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  • Uiteraard wil ik ook graag de temperatuur van mijn harde schijven in de gaten houden, dit kan met de plugin: /usr/local/share/munin/plugins/hddtemp_smartctl, dit script word standaard mee geinstalleerd bij de installatie van Munin-node.
    # vi /usr/local/share/munin/plugins/hddtemp_smartctl

    Hierin stonden alleen de devices ad00 en ada00, aangezien mijn devices da0 t/m da13 heten moest ik de volgende regel aanpassen.

    Ga op zoek naar ada, en als je deze tekst ziet:
    } elsif ($^O eq 'freebsd') {
    opendir(DEV, '/dev');
    @drives = grep /^ ad[0-9]+$|^ada[0-9]+$/, readdir DEV;
    closedir(DEV);
    } elsif ($^O eq 'solaris') {
    @drives = map { s@.*/@@ ; $_ } glob '/dev/rdsk/c*t*d*s2';
    }


    En wijzig dit naar:
    } elsif ($^O eq 'freebsd') {
    opendir(DEV, '/dev');
    @drives = grep /^da[0-9]+$|ad[0-9]+$|^ada[0-9]+$/, readdir DEV;
    closedir(DEV);
    } elsif ($^O eq 'solaris') {
    @drives = map { s@.*/@@ ; $_ } glob '/dev/rdsk/c*t*d*s2';
    }

     

  • Maak dan weer een symobic link:

    # cd /usr/local/etc/munin/plugins
    # ln -s /usr/local/share/munin/plugins/hddtemp_smartctl hddtemp_smartctl

  • Herstart munin node:
    # service munin-node restart

    En je zal geconfronteerd worden met meldingen dat er onvoldoende rechten zijn in de statistieken.

  • De foutmelding over de rechten kan je oplossen door in plugins.conf aan te geven onder welke gebruiker het opgestart moet worden:

    # vi /usr/local/etc/munin/plugin-conf.d/plugins.conf

  • Ga op zoek naar: [hddtemp_smartctl] en voeg:


    user root toe:


    Sla het bestand op en herstart munin-node:
    # service munin-node restart

  • Dit is het volledige bestand van hddtemp_smartctl

    #!/usr/local/bin/perl –w
    # -*- perl -*-
    =head1 NAME
    hddtemp_smartctl - Plugin to monitor harddrive temperatures through
    SMART

    =head1 CONFIGURATION

    This plugin needs to run as root or some other user that has access to
    the harddrive devices.

    The following environment variables are used

    smartctl - path to smartctl executable
    drives - List drives to monitor. E.g. "env.drives hda hdc".
    type_$dev - device type for one drive, e.g. "env.type_sda 3ware,0"
    or more typically "env.type_sda ata" if sda is a SATA disk.
    args_$dev - additional arguments to smartctl for one drive,
    e.g. "env.args_hda -v 194,10xCelsius". Use this to make
    the plugin use the --all or -a option if your disk will
    not return its temperature when only the -A option is
    used.
    dev_$dev - monitoring device for one drive, e.g. twe0

    If the "smartctl" enviroment variable is not set the plugin will
    search your $PATH, /usr/bin, /usr/sbin, /usr/local/bin and
    /usr/local/sbin for a file called "smartctl", and use that.

    If the "drives" environment variable is not set, the plugin will
    attempt to search for drives to probe.

    =head1 MAGIC MARKERS

    #%# family=auto
    #%# capabilities=autoconf

    =head1 AUTHOR

    Copyright (c) 2005, Lutz Peter Christoph
    All rights reserved.

    =head1 LICENSE

    Redistribution and use in source and binary forms, with or without
    modification, are permitted provided that the following conditions
    are met:

    * Redistributions of source code must retain the above copyright
    notice, this list of conditions and the following disclaimer.

    * Redistributions in binary form must reproduce the above copyright
    notice, this list of conditions and the following disclaimer in
    the documentation and/or other materials provided with the
    distribution.

