[rhelv6-beta-list] question about sleep (suspend to RAM)

Ljubomir Ljubojevic office at plnet.rs
Mon Sep 13 19:46:54 UTC 2010


I jumped a gun on WOL issue. I never used WOL so I forgot that part 
about bootup.

System -> Preferences -> More preferences -> Power Management.

On the first tab set amount of inactivity time to put the system to 
sleep, and on the General tab set the type of sleep (STR/hibernate)

A script to suspend the system is also possible to create, so you can 
WOL the system, ping it to see if it works and then suspend it once 
again by "expect" ssh script that will invoke suspend script.

Ljubomir

Gary Gatling wrote:
> 
> Hello,
> 
> Yeah, we want to suspend to RAM because we want someone to be able to 
> move the mouse or press the keyboard and have the system resume in a 
> reasonable about of time. (Is that possible? to wake up if the keyboard 
> is pressed or the mouse is moved? In Windows the power LED blinks when 
> the box is asleep... but it wakes up if you mess with it.) Also, we have 
> a "sir ping a lot" script that checks to see if all the machines are 
> still there a couple of times a day and it emails us. We already had to 
> modify the script to do two passes for Windows lab machines when they 
> started the sleep thing with Vista. The first ping wakes them up and the 
> second ping like a minute later tells us if a machines is broken or was 
> stolen. So we'd want to do the same thing with RHEL 6. Having the user 
> have to press the power button is not an option. It takes too long to 
> restore, almost as long as booting the OS. All of these machines are 
> DELLs. Mostly Optiplexes.
> 
> I know how to configure a laptop to sleep on lid events. I'm just not 
> clear on how you would do this with 10 minutes of inactivity... (No lid 
> on a desktop anyways)
> 
> Thanks for any ideas any one has about that. I'm using RHEL 6 beta 2 as 
> my main desktop so I can test on that machine. I can also install fedora 
> 13 but we are mostly interested in RHEL here.
> 
> Gary Gatling      | ITECS Systems
> 




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