GEtting enough SCSI devices is a problem with only 5 or 6 PCI slots. If you
use a dual or 3-channel adapter, some of the problems will go away, though.
I've not yet figured out how to make the NT box happy with the AHA3985, but it
has 3 narrow channels, to which I can hopefully attach all my old <10GB Narrow
SCSI drives. That will accomodate 21 of them. Just for cosmetic reasons, I'd
like ot have at least one old half-height SCSI drive more to fill the one
empty exposed-front bay in that box. Right now it isn't too bad with the
empty half-height (a blockout panel fits the empty space) bay.
Dick
----- Original Message -----
From: "Sellam Ismail" <foo(a)siconic.com>
To: <classiccmp(a)classiccmp.org>
Sent: Monday, February 11, 2002 3:44 AM
Subject: Re: SCSI Bus Problem?
On Mon, 11 Feb 2002, Jerome Fine wrote:
Sellam - this one is racked in a tower box as
well with TEN 5 1/4"
half height drive bays - is that what you are using? I can't begin
to imagine TEN 5 1/4" FULL HEIGHT drive bays, but if that
is what you really meant, then I guess this box is only half the size.
No, I have 10 half-height 5.25" drive bays. 10 full height would actually
be 20 half-height, which would be insane :)
> I have been able to do the following with a single internal SCSI cable
that
is terminated
via an active external terminator (#1 configuration):
SCSI hard drive #0 FAT32 - ID=0
SCSI hard drive #1 FAT32 - ID=1
SCSI hard drive #2 FAT32 - ID=2
SCSI Iomega Zip Drive - ID=4
SCSI CDROM Drive #0 - ID=5
SCSI CDROM Drive #1 - ID=6
It all boots and work fine under W98.
I'm going to use SCSI Wide so I can get up to 15 devices on the chain.
Hint: If I attempt to boot with the same
configuration as #2 (i.e. with
the 3 Sony drives attached via the external cable) but now with the
3 Sony drives turned off and the 3 SCSI hard drives turned on, I also
can't boot - i.e. if I want to be able to switch between the Sony drives
and the SCSI hard drives, I must boot with the Sony drives powered
on and the SCSI hard drives powered off - and the SCSI CDROM
drives removed from the SCSI internal cable.
Probably has something to do with termination on the various combination
of devices. Even devices that are not powered up can still supply
termination as far as I know.
Sellam Ismail Vintage Computer
Festival
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