Date: Fri, 9 Mar 2007 14:28:50 -0800 (PST) From: mjacob@freebsd.org To: Ivan Voras <ivoras@fer.hr> Cc: freebsd-current@freebsd.org, freebsd-stable@freebsd.org, Matt Jacob <mjacob@freebsd.org> Subject: Re: MFC request: QLogic 24xx FibreChannel controller Message-ID: <20070309142834.S61513@ns1.feral.com> In-Reply-To: <45F1C77C.8010103@fer.hr> References: <esruhl$8s9$1@sea.gmane.org> <45F18183.7050405@FreeBSD.org> <45F182F2.10604@fer.hr> <ess83u$j2c$1@sea.gmane.org> <70e8236f0703091240q65d45300u836121454d799c64@mail.gmail.com> <45F1C77C.8010103@fer.hr>
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The GEOM multipath code hasn't been MFC'd yet. On Fri, 9 Mar 2007, Ivan Voras wrote: > Joao Barros wrote: >> On 3/9/07, Ivan Voras <ivoras@fer.hr> wrote: >>> I'm not familiar with this hardware, but I'm curious why I see the one >>> test drive I assigned to it twice. I seem to recall reading somewhere a >>> discussion for Linux in which it's been mentioned that one of these >>> should be a read-write and another "read-only" device, but is this >>> correct? I can write to both drives. >> >> I'd say because you have a multipath setup, the driver being the exception. >> I guess the in house isp guru Matt Jacob can give you a better >> explanation ;) > > I don't think it's because of multipath (as far as I understand it) > because both disks are atached to isp0: > > da1 at isp0 bus 0 target 0 lun 0 > da2 at isp0 bus 0 target 1 lun 0 > > There are two FC switches, but AFAIK a multipath setup would have, for > example one disk coming from isp0 and the other from isp1, as isp0 and > isp1 are connected to two switches... > > It's entirely possible that something's ill defined in the FC management > console (I din't do it - it's another guy's responsibility :) ) > >
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