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Unix server will not stay up on the network

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# 1  
Old 05-04-2005
Unix server will not stay up on the network



I am a beginner at UNIX. I have a server running SCO UNIXWARE 7.1.0
Every morning this week the server has been down. I have to Hardboot her to get her back online.

What commands can I do to help me diagnose what is going on?

This is urgent....thank you.
# 2  
Old 05-04-2005

If I were you I would go and check my logs /var you probably will find some interesting information there. Smilie
# 3  
Old 05-05-2005
another option, you can use sar command to check the system load. Im suspecting the system load might contribut the server to panic & thus hang.

sar -d

if the sar is not enabled by default on your machine enable it:
/usr/lib/sa/sar_enable -y
# 4  
Old 05-05-2005
Enable all logging for your logs as well.

One other thing, I would see if it always happens at the same/similar time of day. Also, check for failed hardware as well: faulty busses/nic cards/scsi adapters.

If you have any crash logs or core files, investigate those. If you have vendor support you might have to involve them.
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