Skip site navigation (1)Skip section navigation (2)
Date:      Tue, 11 Aug 1998 17:12:04 -0700
From:      "Ron 'The Insane One' Rosson" <insane@oneinsane.net>
To:        freebsd-hackers@FreeBSD.ORG
Subject:   Re: EXA 8200 tape drive on FreeBSD?
Message-ID:  <19980811171204.A16317@oneinsane.net>
In-Reply-To: <199808111811.UAA00917@yedi.iaf.nl>; from Wilko Bulte on Tue, Aug 11, 1998 at 08:11:46PM %2B0200
References:  <199808110035.TAA00818@nospam.hiwaay.net> <199808111811.UAA00917@yedi.iaf.nl>

next in thread | previous in thread | raw e-mail | index | archive | help
The below is hwat I use without problem. We also have one attatched to a 
ncr controller as well. Try this to see if your 8200 works

tar -cvf - . |dd of=/dev/rst0 bs=10k

Here is what my dmesg has.
ahc0 <Adaptec 2940A Ultra SCSI host adapter> rev 1 int a irq 9 on pci0:18:0
ahc0: aic7860 Single Channel, SCSI Id=7, 3 SCBs                          
(ahc0:5:0): "EXABYTE EXB-8200 2618" type 1 removable SCSI 1

On Tue, Aug 11, 1998 at 08:11:46PM +0200, Wilko Bulte wrote:
> As David Kelly wrote...
> > Stefan Esser writes:
> > > On 1998-08-09 17:32 +0200, Peter van Heusden <pvh@leftside.wcape.school.za> w
> > > rote:
> > > > However, I cannot write to it at all - even after a 'mt erase', I get the
> > > > following:
> > > > 
> > > > bash# mt rewind
> > > > bash# dd if=/kernel of=/dev/nrst0 bs=64 count=1024
> > > > dd: /dev/nrst0: Input/output error
> > > > 1+0 records in
> > > > 0+0 records out
> > > > 0 bytes transferred in 0.082043 secs (0 bytes/sec)
> > > > bash# 
> > > 
> > > Did you try shorter transfers (less than 64KB blocks) ?
> > > 
> > > I seem to remember, that the EXABYTE 8200 was limited to
> > > less than 64KB per block (i.e. 63KB works, but 64KB doesn't).
> > 
> > "bs=64" spells out 64 byte blocks, not 64k. "bs=64k" would be 64k.
> > 
> > There might be a problem with the block being too small.  :-)
> > 
> > SGI Irix defaults to 128k blocks on Exabyte 8mm drives, including the 
> > 8200. Its FreeBSD that won't (can't) do more than 64k.
> 
> I think the 8200 uses 1 kB blocks itself by default.
> 
> > As others have mentioned, when a new (new to you) Exabyte drive acts
> > flaky its time to flash the EEPROMs or burn new EPROMs for the old 8200.
> > I too have a new-to-me 8200 that ID's, rewinds, retensions, ejects, and
> > all that good stuff. But doesn't work. If new EPROMs don't fix it, then
> > its junk. That too is standard failure mode for an Exabyte.
> 
> Exabytes are not the most robust of devices yes..
> 
> _     ______________________________________________________________________
>  |   / o / /  _  Bulte 				  email: wilko @ yedi.iaf.nl 
>  |/|/ / / /( (_) Arnhem, The Netherlands          WWW:   http://www.tcja.nl
> ______________________________________________ Powered by FreeBSD __________
> 
> To Unsubscribe: send mail to majordomo@FreeBSD.org
> with "unsubscribe freebsd-hackers" in the body of the message

-- 
--------------------------------------------------------
Ron Rosson              ... and a UNIX user said ...
The InSaNe One                    rm -rf *
insane@oneinsane.net      and all was null and void
--------------------------------------------------------
It's so nice to be insane, nobody asks you to explain.

To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-hackers" in the body of the message



Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?19980811171204.A16317>