APAN Error

[Yost, Karl]

I am getting the following error from APAN "Disk utilization: Invalid host
name 'emfs3'", in the debug file I find the following Thu Jan 15 13:43:05
EST 2004 Args: nt-disk emfs3 Disk-usage 1074192185 85 90 Could not insert ''
, '1074192185' into /usr/local/nagios/rrd/emfs3-Disk-usage.rrd

I have gone over and over this and I can't figure out where the problem is.
Below are my cfg files. Any help would be greatly appreciated.

# Service definition
define service{
        use                             generic-service         ; Name of
service template to use
        host_name                       emfs3
        service_description             Disk-usage
        is_volatile                     0
        check_period                    24x7
        max_check_attempts              3
        normal_check_interval           3
        retry_check_interval            1
        contact_groups                  nt-admins
        notification_interval           120
        check_command                   apan!nt-disk!85!90
        }

# 'check_apan' command definition
define command {
        command_name                   apan
        command_line                   /usr/local/nagios/apan/apan.sh $ARG1$
$HOSTNAME$ "$SERVICEDESC$" $TIMET$ $ARG2$ $ARG3$
        }

# 'emfs3' host definition
define host{
        use                                     generic-host            ;
Name of host template to use

        host_name                       emfs3
        alias                           Wink-2k-File-Server
        address                         10.1.1.87
        parents                         emswitch2
        check_command                   check-host-alive
        max_check_attempts              10
        notification_interval           30
        notification_period             24x7
        notification_options            d,u,r
        }

define  serviceextinfo{
        host_name               emfs3
        service_description     Disk-usage
        notes_url
/nagios/cgi-bin/apan.cgi?host=emfs3&service=Disk-usage
        icon_image              graph.png
        icon_image_alt          View graphs
        }

Apan.cfg
emfs3;Disk-usage;/usr/local/nagios/rrd/emfs3-Disk-usage.rrd;d|e;d-used:AREA
d-free:STACK e-used:AREA e-free:STACK;Disk usage;Bytes
;-l 1 -b 1024

RRD file created with (the file is there with correct r/w perms - rrdtool
create /usr/local/nagios/rrd/emfs3-Disk-usage.rrd -s 60
DS:d-used:GAUGE:300:0:U DS:d-free:GAUGE:300:0:U DS:e-used:GAUGE:300:0:U
DS:e-free:GAUGE:300:0:U RRA:AVERAGE:0.5:1:50400 RRA:AVERAGE:0.5:60:43800

Thanks,
Karl
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