SUMMARY: scsi errors on 9.0Gb drive

From: Travis (tehoyt01@msuacad.morehead-st.edu)
Date: Sat Jul 01 1995 - 06:45:22 CDT


Ok, to start with...sorry I confused some of you with my fancy artwork.
Everything was in a one line chain but my diagram looked as if it were
somehow split at the cd-rom. Oh well.

I only tried one recommendation that came from two people that reported
they had the exact same problem. There recommendation worked and I'm
thankful.

It appears that Sun's default scsi options were set so that everything
in the chain was running at 10m/s which was confusing the tape drive and
causing the errors that I thought was being caused by the disk drive.
The fix for this is to create the file:

/kernel/drv/esp.conf

with this line it in:

scsi-options=0x178

This line seems to fix things and still supports Fast SCSI-2.

I tested the fix by reading a massive data run through our astronomy
application as well as tar -xvf <really big file>.tar in another window.
I had no errors and everything seemed to work fine.

There were many letters saying I needed to change terminators and shorten
my cables, while this is still true, for the cables at least...it seems
the above fix did the trick. Performance may not be the best but it
works and that's all I can ask for at this point.

Many thanks to:

cbarker@cp.tybrin.com
sitongia@ncar.ucar.edu
Steve_Pyrczak@racesmtp.afsc.noaa.gov
rali@hri.com
tl@gam0.phy.anl.gov
b.king@surrey.ac.uk
cus1hl@surrey.ac.uk
johnm@ntl.co.nz
icarr37863@aol.com
chrisc@Chris.Org
Pell@lysator.liu.se
andreww@adacel.com.au
kevin@uniq.com.au
Rainer.Ullrich@mch.sni.de
john@float.demon.co.uk
Jeff Marble

--
Travis Hoyt <tehoyt01@msuacad.morehead-st.edu>

"The world will be a much better place when the power of love outweighs the love of power" - Gerry Spence

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