Hi,

We have installed Suse 10 on a DELL poweredge 2900 server.
The server freezes (sleep mode?) after couple of hours of inactivity. Doesn't respond to telnet/ssh/vnc etc, the only thing that it responds to is ping. The only way forward is to reboot the machine.

The specs of the machine are:

- Intel Xeon Quadcore Processor
- 24G RAM

Following are few lines that correspond to sleep mode from /var/log/warn file:

Nov 11 17:28:57 oracle01 zmd: ShutdownManager (WARN): Preparing to sleep...
Nov 11 17:28:57 oracle01 zmd: ShutdownManager (WARN): Going to sleep, waking up at 11/12/2008 15:48:57

Nov 12 16:48:56 oracle01 zmd: ShutdownManager (WARN): Preparing to sleep...
Nov 12 16:48:56 oracle01 zmd: ShutdownManager (WARN): Going to sleep, waking up at 11/13/2008 15:38:56

Any hints? Past experiences if shared would be appreciated.