Re: [SLUG] Network Real-Time Hot Filesystem Replication?

[Crossfire <xfire@xxxxxxxx>]

Dave Kempe wrote:
> Crossfire wrote:
> > I want to be able to set it up so /home (and maybe other filesystems) 
> > are replicated from one to the other, in both directions, in real time 
> > so they can run in an all-hot redundant cluster.
> >
> > The environment should be mostly read-oriented, so I can live with 
> > write-latent solutions as long as they handle the race/collision 
> > gracefully (preferably by actually detecting and reporting it if they 
> > can't avoid it).
> isn't this just a description of a network filesytem... say NFS?

No.  Network Filesystems still have a distinct single storage location. 
 If that storage is taken offline, clients can only error or hang.

With a hot real-time replicated filesystem, all involved nodes would 
have a full local copy at all times and would be able to continue operation.

C.