SCSI Weirdness (was Re: SCSI timeouts with Advansys driver under Linux)

Nathan Bryant (
Fri, 6 Dec 1996 13:38:14 -0500 (EST)

Here's the latest news from the front lines in my battle with SCSI cards
and CD-R drives...

The Advansys card seems to be behaving now. Bob Frey sent me a patch which
fixes some lockups. It appears that the original SCSI timeouts were caused
by a bad CD; they only happened when I was reading from one particular CD.

However... I did a test-run with the HP 4020i CD-R drive, burning a CD in
"dummy" mode. It appeared to talk to the CD-R with no problems. But, after
it was done writing, cdwrite decided to wipe out my partition table and
send some weird commands to the hard drive causing it to spin down and
stop responding to the system until I powered everything down and
restarted! I had to recreate my partition table, reinstall LILO, and
reinstall Windoze 95 from scratch. (Of course.)

Now everything is more or less back to normal... cdwrite hasn't decided to
wipe out my partition table again, and I've successfully written a CD.

The only thing that's a little odd is that I can no longer write CD's at
double speed! I successfully wrote 2 or 3 CD's at 2X speed before all this
weirdness started happening.

| Nathan Bryant | Resident Unix Geek |
| | Burgess Business Solutions, Inc. |