Patricio Also have a look at http://developer.osdl.org/dev/openais. This is an implementation of the SA Forum APIs for high availability and also virtual synchrony group messaging exported through an EVS API. I'd also suggest having a look at lists.osdl.org. The clustersig mailing list has some discussion of various clustering technologies taking place. Those archives list more projects which you might find of interest. Thanks -steve On Mon, 2005-02-21 at 12:01, Patricio Bruna V wrote: > what are the diferences between linux-ha and the redhat-cluster project? > or they complement each other? > > how openssi play here?