From: Rizwan Sadiq (rizwan_sadiq@hotmail.com)
Date: Tue Nov 16 2004 - 20:21:42 EST
Dear Admins,
I am managing a Sun E-450 server, running solaris 8 with two processors and
512 MB RAM. Since yesterday evening, I am facing a strange problem. The
server hangs suddenly. If we isolate the server from network by pulling out
lan cable then it does not hang. But when the server is on the network it
hangs in just 15 min. Surprisingly the load average, swap utilization, io
wait state, top etc show normal values just seconds before it hangs.
I am running apache and qmail on it with effective RBL spam blocking. There
are no signs of any intrusion. We are using PIX firewall for security. I
have a standby server. I just changed the IP of that server and replaced the
problematic one. The stand by server shows same behaviour.
The log files,syslog and messages, do not show any error messages except the
following
SCSI: Warning: pci@1f,4000/scsi@3 (glm0) or
occassionaly this error : SCSI bus reset
I get this error only with the actual server. However, the standby server
does not give any error, it just hangs without any error message. I had
applied the sun recommended patch cluster on oct 2003. Now I am downloading
the latest patch cluster.
This server has been running without any problem since last 3 years or so
and recently there has been no change or upgradation done.
I wonder y this error is appearing. Can any one guide me about this problem.
We are an ISP and can not affoard such hangups as this machine is working as
RADIUS/Mail and web server. The load average of the machine is less than 2.0
(max.) and typically it is at 0.5.
Please help me in solving this issue please.
Thanks in advance, I will summarize.
Really worried,
Rizwan.
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