Date: Wed, 19 Mar 2008 00:45:56 +0100 From: Erik Trulsson <ertr1013@student.uu.se> To: "John A." <johna9999@gmail.com> Cc: freebsd-questions@freebsd.org Subject: Re: Problem with multiple scsi adapters and drive assignments Message-ID: <20080318234556.GA58899@owl.midgard.homeip.net> In-Reply-To: <1ddef2670803181537m23fee42ar5bdd61d3c51da248@mail.gmail.com> References: <1ddef2670803181537m23fee42ar5bdd61d3c51da248@mail.gmail.com>
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On Tue, Mar 18, 2008 at 06:37:30PM -0400, John A. wrote: > I've searched all over (not totally exhaustive, but close) and can't find an > answer that I thought would have come up before. Basically, I need to > change the order that the kernel assigns drive names on bootup. > > It all started out with an old Intel server board with NCR/Symbios scsi > builton. I added a QLogic QLA2100 fibre controller and everything was fine > except that it was a little slow and couldn't hold enough ram. I took > another (newer) Intel server board and put it in the case. This board has > an Adaptec AIC7896 builtin. My custom kernel didn't have the aic driver so > I took the opportunity to upgrade to 7.0 and built a new kernel. Everything > was fine until I turned on the external fibre chassis and found that my da0 > became da7. The board is in a rack-mount case so I cant put the QLA into a > different slot and the bios doesn't have any way to change irq settings on > the pci slots. > > I my mind, the logical answer is to tell FBSD to scan ahc0 before isp0. > Through all my searching through docs and the mailing list archives, I can't > find any mention of how to do this. I did find one mention of turning off > the bios on the offending scsi card (it was a system with 2 Adaptecs). Been > there, tried that, didn't work. Feel free to slap my face and call me > stupid as long as you point my to the proper info if I somehow missed it. > Here are the relevant parts of dmesg if that helps (I didn't include the > drives themselves since I can't get it boot with the external chassis turned > on): The solution is not to change the order in which things are probed, but to hard-wire which name is assigned to which disk. See the SCSI(4) manpage for information on how to do this by setting hints in /boot/device.hints. -- <Insert your favourite quote here.> Erik Trulsson ertr1013@student.uu.se
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