[9365] in linux-scsi channel archive
Re: shared SCSI buses
daemon@ATHENA.MIT.EDU (Martin Peschke)
Fri Aug 11 12:01:10 2000
Date: Fri, 11 Aug 2000 17:30:14 +0200 (MET DST)
From: Martin Peschke <peschke@fh-brandenburg.de>
To: Mark Veteikis <mark@iphase.com>
cc: David Teigland <teigland@sistina.com>, linux-scsi@vger.rutgers.edu,
gfs-devel@sistina.com
In-Reply-To: <200008111435.JAA22792@sw10.Iphase.COM>
Message-ID: <Pine.GSO.4.10.10008111727430.8523-100000@zeus.fh-brandenburg.de>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII
On Fri, 11 Aug 2000, Mark Veteikis wrote:
> >
> >
> > I'm interested in combining two or more active hosts with multiple devices on a
> > single parallel SCSI bus. I've successfully done this, but don't know the
> > extent of problems which could arise when hosts or disks are added or removed
> > (crashed) on the in-use bus.
> >
> > A) How likely is it that the scsi driver(s) will see errors when nodes and
> > drives come and go and are there specific cases which are bad?
> >
> > B) What are the possibilities of a node surviving if it sees scsi errors?
> >
> > C) How much work would it take to make all these odd cases reliable?
> >
> > I'm interested in the status on both 2.2 and 2.4.
> > Thanks.
>
> Have you looked at Fibre Channel? Linux has support. Or are your
> target devices/HBAs locked into SCSI?
Does the Fibre Channel back-end of the Linux SCSI stack solve all the
problems? I am sceptic, since it relies on the SCSI stack.
Regards
Martin Peschke
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