70 lines
2.6 KiB
Perl
70 lines
2.6 KiB
Perl
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#!/usr/bin/perl
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##############################################################################
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# This plugin uses df to gather filesystem statistics and check the percent #
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# used of inodes. I've put a switch in here since i've got both aix and #
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# linux systems...adjust for your syntax's results. #
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# Note: the percentages passed in MUST NOT have % after them #
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# No warranty is either implied, nor expressed herein. #
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# #
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##############################################################################
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$filesystem = $ARGV[0];
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$warnpercent = $ARGV[1];
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$critpercent = $ARGV[2];
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#------Find out what kind of syntax to expect
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$systype=`uname`;
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chomp($systype);
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#------Make sure we got called with the right number of arguments
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#------you could also put a check in here to make sure critical level is
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#------greater than warning...but what the heck.
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die "Usage: check_inodes filesystem warnpercent critpercent" unless @ARGV;
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if ($#ARGV < 2) {
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die "Usage: check_inodes filesystem warnpercent critpercent";
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}#end if
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#------This gets the data from the df command
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$inputline = `df -i $filesystem|grep -v "Filesystem"`;
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#------replaces all spaces with a single :, that way we can use split
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$inputline =~ y/ /:/s;
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#------different oses give back different sets of columns from the df -i
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#------(at least mine do). This way I can use this plugin on all my hosts
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#------if neither of these work, add your own in, or if you've got one that
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#------just flat out reports something different...well...perl is your friend.
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SWITCH: {
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if ($systype eq "Linux") {
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($fs,$inodes,$iused,$ifree,$ipercent,$mntpt) = split(/:/,$inputline);
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last SWITCH;
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}#end if
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if ($systype eq "AIX") {
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($fs,$blks,$free,$percentused,$iused,$ipercent,$mntpt) = split(/:/,$inputline);
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last SWITCH;
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}#end if
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}#end switch
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#------First we check for critical, since that is, by definition and convention
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#------going to exceed the warning threshold
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$ipercent =~ y/%//ds;
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if ($ipercent > $critpercent) {
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print "CRITICAL: $filesystem inode use exceeds critical threshold $critpercent ($ipercent)";
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exit 1;
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}# end if
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#------Next we check the warning threshold
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if ($ipercent > $warnpercent) {
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print "WARNING: $filesystem inode use exceeds warning threshold $warnpercent ($ipercent)";
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exit 2;
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}# end if
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#------thanks to the magic of procedural programming, we figure if we got here,
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#------everything MUST be fine.
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print "$filesystem inode use within limits ($ipercent)";
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exit 0;
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