OracleVM 3.0.3 multipath sipport for Sun Storage 6180

Hi!, I've just installed OracleVM 3.0.3 whit 6 Sun Blades X6270 servers and Sun Storage 6180 as shared disk vía fibre channel.  We face some trouble with multipath functionality, Oracle Documentation says that all Oracle arrays are supported, but there is no documentation about what parameters are needed for Sun Storage 6180 to get multipath working. So we set the following parameter on the file /etc/multipath.conf of each vmserver:

device {
        vendor            "SUN"
        product            "SUN_6180"
        hardware_handler    "1 rdac"
        path_grouping_policy    group_by_prio
        prio            rdac
        path_checker        rdac
        no_path_retry        10
}

With this parameters the multipath functionality is working o.k. but are these parameters supported by Oracle?