Thanks to all who helped me with this. The problem is still not
100% solved. I could only manage to reduce the frequency from 20 or more times
a day to 1 or 2. Most of the answers pointed to the /etc/system file. I
should set scsi_options=0x58. One of the answers suggested to call Micropolis,
and I did. They told me to install patch # 101228. I did and didn't help
much. I remember reading a while ago on the net that the proper scsi_options
should be 0x78, so I tried it. And it seems that this with the patch reduced
the frequency of timeouts. Some people also told me to check the scsi
terminations, and as far as I can tell they are correct. I can't check the
SUN hard disk because SUN does not ship a manual with the hard drive.
I am almost believing John DiMarco (jdd@cdf.toronto.edu), who
said that they had this problem and it was only solved with the replacement
of the motherboard. I'll call SUN tomorrow...
For people that asked to send a copy of the solution, my advice is:
apply the patch and use first scsi_options=0x58, and if doesn't work, use
scsi_options=0x78.
After all, does anyone know exactly what these numbers for
the scsi_options mean? Is there a table of meanings??? Does anyone have
a list of variables that can be set on /etc/system and their meaning and
default values??
Thanks to everyone who helped!!!
misik@alpha.dcs.fmph.uniba.sk
bobr@houston.wireline.SLB.COM
bwalker@antares.com
jimm@csdc02.orl.mmc.com
Zuercher.Werner@ch.swissbank.com
strombrg@hydra.acs.uci.edu
kclau@hub.tem.nctu.edu.tw
nick@dsd.es.com
paulo@dcc.unicamp.br
mfriz@ms3.dseg.ti.com
Mauro
_______________________________________________________________________________
Mauro Jorge Atalla mauro@mother.esm.vt.edu
Department of Engineering Science and Mechanics (mauro@dpm.fem.unicamp.br)
Virginia Polytechnic Institute and State University
Blacksburg, VA 24061-0219 office:+1 (703) 231-9366
_______________________________________________________________________________
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