[9174] in linux-scsi channel archive
Re: [1] aha-2940 [2] hw config question
daemon@ATHENA.MIT.EDU (Eddie Williams)
Wed Jul 12 15:30:13 2000
Message-Id: <200007121921.PAA01989@aslan.sc.steeleye.com>
To: linux-scsi@vger.rutgers.edu
In-Reply-To: Message from "Kenn Humborg" <kenn@bluetree.ie>
of "Wed, 12 Jul 2000 20:11:08 BST." <NBBBIGEGHIGMPCNKHCECIEFNDLAA.kenn@bluetree.ie>
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Date: Wed, 12 Jul 2000 15:21:56 -0400
From: Eddie Williams <Eddie.Williams@SteelEye.com>
Just don't forget that the termination is on the cards in different PC's.
When you power one off you will need to be careful that the termination is not
lost. On some adapters the termination is controlled by BIOS, i.e. no power,
no termination. Often they have jumpers that can be set to force termination.
We wont even talk about what happens if you have to remove the cable to switch
SCSI cards.
Eddie
> > Another question is on how to connect two scsi
> > cards to the same device. We want to have two
> > servers look at the same drive. One will mount the
> > drive as read only and the other rw. Can we simply
> > plug the two servers to the same drive? assuming
> > that we make sure that the scsi ids of the cards
> > are not the same?? So we will have the following
> > configuration?
>
> It's legal. I'm currently doing this with a PC,
> with an Advansys ABP3925, a VAXstation 3100 and
> a bunch of DEC disks, DEC CDROM and a DEC tape drive.
>
> Works fine.
>
> Later,
> Kenn
>
>
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