how to keep os x awake?

[Samuel Rydh]

On Wed, Jan 14, 2004 at 01:19:41AM -0500, David Bélanger wrote:
> 
> Hi,
> 
> I noticed for some time that OS X seems to "fall asleep" when through
> mol and not interactively used.  This even occurs if OS X file system is
> used.  I am not talking about a hardware sleep here, by sleep in the
> discussion that follows, I mean OS X that becomes unresponsive.
> 
> This is problematic if NFS is used.  NFS access will stall after a time.
> Switching to OS X console will "awake" OS X and unblock NFS.
> 
> Because most of my free space is on OS X side, I download CD iso on X
> but then pipe them through ssh to my PC to burn them.  If OS X falls
> asleep then it is problematic...
> 
> Note: In OS X, time to sleep is set to 1 hour in case this matters but period
> much shorter...
> 
> Anyone seen this behaviour?
> Is there a way to prevent it or some signal that could be sent to
> either mol or some process of OS X to keep it awake?
> 

In order to conserve power, OSX tends to powerdown the ethernet
card. I think this happens too often because the MOL OSX driver does
not properly collect transfer statistics.

I'll take a look at it...

/Samuel