how to keep os x awake?

[David Bélanger]

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?

Thanks in advance,
David


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David Bélanger
Graduate Student
School of Computer Science
McGill University
Office: MC226

Web page:   http://www.cs.mcgill.ca/~dbelan2/
Public key: http://www.cs.mcgill.ca/~dbelan2/public_key.txt