[Linux-cluster] Re: gfs on FC6 and ddraid

[Lon Hohberger]

On Thu, 2007-01-25 at 11:07 +0530, Ashish Varman wrote:
> Anyone ?
> 
> Ashish Varman wrote:
> 
> > Hello all
> >
> > A few follow-up questions have popped up after my previous problem got 
> > solved
> >
> > 1. What would be the correct way to use gfs (not gfs2) on FC6.  Binary 
> > installation (where do I get the rpms?) or source installation (which 
> > tag to check out?)
> >
> > 2. Since software raid is not cluster aware, ddraid seemed a much 
> > needed answer to storage node failure.  However, I was unable to build 
> > it.  The tarballs mentioned in the README are nowhere to be found and 
> > the kernel version on FC6 is different from those mentioned in it.  
> > Also, the build fails due to not finding the file "../dm-ddraid.h".  
> > This too is nowhere to be found :(.  Any pointers?
> >
> > 3. Besides ddraid, is there any commercial product that can manage 
> > cluster-aware software raid?

There are at least two open source projects DRBD (0.8.x/unstable;
0.7.x/stable does not support multiple writers IIRC) and cluster
mirroring + GNBD which will provide multiple-writer-RAID1.  Both are
still in development.

-- Lon