[9387] in linux-scsi channel archive
Re: shared SCSI buses
daemon@ATHENA.MIT.EDU (Eric Z. Ayers)
Mon Aug 14 09:59:53 2000
From: "Eric Z. Ayers" <eric@compgen.com>
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Message-ID: <14743.63654.547928.505022@gargle.gargle.HOWL>
Date: Mon, 14 Aug 2000 09:48:22 -0400 (EDT)
To: linux-scsi@vger.rutgers.edu
In-Reply-To: <200008141244.IAA01235@aslan.sc.steeleye.com>
Reply-To: Eric.Ayers@compgen.com
Eddie Williams writes:
...
>
> We have run into problems where SCSI Reservations or should I say reservation
> conflicts are treated as error conditions resulting in a Bus Resets. Negates
> the whole reason to have reservations. We are driving fixes for this into the
> Linux SCSI subsystem with Red Hat having implemented all of our changes in the
> 2.2.16 kernel they distribute and we are working to have these changes added
> to the core linux as well as other distributions.
The way that the default 2.2.x driver handles the error
RESERVATION_CONFLICT before this patch is indeed counter productive.
SCSI reservations won't work, and it means that you can't effectively
hook a linux box up to a SAN , because it keeps resetting the bus on
this error. Kudos to the steel-eye team for this patch.
-Eric
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