Date: Thu, 10 Nov 2005 15:01:13 +0100 From: Pawel Jakub Dawidek <pjd@FreeBSD.org> To: Poul-Henning Kamp <phk@phk.freebsd.dk> Cc: Danny Howard <dannyman@toldme.com>, freebsd-geom@freebsd.org, babkin@users.sf.net, freebsd-hackers@freebsd.org Subject: Re: GEOM for multipath? How? Message-ID: <20051110140113.GC29291@garage.freebsd.pl> In-Reply-To: <5582.1131630495@critter.freebsd.dk> References: <32275093.1131627986609.JavaMail.root@vms170.mailsrvcs.net> <5582.1131630495@critter.freebsd.dk>
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--MnLPg7ZWsaic7Fhd Content-Type: text/plain; charset=iso-8859-2 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Thu, Nov 10, 2005 at 02:48:15PM +0100, Poul-Henning Kamp wrote: +> In message <32275093.1131627986609.JavaMail.root@vms170.mailsrvcs.net>, = Sergey=20 +> Babkin writes: +> >>From: Danny Howard <dannyman@toldme.com> +> > +> >>Hey ... yes, I recall there being issues with the QLogic drivers ... I +> >>wonder if anyone has given the mpt drivers a shot? I was able to speak +> >>with an engineer at Engenio (now owned by LSI) and she said there were +> >>some issues with the QLogic dual-port cards that were interesting to +> >>her, but the LSI dual-port cards behaved differently ... +> > +> >QLogic worked fine in multi-path configuration with UnixWare. +> >I think LSI and Adaptec did too. The only trick is to make sure=20 +> >that the IRQs of the cards are not shared between the cards or with +> >any other device. +>=20 +> I suspect it is not the card as much as the driver, but I am not sure. I was able to modify the driver in a way multipathing started to work (no more hanging request when path was disconnected). It was hackish, but worked, so I'm quite sure it's driver's fault. --=20 Pawel Jakub Dawidek http://www.wheel.pl pjd@FreeBSD.org http://www.FreeBSD.org FreeBSD committer Am I Evil? Yes, I Am! --MnLPg7ZWsaic7Fhd Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2 (FreeBSD) iD8DBQFDc1KpForvXbEpPzQRAt8ZAKC5L+cJOGO+O/n8roo7b31zDO0mYQCfWebc V8AanVflb0TACzFCwxNBjMM= =wcL/ -----END PGP SIGNATURE----- --MnLPg7ZWsaic7Fhd--
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