<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN"> <HTML> <HEAD> <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=iso-8859-1"> <META NAME="Generator" CONTENT="MS Exchange Server version 6.0.6396.0"> <TITLE>check_disk syntax question</TITLE> </HEAD> <BODY>  Hello all I am using check_disk plugin to monitor some very large file systems. I was monitoring using percentages, but this is pointless, because when you ar 99% full, you still have lots of space. so I changed to a minimum killobytes check, now i get critical messages for every disk i check, probably something obviously wrong in what im doing. Here is one of my filesystems #df -k sw017 4164728832 858727296 3306001536 21% /sw017 and here is my nrpe command command[check_sw017]=/nagios/libexec/check_disk -c 1000000 -w 1500000 -m /sw017 im trying to set it to 1.5 gb warning, and 1gb crit. but i get this error every time. DISK CRITICAL [-988965760 kB (79%) free on /sw017] is my sytax wrong???? help appreciated Stu </BODY> </HTML>