    * The name and aliases of Lutz Peter Christoph ("Lupe Christoph",
    "Lutz Christoph") may not be used to endorse or promote products
    derived from this software without specific prior written
    permission.

    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
    A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
    OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
    SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
    LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
    DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
    THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
    (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
    OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

    =head1 NOTES

    Note for users of RAID controllers (smartmontools currently only
    supports 3ware): you can specify the drives attached to your RAID
    controller(s) as raiddev_num (e.g. sda_0). Then you must specify the
    type like this: type_sda_0 3ware,0.

    Recent versions of the kernel driver use a separate major device
    number for monitoring purposes, like /dev/twe or /dev/twa. This
    can be put in the e.g. dev_sda environment variable, to allow the user
    to keep sda as the name of the disk.

    To avoid spinning up sleeping disks smartctl will use the –nocheck
    parameter. If this parameter isn't supported by your version of
    smartctl then hdparm will be used. Note that hdparm isn't available
    on all platforms.

    =cut

    use strict;
    use File::Spec::Functions qw(splitdir);
    use lib $ENV{'MUNIN_LIBDIR'};
    use Munin::Plugin;

    my $DEBUG = $ENV{'MUNIN_DEBUG'} || 0;

    my $smartctl;

    if (exists $ENV{smartctl}) {
    $smartctl = $ENV{smartctl};
    if (defined $ARGV[0] and $ARGV[0] eq 'autoconf') {
    if (! -e $smartctl) {
    print "no (Predefined smartctl ($smartctl) does not exist)\n";
    exit 0;
    } elsif (! -x $smartctl) {
    print "no (Predefined smartctl ($smartctl) is not executable)\n";
    exit 0;
    }
    } else {
    die "$smartctl does not exist\n" unless (-e $smartctl);
    die "$smartctl is not executable\n" unless (-x $smartctl);
    }
    } else {
    # Not defined in %ENV? Check obvious places
    my @dirs = split(':', $ENV{PATH});
    push (@dirs, qw(/usr/bin /usr/sbin /usr/local/bin /usr/local/sbin) );

    until ($smartctl or @dirs == 0) {
    my $dir = shift @dirs;
    my $path = $dir.'/smartctl';
    $smartctl = $path if -x $path;
    }
    }

    # Check version of smartctl to determine --nocheck capabilities
    my $use_nocheck = 0;
    if ($smartctl and `$smartctl --version` =~ / release (\d+\.\d+) /i) {
    $use_nocheck = $1 >= 5.37;
    warn "[DEBUG] Smartctl supports --nocheck\n" if $DEBUG;
    }

    # hdparm is used as a fallback
    my $hdparm = `which hdparm 2>/dev/null`;
    chomp $hdparm;

    my @drives;

    # Try to get a default set of drives
    if ($^O eq 'linux') {
    # On Linux, we know how to enumerate ide drives.
    my @drivesIDE;
    if (-d '/proc/ide') {
    opendir(IDE, '/proc/ide');
    @drivesIDE = grep /hd[a-z]/, readdir IDE;
    closedir(IDE);
    }

    # Look for SCSI / SATA drives in /sys
    my @drivesSCSI;
    if (-d '/sys/block/') {
    opendir(SCSI, '/sys/block/');
    @drivesSCSI = grep /sd[a-z]/, readdir SCSI;
    closedir(SCSI);
    }

    # Get list of all drives we found
    @drives=(@drivesIDE,@drivesSCSI);

    } elsif ($^O eq 'freebsd') {
    opendir(DEV, '/dev');
    @drives = grep /^da[0-9]+$|ad[0-9]+$|^ada[0-9]+$/, readdir DEV;
    closedir(DEV);
    } elsif ($^O eq 'solaris') {
    @drives = map { s@.*/@@ ; $_ } glob '/dev/rdsk/c*t*d*s2';
    }

    @drives = split ' ', $ENV{drives} if exists $ENV{drives};

