Date: Thu, 1 Aug 2013 14:31:11 -0600 From: "Kenneth D. Merry" <ken@freebsd.org> To: Dan Langille <dan@langille.org> Cc: freebsd-scsi@freebsd.org Subject: Re: ahc0 cannot see attached devices Message-ID: <20130801203111.GA15203@nargothrond.kdm.org> In-Reply-To: <11DCA597-E79A-4834-9CC9-EBE1AADE99D3@langille.org> References: <11DCA597-E79A-4834-9CC9-EBE1AADE99D3@langille.org>
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On Thu, Aug 01, 2013 at 15:48:13 -0400, Dan Langille wrote: > I am in the process of moving a tape library from one server to another. > > The old server is running FreeBSD 8.4-RELEASE and using: > > ahc0: <Adaptec 2944 Ultra SCSI adapter> port 0xa800-0xa8ff mem 0xfb7df000-0xfb7dffff irq 20 at device 5.0 on pci1 > > > The new server is running FreeBSD 9.1-RELEASE-p4 and using: > > ahc0: <Adaptec 2940B Ultra2 SCSI adapter> port 0xe800-0xe8ff mem 0xfebdf000-0xfebdffff irq 21 at device 3.0 on pci4 > IIRC, the 2944 is a HVD (High Voltage Differential) card. The 2940 is a single ended or LVD card. You can't connect HVD SCSI devices to a non-HVD card. > > While the new server boots, I don't see an Adaptec card BIOS prompt / mention pass by on the console. Is this the first problem to solve? That is somewhat curious, but what you really need is an HVD card in your new server. > If I detach the tape library and attach it to the old server, I do see the expect results (the following paste is missing non-tape related results): > > <QUANTUM DLT8000 0250> at scbus12 target 4 lun 0 (sa1,pass12) > <OVERLAND LXB 0524> at scbus12 target 6 lun 0 (pass14,ch1) Ken -- Kenneth Merry ken@FreeBSD.ORG
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