*BSD News Article 87452


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From: "John" <noone@nowhere.com>
Newsgroups: comp.unix.bsd.freebsd.misc
Subject: Re: Jazz Drives
Date: 25 Jan 1997 21:24:46 GMT
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G.,
I'm running FreeBSD off of a Jaz drive, with the NCR 53C810 controller.  I
have had a couple of hiccups with this system that I can't explain:

1.  Everytime the system boots BSD, I get the following message when the
NCR driver does its probe on the Jaz drive:

  sd1(ncr0:2:0) illegal request asc:24,0 invalid field in CDB
  sd1(ncr0:2:0) could not mode sense (4).  Using ficticious geometry

  I have no idea what "ficticious geometry" is.  It doesn't sound good, but
BSD seems to run ok, and the disk partition/labeling portion of
installation reported the correct size of the Jaz drive.  

2.  On one occasion, *Something* corrupted the entire BSD file system.  I'm
not sure, but I think it happened when I mounted my FAT drive and moved
(with the mv command) a  .tgz file over onto the BSD side.  After the move,
the .tgz file was unreadable.  And of course it was gone from the FAT side,
so I couldn't check the integrity of the original file.  Shortly after
that, I discovered the root file system was also trashed.


Outside of those 2 things, BSD works ok with the Jaz/NCR combo.  As far as
performance is concerned, I have nothing to compare this system with.  In
general though, I'm pleased as punch with the Jaz drive; I run BSD off of
it, and I have my entire Windows NT development environment on a separate
cartridge.  It's noisier than hell, but it's at least as fast as my fixed
SCSI drive.

Hope this helps,
-John.

G.Mckenzie <weaver@peterboro.net> wrote in article
<5c4vt6$g1d@nr1.toronto.istar.net>...
> Can someone please inform me if they have attempted to run FBSD off of a
> Iomega Jazz Drive and if they recommend external or internal. What SCSi
> card do they recommend, will a NCR work ok with this models? What was is
> your opinion in regards to performance for running an OS???
> Any info is greatly appreciated.
> Thanx
> G. Mckenzie
> weaver@peterboro.net / cegsm@blaze.trentu.ca
>