Zimbra server failover question

[Martin Durand <mdurand@cegep-ste-foy.qc.ca>]

We're currently planning our Zimbra installation and I have a question 
about Zimbra server failover.

We plan to spread our 10k accounts on 3 Zimbra server machines with the 
mail stores on a SAN. One solution is to have a fourth machine as a hot 
standby.

Could we use the other 2 machines as standby ?

Server A
   Master for user group A
   Failover for user group B

Server B
   Master for user group B
   Failover for user group C

Server C
   Master for user group C
   Failover for user group A

Thanks

--
_____________________________________________________________________
 Martin Durand, coordonnateur
 Service de l'infrastructure technologique
 Cégep de Sainte-Foy                 http://www.cegep-ste-foy.qc.ca
 2410, chemin Sainte-Foy             Voix : +1-418-659-6600 #4275
 Québec, QC, Canada, G1V 1T3         Fax  : +1-418-659-4563