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RE: Clustered XFS?

To: "Craig Tierney" <ctierney@xxxxxxxx>
Subject: RE: Clustered XFS?
From: "N. Richard Solis" <nrsolis@xxxxxxx>
Date: Thu, 5 Dec 2002 12:54:30 -0500
Cc: "'Ray Muno '" <muno@xxxxxxxxxxx>, "'Steve Lord '" <lord@xxxxxxx>, <linux-xfs@xxxxxxxxxxx>
Importance: Normal
In-reply-to: <20021205174104.GB16809@xxxxxxxx>
Sender: linux-xfs-bounce@xxxxxxxxxxx
Sounds more like a Clustered NFS solution to me?  Would I be on target with
that one?

-----Original Message-----
From: Craig Tierney [mailto:ctierney@xxxxxxxx]
Sent: Thursday, December 05, 2002 12:41 PM
To: N. Richard Solis
Cc: 'Ray Muno '; 'Steve Lord '; linux-xfs@xxxxxxxxxxx
Subject: Re: Clustered XFS?


The client provides the interface so that when a user does a read
or write, it translates the commands.  The server takes care of the layout
and locking (if supported).  Right now you can have a linux box access
the shared filesystem, but you still need an Irix box to take care of
the metadata and locking.

I have not worked with CXFS, so I might have exact terminology wrong
but I think I have the idea right.

Craig

On Thu, Dec 05, 2002 at 12:22:31PM -0500, N. Richard Solis wrote:
> Client?  Server?  Please correct me if I'm wrong but should there be a
> distinction?  My understanding of CXFS was that there were enhancements
made
> to XFS to cupport concurrent access to a storage pool via a SAN.  To do
> this, you'd need locking/recovery, and some way to ensure that metadata
> changes were visible to all the servers that had the same filesystem
> mounted.  Where does a client fit into all of this?
>
>
> -----Original Message-----
> From: linux-xfs-bounce@xxxxxxxxxxx
> [mailto:linux-xfs-bounce@xxxxxxxxxxx]On Behalf Of Tierney, Craig
> Sent: Thursday, December 05, 2002 11:59 AM
> To: 'Ray Muno '; 'Steve Lord '
> Cc: 'N. Richard Solis '; 'linux-xfs@xxxxxxxxxxx '
> Subject: RE: Clustered XFS?
>
>
>
> SGI demoed the linux client at SC2002.  The server though is still not
> ready.  I think the person I talked to said 'in 6 months' but I could
> be off there.
>
> Craig
> -----Original Message-----
> From: Ray Muno
> To: Steve Lord
> Cc: N. Richard Solis; linux-xfs@xxxxxxxxxxx
> Sent: 12/5/02 12:13 PM
> Subject: Re: Clustered XFS?
>
> The promise of a Linux client has been out there as long as CXFS has
> been
> around as far as I recall.  When is it going to materialize?
>
> It has seemed strange to me that SGI can Support Solaris and Windows NT
> with this environment but Linux support has never been made available.
>
>
> On Thu, Dec 05, 2002 at 10:50:47AM -0600, Steve Lord wrote:
> > On Thu, 2002-12-05 at 10:43, N. Richard Solis wrote:
> > > Is anyone working on adding clustering/SAN support to XFS on Linux?
> > >
> > > I was looking at the GFS software from Sistina and the OpenGFS
> project. I'm
> > > wondering if it's possible to merge the codebases of XFS and OpenGFS
> to
> > > provide the clustering functionality on XFS.  Am I crazy?
> >
> > Go look for CXFS on SGI's home page. There will be something available
> > for Linux, but it will not be open source, and what parts of it are
> > available for hardware other than SGI's is under discussion.
> >
> > Steve
> >
> > --
> >
> > Steve Lord                                      voice: +1-651-683-3511
> > Principal Engineer, Filesystem Software         email: lord@xxxxxxx
> >
> ========================================================================
> =====
>
>  Ray Muno
> http://www.aem.umn.edu/people/staff/muno
>  University of Minnesota                          e-mail:
> muno@xxxxxxxxxxx
>  Aerospace Engineering and Mechanics               Phone:     (612)
> 625-9531
>  110 Union St. S.E.                                FAX:     (612)
> 626-1558
>  Minneapolis, Mn 55455
>
> ========================================================================
> =====
>
>
>
>
>
>
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>
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>
>
>

--
Craig Tierney (ctierney@xxxxxxxx)


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