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Date: Tue, 9 Jan 1996 14:47:44 -0500 (EST)
From: Emil Mikhles <michles@haven.ios.com>
To: freebsd-questions@freebsd.org
Subject: Adaptec 3940W problems
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> ahc1: 3940 Wide Channel A, SCSI Id=7, aic7870, 255 SCBs
> ahc1 waiting for scsi devices to settle
> (ahc1:0:0): "SEAGATE ST15150W 0017" type 0 fixed SCSI 2
> sd0(ahc1:0:0): Direct-Access 4095MB (8388315 512 byte sectors)
> ahc2 <Adaptec 3940 SCSI host adapter> rev 3 int a irq ?? on pci1:5
> ahc: unit number (2) too high
> changing root device to sd0a

I have a 2940, which is ahc0, I believe, which my SCSI CD-ROM is 
connected two, and a 3940w. A believe a 3940 acts like two 2940's 
combined, and it detects ahc1, which is the first channel, but something 
is wierd happening to the second channel, (unit number (2) too high. I 
have another Hard disk connected to the second channel, and maybe this is 
why it is not detected.