Stan,
 
     Did you try to use the SCSI A/B Switch?  I have found several
nice
models in the "Black Box" catalog that have varying degrees of data
loss
features.  We are also looking to put the SCSI Mag Tape Drive on it's
own
I/O Channel.  My thoughts are to make sure the drive is not in use on
the
first HP3000, down the LDev (possible powering it off???), flip the
A/B
switch, (power up, if needed), and then up the LDev on the second
HP3000.
 
Thanx,
   Jon Backus
   AB&C Group
 
 ----------
From: Stan Sieler
To: Backuj
Cc: HP-3000 Systems Discussion
Subject: Re: SCSI A/B Switch
Date: Thursday, September 12, 1996 2:06PM
 
From: Stan Sieler
Date: Thu, Sep 12, 1996 2:06 PM
Subject: Re: SCSI A/B Switch
To: Backuj
Cc: HP-3000 Systems Discussion
Jon asks:
>
>      Is it possible to put a mag tape drive with a SCSI interface
on
> two different HP3000s with some sort of A/B switch at the same
time?
 
Possible?  Yes.
 
Advisable?  Probably not.  I bought a SCSI A/B switch from Granite
Digital (in the 510 area code), and the product manual advised
against
using it while *either* computer was turned on!
 
 --
Stan Sieler
[log in to unmask]
 
http://www.allegro.com/sieler.html
 
 ----------
Received: from bart.denkart.com by portia.fabrik.com
        with SMTP (Fabrik F05.4-000)
        id [log in to unmask] ; Thu, 12 Sep 1996 14:08:55
-0700
Received: (from sieler@localhost) by bart.denkart.com (8.6.12/8.6.12)
id
OAA12798; Thu, 12 Sep 1996 14:06:02 -0700
From: Stan Sieler <[log in to unmask]>
Message-Id: <[log in to unmask]>
Subject: Re: SCSI A/B Switch
To: [log in to unmask]
Date: Thu, 12 Sep 1996 14:06:01 -0700 (PDT)
Cc: [log in to unmask]
In-Reply-To:  <[log in to unmask]> from "Backuj" at Sep
11, 96
03:37:00 pm
X-Mailer: ELM [version 2.4 PL24]
MIME-Version: 1.0
Content-Type: text/plain; charset=US-ASCII
Content-Transfer-Encoding: 7bit
Content-Length: 508
 
 ----------