Re: Clustered XFS?

[Craig Tierney <ctierney@hpti.com>]

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@oss.sgi.com
> [mailto:linux-xfs-bounce@oss.sgi.com]On Behalf Of Tierney, Craig
> Sent: Thursday, December 05, 2002 11:59 AM
> To: 'Ray Muno '; 'Steve Lord '
> Cc: 'N. Richard Solis '; 'linux-xfs@oss.sgi.com '
> 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@oss.sgi.com
> 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@sgi.com
> >
> ========================================================================
> =====
> 
>  Ray Muno
> http://www.aem.umn.edu/people/staff/muno
>  University of Minnesota                          e-mail:
> muno@aem.umn.edu
>  Aerospace Engineering and Mechanics               Phone:     (612)
> 625-9531
>  110 Union St. S.E.		                     FAX:     (612)
> 626-1558
>  Minneapolis, Mn 55455
> 
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-- 
Craig Tierney (ctierney@hpti.com)