[ubuntu-uk] Server shutting itself down or going into a deep sleep

[Alex Birchall]

Hi,

I've emailed this list before regarding my Hardy Heron 8.04 server and
it's worrying propensity to shut itself down.  

When this happens I lose all remote access to the server, but I can
still ping it and get a speedy reply.  And when I go into the server
room to look at the server, I can see that there seems to be a lot of
activity on the hard disk (indicated by flickering lights).
Unfortunately, the monitor shows "No Signal Input" and nothing I do on
the keyboard has any effect.  So the only option is to physically switch
the server off and on.

Am I right in thinking that the server has not actually shut down but
has gone into some kind of low level hibernation state?  Could it have
taken this action as a "sensible" response to some condition?  If so,
what kind of event would trigger this behaviour? Is there a way of
finding out from one of the many log files?  Can I stop it taking this
action?

Many thanks for your thoughts!

Best regards,

Alexander J Birchall
Library Systems Manager
Middlesex University
The Sheppard Library
The Burroughs
London NW4 4BT

Tel 0208 411 5235