Nagios plugin with M630

HI,

I just setup the Dell Nagios Plugin to monitor my new M630 servers. I'm running it on Debian 6, with Nagios 3.5.1. I setup racadm utility, openwsm, and all the needed requirements. 

Most of the check are okay, unless some of them are returning :

Component Information = UNKNOWN 

For example, the Dell Server Fan Status is setup like this : 

define service{
use Dell Device Component Status
host_name xxxxxx
service_description Dell Server Fan Status 
check_command check_dell_oob_server_component_snmp! "/usr/local/nagios/etc/xx/xxxxxx.cfg"! fan
}

Any idea ?

Also, is it possible to return performance data with these checks ? 

Thanks,

Davy