[3921] in linux-scsi channel archive
RE: questions about external SCSI
daemon@ATHENA.MIT.EDU (CAMPBELL, BARRIE B)
Thu May 14 11:33:05 1998
From: "CAMPBELL, BARRIE B " <BCC035232@acad.sunybroome.edu>
To: linux-admin@vger.rutgers.edu, linux-scsi@vger.rutgers.edu,
"'ulisses@pusa.eleinf.uv.es'" <ulisses@pusa.eleinf.uv.es>
Date: Thu, 14 May 1998 10:29:19 -0400
Somewhere I read that you could connect two SCSI controllers from
different machines
to a common bus. You set the ID's of the cards to be the highest
devices on the chain,
and then give the devices unique ID's as well
EG.
NT SCSI card id 14
Linux aic1 id 13
CDR id 10
DAT id 9
this would allow both machines to use the two devices.
this assumes that the two machines are close enough to cable
termination and cabling would be important.
anyone else heard anything about this
anyway
TE
Barrie B. Campbell
bcc035232@acad.sunybroome.edu
> ----------
> From: Ulisses Alonso
> Reply To: ulisses@pusa.eleinf.uv.es
> Sent: Sunday, May 10, 1998 12:53 PM
> To: linux-admin@vger.rutgers.edu; linux-scsi@vger.rutgers.edu
> Subject: questions about external SCSI
>
> Hello all,
>
> Hello I'm quite new to SCSI, and I have yet some doubts (I have
> resolved
> others by looking the excelent SCSI howto and SCSI faq)...
>
> The setup: two onboard aic7880 (adaptec 2940UW), one(adapter 0) being
> used with 2 internal HDs and 1 internal CDROM, the other(adapter 1)
> has
> no devices attached (yet)...
>
> Hopefully the other controller will have an external DAT drive and an
> external CD-ReWriter, this devices will be shared with a NT UnServer
> 4.0
> computer...
>
> and the questions are...
>
> 1) Can I add on the fly (while system is running) devices to "adapter
> 1"
> if this adapter has no other devices?
>
> 2) Is this possible with other devices attached but no running?
>
> (I think these things can be done with DPT's adapters, from the
> "storage
> manager" utility with the quiet "SCSI bus" option)
>
> 3) How I can tell Linux to scan the "adapter 1"'s SCSI bus to search
> devices?
>
>
>
> Any comment/suggestion will be greatly appreciated
>
> Thanks in advance
>
>
> Ulisses
>
> PD: please if you read this from linux-scsi@ CC: your reply to me
> directly
> since I'm not subscribed to that mailing-list...
> ----------------------------------------------------------------------
> -------
> "Computers are useless. They can only give answers." Pablo
> Picasso
>
>
>
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