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RE: [Linux-cluster] Re: RedHat SSI cluster



Hi Aneesh,

We're planning to make GFS/GNBD to work on top of TIPC in hope that will
give better performance over TCP.  Since TIPC provides socket-like APIs,
our initial thinking was to just convert socket APIs in GFS/GNBD code to
TIPC socket-like APIs. Based on what you described, making GFS/GNBD to
work on top of ICS may be a better alternative. 

Could you give me some pointers on how to make GFS/GNBD to work on ICS? 

Lin   

> -----Original Message-----
> From: linux-cluster-bounces redhat com 
> [mailto:linux-cluster-bounces redhat com] On Behalf Of Aneesh 
> Kumar K.V
> Sent: Monday, January 01, 2007 7:57 AM
> To: linux-cluster redhat com
> Subject: [Linux-cluster] Re: RedHat SSI cluster
> 
> Bob Marcan wrote:
> > Hi.
> > Are there any plans to enhance RHCS to become full SSI 
> (Single System 
> > Image) cluster?
> > Will http://www.open-sharedroot.org/ become officialy included and 
> > supported?
> > Isn't time to unite force with the http://www.openssi.org ?
> > 
> 
> 
> If you look at openssi.org code you can consider it contain 
> multiple components
> 
> a) ICS
> b) VPROC
> c) CFS
> d) Clusterwide SYSVIPC
> e) Clusterwide PID
> f) Clusterwide remote file operations
> 
> 
> I am right now done with getting ICS cleaned up for 
> 2.6.20-rc1 kernel. It provides a transport independent 
> cluster framework for writing kernel cluster services. 
> You can find the code at 
> http://git.openssi.org/~kvaneesh/gitweb.cgi?p=ci-to-linus.git;
> a=summary
> 
> 
> So what could be done which will help GFS and OCFS2 is to 
> make sure they can work on top of ICS. That also bring in an 
> advantage that GFS and OCFS2 can work using 
> TCP/Infiniband/SCTP/TIPC what ever the transport layer 
> protocol is. Once that is done next step would be to get 
> Clusterwide SYSVIPC from OpenSSI and merge it with latest 
> kernel. ClusterWide PID and clusterwide remote file operation 
> is easy to get working. What is most difficult is VPROC which 
> bring in the clusterwide proc model. Bruce Walker have a 
> paper written on a generic framework at 
> http://www.openssi.org/cgi-bin/view?page=proc-hooks.html
> 
> 
> -aneesh
> 
> 
> -aneesh 
> 
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> 


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