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Shared Devices with XFS

To: XFS List <linux-xfs@xxxxxxxxxxx>
Subject: Shared Devices with XFS
From: Frank Hellmann <frank@xxxxxxxxxxxxx>
Date: Thu, 27 May 2004 13:49:31 +0200
Organization: Optical Art Film- und Special-Effects GmbH
Sender: linux-xfs-bounce@xxxxxxxxxxx
User-agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.2.1) Gecko/20030225
Hi Guys!

Sorry to be a bit Off-Topic, but unfortunatly I can't test this out by myself...

I am checking out a way to speed up data-transfers between a server and a couple of clients. A fullblown SAN (CXFS etc) approach is currently not in our budget, but we already have a couple of directly attached fibre-channel diskarrays here. I will buy a FC-switch to get the arrays easily switched over to the clients to speed up things (instead of copying over network).

Now, my question: What will happen if I configure the FC-switch to route a single diskarray to all machines, mount that device read-write on the server and read-only on the clients? Will XFS allow me to do that? How propable is non-integrity data on the clients (considering that the server won't write to that device at that time anymore)? What will happen if all clients strom out to get data at the same time?

        Thanks a lot. Cheers,
Frank Hellmann          Optical Art GmbH           Waterloohain 7a
Digital Cinema          http://www.opticalart.de   22769 Hamburg
frank@xxxxxxxxxxxxx     Tel: ++49 40 5111051       Fax: ++49 40 43169199

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