Date: Mon, 4 Nov 1996 13:04:09 +0600 From: Tim Pierce <twpierce@midway.uchicago.edu> To: proff@suburbia.net Cc: freebsd-hackers@freebsd.org Subject: Re: scsi dat drive under freebsd Message-ID: <9611041904.AA06751@bio-5.bsd.uchicago.edu> In-Reply-To: <199611041136.WAA09945@suburbia.net> (message from Julian Assange on Mon, 4 Nov 1996 22:36:56 %2B1100 (EST))
next in thread | previous in thread | raw e-mail | index | archive | help
[shouldn't this be on freebsd-questions?]
> Will freebsd support 4mm DAT tape drives?
My WangTEK 6300-mumble series worked out of the box, as it were.
There were a few growing pains, but I now suspect a misconfigured
adapter rather than any kernel problems.
> The solaris st driver documentation has some magic-data for 4mm
> DATs using Helical scans, which seems to imply that they need specific
> support?
The Solaris st(7) page gives me the impression that `magic-data'
is a (poorly-chosen) dummy name used as an example; note that the
ficticious manufacturer of the dummy drive is `Magic DAT'. It
should not be construed as evidence that 4mm drives necessarily
need `magic numbers' in order to run.
For example, here's the beginning of the st conf file on my
Solaris box:
name="st" class="scsi"
target=0 lun=0;
name="st" class="scsi"
target=1 lun=0;
name="st" class="scsi"
target=2 lun=0;
[ ... etc. ... ]
When I plugged the aforementioned WangTEK into this box, it worked
like a charm. Presumably you need to add magic data for drives
which don't work precisely according to the SCSI spec, or which
can't be properly auto-sensed -- items which FreeBSD handles via a
`rogue list'.
I'd guess that if you're thinking of buying a 4mm DAT for your
FreeBSD system, don't worry too much about it, but check the
handbook and the SCSI driver source for a list of rogue drives
first to make sure you don't wind up with something that needs to
be babysat.
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?9611041904.AA06751>