferences, but
I can't figure out how to do the same energy saving things in darwin.
Ideally I would be able to set a specific timeout after which to turn
of the disk, backlight, etc. Any help would be greatly appreciated.
These settings are stored in the System Configuration. Take a look at
the System Configuration plists in /var/db/SystemConfiguration.
Specifically, the file you need is
/var/db/SystemConfiguration/com.apple.PowerManagement.xml
If it does not exist, you can create it by hand or copy it from an OS X
box. Below is a copy of mine that I copied from OS X and set the
values as needed (beware of e-mail client line breaks). My disk is set
to not sleep (0), but you can change that to whatever is appropriate
for your setup.
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN"
"
http://www.apple.
com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>AC Power</key>
<dict>
<key>Automatic Restart On Power Loss</key>
<integer>1</integer>
<key>Disk Sleep Timer</key>
<integer>0</integer>
<key>Display Sleep Timer</key>
<integer>15</integer>
<key>System Sleep Timer</key>
<integer>0</integer>
<key>Wake On LAN</key>
<integer>1</integer>
<key>Wake On Modem Ring</key>
<integer>0</integer>
</dict>
</dict>
</plist>
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