[ale] Weird SCSI Drive Compatibility Issue

[Jeff Hubbs]

I let the 2940UW controller run a verify on the drive and sure enough,
it acted as though the drive were really 31MB.  I shut down and moved
the cable from the 2940UW to the Initio card I'd put in, and its BIOS
reports 4.2GB as it should.  I'm letting the Initio card do the format
as I type to see if that makes any difference.  

I may find myself looking at needing to pick up a proper UW drive and
cable.  Still, I wish I understood what was going wrong.

I probably should point out that under the Gentoo install, I did attempt
to go ahead and fdisk the putative 31MB drive to create a partition, but
subsequent attempts to do things like mke2fs /dev/sdb1 met with failure,
as though there were no sdb1.

- Jeff

On Thu, 2003-01-16 at 08:22, Drag0n wrote:
> Possibly this drive was formated on another SCSI controller from another
> manufacturer. I have seen situations where manufacturers dont play nice
> with each other.
> 
> Does it report correctly in the scsi bios? and can you run a verify on
> the drive?
> 
> Drag0n
> dragon at atlantacon.org
> 
> On Wed, 2003-01-15 at 22:51, Jeff Hubbs wrote:
> > I recently picked up an Adaptec AHA-2940UW/B Ultra Wide card and I've
> > connected a CD-RW drive and a 4,2GB Seagate ST15230WC Fast Wide drive
> > (specs at http://www.seagate.com/support/disc/specs/scsi/st15230wc.html)
> > to the card's internal 50-pin connector in preparation for a Gentoo
> > install, booting from the aforementioned CD-RW drive.  
> > 
> > The CD-RW drive appears to work fine and the drive has worked fine
> > before connected to the machine's built-in narrow SCSI controller.  I
> > believe that I have termination all squared away and I have set the
> > AHA-2940UW/B to a max rate of 20MB/s as per the specs of the ST15230WC
> > drive.
> > 
> > The problem I'm having is that after the Gentoo CD boots and lands me at
> > a shell prompt, fdisk /dev/sdb (the ST15230WC) shows me a 32MB drive -
> > CHS = 31,64,32.  When fdisk starts, it does say "Warning:  Invalid flag
> > 0x0000 of partition table 4 will be corrected by w(rite).
> > 
> > Is this just a drive/controller mismatch that I just shouldn't have
> > attempted?  I've never had a SCSI drive situation go this weirdly
> > before.
> > 
> > - Jeff
> > 
> > 
> > 
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> > http://www.ale.org/mailman/listinfo/ale
> -- 
> Drag0n <dragon at atlantacon.org>
> @LANta.con
> 
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