From mboxrd@z Thu Jan 1 00:00:00 1970 From: Doug Ledford Subject: Re: [PATCH] Ghost devices being reported with AIC7XXX version 6.2.6 Date: Thu, 31 Oct 2002 15:38:32 -0500 Sender: linux-scsi-owner@vger.kernel.org Message-ID: <20021031203832.GG30047@redhat.com> References: <20021031200758.GB30047@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: List-Id: linux-scsi@vger.kernel.org To: Matthew Jacob Cc: "Justin T. Gibbs" , Mike Brown , bferjul@emc.com, jkrasner@emc.com, conway_heather@emc.com, linux-scsi@vger.kernel.org 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 919-754-3700 x44233 Red Hat, Inc. 1801 Varsity Dr. Raleigh, NC 27606