[4894] in linux-scsi channel archive
Re: dual-attached disk
daemon@ATHENA.MIT.EDU (dougo@walthers.com)
Thu Oct 15 01:21:48 1998
Date: Wed, 14 Oct 1998 10:23:27 -0500
From: dougo@walthers.com
To: LINUX-SCSI@vger.rutgers.edu
X-VMS-To: LINUX-SCSI@VGER.RUTGERS.EDU
jbs@quiotix.com wrote:
>thoth@purplefrog.com wrote:
>
>> I have never heard of anyone attempting simultaneous access to the disks. I
>> wouldn't be surprised if it were done in a research situation, but the
>> arbitration would be a pain in the ass, code-wise.
>
>I think VMS can do this.
Yes, this is how clustering is handled for VMS, but VMS comes with
a fairly complex distributed lock manager with handles the locking
at the file system level.
Digital/Compaq does sell a SCSI hub, which is supposed to allow
multiple hosts to connect to the same storage array.
Doug Oleinik
dougo@walthers.com
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