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contrib-munin/plugins/disk/hp_temp

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#!/usr/bin/perl -w
# Temperature read from hplog -t
# in the plugin config the user need to be set to root:
#
# [hp_temp]
# user root
use strict;
use Munin::Plugin;
my $mode = ($ARGV[0] or "print");
if ($mode eq 'autoconf')
{
if (`/sbin/hplog -t` eq '')
{
print "no (no temperature devices to monitor)\n"
}
else
{
print "yes\n"
}
exit 0;
}
if ($mode eq 'config')
{
# headers for the temperatur
print "graph_title HP Temperature sensors in Celsius\n";
print "graph_args --base 1000 -l 0\n";
print "graph_vlabel degrees Celsius\n";
print "graph_category sensors\n";
}
# threshold: ($name).critical
# ($name).warning -5% of threshold
open(HPT, "hplog -t 2>/dev/null |") || die("Cannot open hplog: $!\n");
<HPT>; # header line, skipping
while (<HPT>)
{
# we need the following locations (fixed)
# ID: 1-2
# LOCATION: 18-32
# STATUS: 34-42
# CURRENT: 43-52
# THRESHOLD: (for init only) 53-62
chomp;
if (length($_) > 1)
{
my $status = substr($_, 33, 8); # Normal, Absent, etc
$status =~ s/\s+$//g;
# if status is not Abstent, we go ahead
if ($status ne 'Absent')
{
my $id = substr($_, 0, 2);
$id =~ s/\s+//g;
my $location = substr($_, 17, 14);
# strip any trailing spaces
$location =~ s/\s+$//g;
$location .= ' '.$id;
my $temp = substr($_, 42, 9);
# post work: current extract C number only
$temp =~ /\dF\/([\d ]{3})C$/;
$temp = $1;
if ($temp)
{
$temp =~ s/\s+//g;
# create a unique name from location
# remove all . / ( ) and replace space with _
my $name = lc($location);
$name =~ s/[\.\/\(\)]//g;
# strip all trailing spaces
$name =~ s/\s+$//g;
# convert spaces left to underscore
$name =~ s/\ /_/g;
# add the ID to be 100% unique
$name .= '_'.$id;
if ($mode eq 'config')
{
# only needed here in config
my $threshold = substr($_, 52, 9);
# extract only C
$threshold =~ /\dF\/([\d ]{3})C$/;
$threshold = $1;
if ($threshold)
{
$threshold =~ s/\s+//g;
}
else
{
$threshold = 100;
}
# calc warning from threshold, 5% less
my $warning = sprintf("%.0f", $threshold * 95 / 100);
print $name.".label ".$location."\n";
print $name.".warning ".$warning."\n";
print $name.".critical ".$threshold."\n";
}
else
{
print $name.".value ".$temp."\n";
}
}
}
}
}
close(HPT);