Cyril Bouthors <cyril_at_bouthors.org> writes:
[...]
> to know if two Coda servers can share their disk space in order to
> provide a virtually big filesystem to Coda clients ?
Yes, that works. The Servers can run on a single machine,
or be distributed across several boxes. You can have 
a mix of several volumes that are singly (aka not) replicated,
and highly available volumes that are replicated between the server.

Yours,
Steffen

Disclaimer: I never did anything fancier 
than "One Server, several laptops".