Questions about Failsafe internal architecture

Hi,

My company is pondering the use of Linux Failsafe as a clustering
solution for an application HA cluster ranging in size from 4 nodes to
30 nodes. 

The documentation available describes quite clearly the failover schemes
and functionalities, but I could not get a good picture of the internal
architecture (CHAOS?), especially in respect to the group services
implementation and API available, and the cluster database.

Some specific questions I have are:

Is the group services (gcd) usable for our own clustering applications ?
Does it support network partitions like some other GCS solutions ? 

Is the group services scalable ? I understood that at least in the
beginning it was point-to-point based and not multicast - has that
changed ? Is there work 
in progress on that area - maybe something we can help achieve ? 

Is the cluster DB available for use in our own applications, both as a
parameters database and as an operational repository of information used
by various processes ? 


Any pointers or answers to information beyond whats available in the
mailing list or on the project's site would be appreciated.



Thanks,

Yuval Yeret
Clustering Engineer
www.exastore.com