From owner-freebsd-stable  Wed Mar 19  8: 1:27 2003
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Date: Thu, 20 Mar 2003 01:01:21 +0900
Message-ID: <ybs1y135ory.wl@ett.sat.t.u-tokyo.ac.jp>
From: Hidetoshi Shimokawa <simokawa@sat.t.u-tokyo.ac.jp>
To: Andrew Gordon <arg-bsd@arg1.demon.co.uk>
Cc: Aaron Wohl <freebsd@soith.com>, <stable@FreeBSD.ORG>
Subject: Re: usb 2 or firewire in stable?
In-Reply-To: <20021223155014.O9439-100000@server.arg.sj.co.uk>
References: <20021223153915.A474F1754C@www.fastmail.fm>
	<20021223155014.O9439-100000@server.arg.sj.co.uk>
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At Mon, 23 Dec 2002 15:57:38 +0000 (GMT),
Andrew Gordon wrote:
> 
> 
> On Mon, 23 Dec 2002, Aaron Wohl wrote:
> 
> > Is anyone using usb 2 or fireware in 4.7 stable?  If so how?  I need one
> > or the other to do backups to an external disk.  The machine is a
> > production machine tho so I cant really go to current yet.  I tried some
> > usb 2 cards.  They show up as usb 1 cards and work ok but only at usb 1
> > speeds.
> 
> I am using firewire to do exactly that.  Cheap firewire cards in all my
> machines, couple of 180G external firewire hard drives as the storage
> media.  I put a normal filesystem on the drive, then run 'dump' through
> gzip to create backups.
> 
> Firewire support has been in -stable for a few months now.  It works well
> in general; throughput is good, the only problems I have run into relate
> to error handling under fault conditions (at one point I had a loose
> power connection on a drive, which lead to lock-ups rather than more
> graceful error handling).

Just plug in again. It sould restart transactions again in theory..
The driver freeze the CAM device queue if it losts the device, until
the device come up again or the device doesn't come up after several
bus resets.

/\ Hidetoshi Shimokawa
\/  simokawa@sat.t.u-tokyo.ac.jp
PGP public key: http://www.sat.t.u-tokyo.ac.jp/~simokawa/pgp.html

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