    # Sort list of drives
    @drives = sort @drives;

    warn "[DEBUG] Drives: ",join(', ',@drives),"\n" if $DEBUG;

    if (defined $ARGV[0]) {
    if ($ARGV[0] eq 'autoconf') {
    if (@drives) {
    my $cmd = command_for_drive_device($drives[0],
    device_for_drive($drives[0]));
    if (`$cmd` =~ /Temperature/) {
    print "yes\n";
    } else {
    print "no (first drive not supported, configure the plugin)\n";
    }
    exit 0;
    } else {
    print "no (no drives known)\n";
    exit 0;
    }
    } elsif ($ARGV[0] eq 'config') {
    print "graph_title HDD temperature\n";
    print "graph_vlabel Degrees Celsius\n";
    print "graph_category sensors\n";
    print "graph_info This graph shows the temperature in degrees Celsius of the hard drives in the machine.\n";
    foreach (@drives) {
    my @dirs = splitdir($_);
    print clean_fieldname($_) . ".label " . $dirs[-1] . "\n";
    print clean_fieldname($_) . ".max 100\n";
    print clean_fieldname($_) . ".warning 57\n";
    print clean_fieldname($_) . ".critical 60\n";
    }
    exit 0;
    }
    }

    foreach my $drive (@drives) {
    warn "[DEBUG] Processing $drive\n" if $DEBUG;
    my $fulldev = device_for_drive($drive);

    # Fall back to using hdparm for detecting disks in stand-by only if nocheck
    # isn't supported (hdparm isn't available on all platforms).
    if (!$use_nocheck && $hdparm && $fulldev =~ /\/dev\/[sh]d?/) {
    if (`$hdparm -C $fulldev 2>/dev/null` =~ /standby/) {
    warn "[DEBUG] Drive $fulldev is in standby mode, not checking\n"
    if $DEBUG;
    next;
    }
    }
    my $cmd = command_for_drive_device($drive, $fulldev, $use_nocheck);
    warn "[DEBUG] Command for $drive is % $cmd %\n" if $DEBUG;

    my $output = `$cmd`;
    if ($? ne 0) {
    print "$drive.value U\n";
    print "$drive.extinfo Command $cmd on drive $drive failed: $?. The plugin needs to have read permission on all monitored devices.\n";
    warn "[ERROR] Command $cmd on drive $drive failed: $?. The plugin needs to have read permission on all monitored devices.\n";
    next;
    }
    if ($output =~ /Current Drive Temperature:\s*(\d+)/) {
    print "$drive.value $1\n";
    } elsif ($output =~ /^(194 Temperature_Celsius.*)/m) {
    my @F = split /\s+/, $1;
    print "$drive.value $F[9]\n";
    } elsif ($output =~ /^(231 Temperature_Celsius.*)/m) {
    my @F = split ' ', $1;
    print "$drive.value $F[9]\n";
    } else {
    print "$drive.value U\n";
    print "$drive.extinfo Temperature not detected in smartctl output\n";
    }
    }

    sub device_for_drive {
    my ($drive) = @_;
    my $dev = $drive =~ /(.*)(?:_\d+)$/ ? $1 : $drive;

    my $fulldev = '/dev/';
    $fulldev .= 'rdsk/' if $^O eq 'solaris';
    $fulldev .= exists $ENV{'dev_'.$drive} ? $ENV{'dev_'.$drive} : $dev;

    return $fulldev;
    }

    sub command_for_drive_device {
    my ($drive, $fulldev, $use_nocheck) = @_;

    my $cmd = $smartctl.' -A ';
    $cmd .= '--nocheck=standby ' if $use_nocheck;
    $cmd .= $ENV{'args_'.$drive}.' ' if exists $ENV{'args_'.$drive};
    $cmd .= '-d '.$ENV{'type_'.$drive}.' ' if exists $ENV{'type_'.$drive};
    $cmd .= $fulldev;

    }