1 #!/bin/sh -e

     2 

     3 ME=$(basename $0)

     4 NAME='LVMTHIN'

     5 E=3

     6 INFO=

     7 PERFDATA=

     8 

     9 lvsresults=$(mktemp /tmp/$ME.XXX)

    10 

    11 cleanup() {

    12     [ -n "$lvsresults" ] && rm $lvsresults;

    13 }

    14 

    15 nagiosexit() {

    16     local STATUS='UNKNOWN'

    17     if [ $E = '2' ]; then STATUS='CRITICAL'

    18     elif [ $E = '1' ]; then STATUS='WARNING'

    19     elif [ $E = '0' ]; then STATUS='OK'

    20     fi

    21     echo "$NAME $STATUS${INFO:+: ${INFO}}${PERFDATA:+|$PERFDATA}"

    22     exit $E

    23 }

    24 

    25 trap 'trap - EXIT; cleanup; nagiosexit $E' INT QUIT TERM EXIT

    26 

    27 die() {

    28     INFO="$@"

    29     exit 3

    30 }

    31 

    32 parse_lvs() {

    33     results=$1

    34     label=$2

    35     local id=

    36     if [ ! -s "$results" ]; then

    37         id=$(id -u)

    38         die "No volumes found (effective user ID: $id)"

    39     fi

    40     while read vg lv u; do

    41         [ -n "$vg" -a -n "$lv" -a -n "$u" ] || die "Can't parse results"

    42         addinfo=

    43         if [ "$u" '>' "$C" ]; then

    44             E=2

    45             addinfo='yes'

    46         elif [ "$u" '>' "$W" ]; then

    47             [ $E != '2' ] && E=1

    48             addinfo='yes'

    49         fi 

    50         [ -n "$addinfo" ] && INFO="${INFO:+${INFO}; }$vg/$lv$label $u%"

    51         PERFDATA="${PERFDATA:+${PERFDATA} }$vg/$lv$label=$u%;$W;$C"

    52     done <$results

    53 }

    54 

    55 W='80.00'

    56 C='90.00'

    57 T=

    58 P=

    59 

    60 while getopts "hm?c:p:t:w:" opt; do

    61   case $opt in

    62     h|\?)

    63         cleanup; exec pod2usage -verbose 1 -exit 0 $0

    64         ;;

    65     m)

    66         cleanup; exec pod2usage -verbose 3 -exit 0 $0

    67         ;;

    68     c)

    69         C="$OPTARG"

    70         ;;

    71     p)

    72         P="$P $OPTARG"

    73         ;;

    74     t)

    75         T=$T $OPTARG

    76         ;;

    77     w)

    78         W=$OPTARG

    79         ;;

    80   esac

    81 done

    82 shift $((OPTIND-1))

    83 

    84 lvs --noheadings -S 'segtype=thin||segtype=thin-pool' -o vg_name,lv_name,data_percent $T $P >$lvsresults; parse_lvs $lvsresults

    85 [ -n "$T" -a -z "$P" ] || lvs --noheadings -S 'segtype=thin-pool' -o vg_name,lv_name,metadata_percent $P >$lvsresults; parse_lvs $lvsresults '(meta)'

    86 

    87 [ $E = '3' ] && E=0

    88 exit $E

    89 

    90 : <<EOP

    91 

    92 =encoding utf8

    93 

    94 =pod

    95 

    96 =head1 NAME

    97 

    98 check_lvmthin - check usage of thin provisioned logical volumes (lvm)

    99 

   100 =head1 SYNOPSIS

   101 

   102 check_lvmthin [-t volume] [-p volume]

   103 

   104 check_lvmthin -h|-?|-m

   105 

   106 =head1 DESCRIPTION

   107 

   108 This script checks the usage of thin provisioned logical volumes.

   109 

   110 =head1 OPTIONS

   111 

   112 =over

   113 

   114 =item B<-h|-?>

   115 

   116 Display help.

   117 

   118 =item B<-m>

   119 

   120 Display man page.

   121 

   122 =item B<-c> I<threshold>

   123 

   124 Exit with status 'CRITICAL' if any checked volume uses more than I<threshold> percent of its size.

   125 

   126 =item B<-t> I<thinlv>

   127 

   128 check usage of thin provisioned logical volume I<thinlv>.

   129 

   130 =item B<-p> I<poollv>

   131 

   132 check data and metadata usage of pool volume I<poollv>.

   133 

   134 =item B<-w> I<threshold>

   135 

   136 Exit with status 'WARNING' if any checked volume uses more than I<threshold> percent of its size.

   137 

   138 =back

   139 

   140 I<thinlv> and I<poollv> should be given as names understood by lvs. If both are omitted, then data usage for all thinlv and poollv and metadata usage for all poollv is checked. Thresholds should be given in decimal notation with 2 positions after the decimal point.

   141 

   142 =head1 EXAMPLE

   143 

   144 check_lvmthin -w 76.54 -t vg/lv

   145 

   146 =head1 AUTHOR

   147 

   148 Matthias Förste <foerste@schlittermann.de>

   149 

   150 The lastest version is available at L<https://ssl.schlittermann.de/hg/ius/nagios/nagios-plugin-lvmthin/>

   151 

   152 =cut

   153 

   154 EOP