Can I install two FSWM in a 6509, for redundancy? (like an active and passive config, not failover?)
OK, maybe bad wording. So I would have to configure failover in a similar way to, two 515 pix’s for example.
failover lan interface interface_name vlan vlan
failover interface ip failover_interface ip_address mask standby
The 6509 will not see the two modules, duplicate the configuration and have one module on and one in standby?
Correct, see this link for more details -