Hi,
there are several events which you could audit.
Besides the already known events for mkrole, chrole and rmrole
ROLE_Create
ROLE_Change
ROLE_Remove
there are some new ones - referring to the new API functions, e.g. setroles(), sec_getrolebyid() and similar.
PROC_SetRoles
SEC_GetRoleById
SEC_GetRoleByNm
SEC_RoleIdToNm
SEC_RoleNmToId
Besides that auditing does not differ between RBAC-enabled and non RBAC-enabled systems.
As for logging - there is /var/adm/rolelog, and most of RBAC is syslog aware (facilities auth|security).
wmp