From: Doug Ledford <dledford@redhat.com>
To: Matthew Jacob <mjacob@feral.com>
Cc: "Justin T. Gibbs" <gibbs@scsiguy.com>,
Mike Brown <mbrown@emc.com>,
bferjul@emc.com, jkrasner@emc.com, conway_heather@emc.com,
linux-scsi@vger.kernel.org
Subject: Re: [PATCH] Ghost devices being reported with AIC7XXX version 6.2.6
Date: Thu, 31 Oct 2002 15:38:32 -0500 [thread overview]
Message-ID: <20021031203832.GG30047@redhat.com> (raw)
In-Reply-To: <Pine.BSF.4.21.0210311225260.23076-100000@beppo>
On Thu, Oct 31, 2002 at 12:26:15PM -0800, Matthew Jacob wrote:
> >
> > We currently only do report luns on SCSI-3 devices. I didn't think this
> > was a supported command on SCSI-2, but I hadn't checked the spec
> > recently...hmmm...nope, not supported in SCSI-2, so using report luns on
> > SCSI-2 devices is just as much a hack as going above lun 7 on SCSI-2
> > devices without specific knowledge of transfer interconnect.
>
> It's transitional in that a number of devices report as SCSI-2 but do
> things like REPORT LUNs. It's changing very fast though.
And we recently added INQUIRY with the EVPD bit set and an EVPD page 0.
>From the reports I've seen, I'm pretty sure it's causing a more than
trivial number of devices to lock up on boot. I suspect blindly pulling a
REPORT_LUNS on SCSI-2 devices would likely cause similar problems.
--
Doug Ledford <dledford@redhat.com> 919-754-3700 x44233
Red Hat, Inc.
1801 Varsity Dr.
Raleigh, NC 27606
next prev parent reply other threads:[~2002-10-31 20:38 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-10-31 17:03 [PATCH] Ghost devices being reported with AIC7XXX version 6.2.6 Mike Brown
2002-10-31 18:03 ` Justin T. Gibbs
2002-10-31 18:28 ` Matthew Jacob
2002-10-31 19:21 ` Alan Cox
2002-10-31 19:30 ` Matthew Jacob
2002-10-31 20:03 ` Doug Ledford
2002-10-31 20:04 ` Matthew Jacob
2002-10-31 20:17 ` Doug Ledford
2002-10-31 20:27 ` Matthew Jacob
2002-10-31 20:40 ` Matthew Jacob
2002-10-31 20:43 ` Doug Ledford
2002-11-01 13:00 ` Alan Cox
2002-11-01 1:41 ` Patrick Mansfield
2002-10-31 20:07 ` Doug Ledford
2002-10-31 20:26 ` Matthew Jacob
2002-10-31 20:38 ` Doug Ledford [this message]
2002-10-31 20:39 ` Matthew Jacob
2002-10-31 20:40 ` Mike Brown
2002-10-31 20:41 ` Matthew Jacob
2002-10-31 21:00 ` Mike Brown
2002-10-31 21:14 ` James Bottomley
2002-10-31 20:38 ` Mike Brown
2002-10-31 21:25 ` Doug Ledford
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