Ocfs2 devel - Jul 2004 - FYI: RedHat open-sourced GFS/DLM/cluster stuff last week

Hi all,

If you haven't heard about it already, I thought folks on the list might
be interested to know that RH open-sourced (GPL) a whole bunch of stuff
that had been Sistina's commercial software offering for shared/cluster
filesystem (GFS) and related support.

The biggest surprise for me was that it includes a "redesigned from the
ground up" distributed lock manager (DLM) modeled after the same
VaxCluster/VMS DLM that inspired OpenDLM.  It also includes the g-lock
layer that I was talking about a week or two ago, so you can plug in
different lock managers and perform operations at specific times during
the lifetime of a specific lock type.

There's some good reading about the whole GFS/DLM/cluster thing at:

http://people.redhat.com/~teigland/sca.pdf

The cluster project page:

http://sources.redhat.com/cluster/

And the specific GFS project page:

http://sources.redhat.com/cluster/gfs/

CVS in the project pages contains stuff for 2.6.7.  Source for 2.4 GFS
is at:

ftp://ftp.redhat.com/pub/redhat/linux/enterprise/3/en/RHGFS/i386/SRPMS/

although I haven't been successful in accessing that, yet.  Daniel
Phillips (RedHat) said that doesn't contain the latest goodies
(including DLM IIRC).

-- Ben --

Opinions are mine, not Intel's

the stuff for rhel3 is still msotly the old stuff 

yeah we um have good access to redhat stuff, but good for the folks not
in our group, on this list.

Wim

On Fri, Jul 02, 2004 at 02:25:34PM -0700, Cahill, Ben M
wrote:
> Hi all,
> 
> If you haven't heard about it already, I thought folks on the list
might
> be interested to know that RH open-sourced (GPL) a whole bunch of stuff
> that had been Sistina's commercial software offering for shared/cluster
> filesystem (GFS) and related support.
> 
> The biggest surprise for me was that it includes a "redesigned from
the
> ground up" distributed lock manager (DLM) modeled after the same
> VaxCluster/VMS DLM that inspired OpenDLM.  It also includes the g-lock
> layer that I was talking about a week or two ago, so you can plug in
> different lock managers and perform operations at specific times during
> the lifetime of a specific lock type.
> 
> There's some good reading about the whole GFS/DLM/cluster thing at:
> 
> http://people.redhat.com/~teigland/sca.pdf
> 
> The cluster project page:
> 
> http://sources.redhat.com/cluster/
> 
> And the specific GFS project page:
> 
> http://sources.redhat.com/cluster/gfs/
> 
> CVS in the project pages contains stuff for 2.6.7.  Source for 2.4 GFS
> is at:
> 
> ftp://ftp.redhat.com/pub/redhat/linux/enterprise/3/en/RHGFS/i386/SRPMS/
> 
> although I haven't been successful in accessing that, yet.  Daniel
> Phillips (RedHat) said that doesn't contain the latest goodies
> (including DLM IIRC).
> 
> -- Ben --
> 
> Opinions are mine, not Intel's 
> 
> _______________________________________________
> Ocfs2-devel mailing list
> Ocfs2-devel@oss.oracle.com
> http://oss.oracle.com/mailman/listinfo/ocfs2-devel

oh - it does not change our commitment to ocfs btw. we're not going to
drop ours or reduce efforts on it. just fyi :)

On Fri, Jul 02, 2004 at 02:25:34PM -0700, Cahill, Ben M
wrote:
> Hi all,
> 
> If you haven't heard about it already, I thought folks on the list
might
> be interested to know that RH open-sourced (GPL) a whole bunch of stuff
> that had been Sistina's commercial software offering for shared/cluster
> filesystem (GFS) and related support.
> 
> The biggest surprise for me was that it includes a "redesigned from
the
> ground up" distributed lock manager (DLM) modeled after the same
> VaxCluster/VMS DLM that inspired OpenDLM.  It also includes the g-lock
> layer that I was talking about a week or two ago, so you can plug in
> different lock managers and perform operations at specific times during
> the lifetime of a specific lock type.
> 
> There's some good reading about the whole GFS/DLM/cluster thing at:
> 
> http://people.redhat.com/~teigland/sca.pdf
> 
> The cluster project page:
> 
> http://sources.redhat.com/cluster/
> 
> And the specific GFS project page:
> 
> http://sources.redhat.com/cluster/gfs/
> 
> CVS in the project pages contains stuff for 2.6.7.  Source for 2.4 GFS
> is at:
> 
> ftp://ftp.redhat.com/pub/redhat/linux/enterprise/3/en/RHGFS/i386/SRPMS/
> 
> although I haven't been successful in accessing that, yet.  Daniel
> Phillips (RedHat) said that doesn't contain the latest goodies
> (including DLM IIRC).
> 
> -- Ben --
> 
> Opinions are mine, not Intel's 
> 
> _______________________________________________
> Ocfs2-devel mailing list
> Ocfs2-devel@oss.oracle.com
> http://oss.oracle.com/mailman/listinfo/ocfs2-devel