I have passed the threshold in both integer and as percentages. Still no usable info returned by plugin. All i get is " check_disk: Warning threshold must be integer or percentage! "
define service{
use generic-service ; Name of service template to use
hostgroup_name viweb
service_description Disk usage test
is_volatile 0
check_period 24x7
max_check_attempts 4
normal_check_interval 5
retry_check_interval 1
contact_groups admins
notification_options w,u,c,r
notification_interval 960
notification_period 24x7
check_command check_nrpe!check_disk!20%!10%!/usr
}