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Date:      Thu, 10 Sep 1998 02:05:05 -0600
From:      Warner Losh <imp@village.org>
To:        chad@dcfinc.com
Cc:        stable@FreeBSD.ORG, questions@FreeBSD.ORG
Subject:   Re: SCSI tape drives 
Message-ID:  <199809100805.CAA01759@harmony.village.org>
In-Reply-To: Your message of "Wed, 09 Sep 1998 23:30:34 PDT." <199809100630.XAA08373@freebie.dcfinc.com> 
References:  <199809100630.XAA08373@freebie.dcfinc.com>  

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In message <199809100630.XAA08373@freebie.dcfinc.com> "Chad R. Larson" writes:
: Does anyone here have any experience with SCSI Travan drives under
: FreeBSD?  If so, how are they working out?

I have been using the ATAPI versions of the travan drive on my
-current box for several months now.  I've been doing daily backups on
them for the past couple of weeks.

The drive is good for about 400kB/s or so (although this will vary
from about 350kB/s to 450kB/s depending on the drive I use).

I've had problems with Sony media last year, but the stuff I bought
recently works.

The PPro that I have has the 440FX chipset, so its IDE isn't quite up
to snuff and I needed to put an ISA ide controller into the box to get
it working (although I could have purchased a PCI IDE controller).
Before I did this, Soeren and I were tearing our hair out over what
to do.

Overall, I'd say that Travan is low end.  I got it because it was
cheaper to get two IDE tape drives (I think I paid $185 each[*]) and
give one to the FreeBSD project than it was to buy one SCSI tape drive
(at the time $450 was the lowest I could find, although I kinda wish
I'd gone for the $550 4mm with 4 tape magazine).

I'd rate Travan in general as OK for light use, on a personal system,
but I wouldn't put it into a "enterprise" setting.  I think I may be
pushing the limits with might nightly dumps, but so far so good.  I
change tapes when I feel like it.  I do a level 0 every so often.

I don't know how the Travan on SCSI would work for you, but I suspect
that you'd have fewer oddball IDE related problems if you went that
route, and parted with an extra $100.

Warner

[*] Not counting the pair I picked up at a garage sale for $1.00.  One
was missing its tape head, and the other one seems to work
wonderfully.

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