1 #!/bin/sh -e

     2 

     3 ME=$(basename $0)

     4 echo $ME

     5 NAME='LVMTHIN'

     6 E=3

     7 INFO=

     8 PERFDATA=

     9 

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

    11 

    12 cleanup() {

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

    14 }

    15 

    16 nagiosexit() {

    17     local STATUS='UNKNOWN'

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

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

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

    21     fi

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

    23     exit $E

    24 }

    25 

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

    27 

    28 die() {

    29     INFO="$@"

    30     exit 3

    31 }

    32 

    33 parse_lvs() {

    34     results=$1

    35     label=$2

    36     while read vg lv u; do

    37         addinfo=

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

    39             E=2

    40             addinfo='yes'

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

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

    43             addinfo='yes'

    44         fi 

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

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

    47     done <$results

    48 }

    49 

    50 W='80.00'

    51 C='90.00'

    52 T=

    53 P=

    54 

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

    56   case $opt in

    57     h|\?)

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

    59         ;;

    60     m)

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

    62         ;;

    63     c)

    64         C="$OPTARG"

    65         ;;

    66     p)

    67         P="$P $OPTARG"

    68         ;;

    69     t)

    70         T=$T $OPTARG

    71         ;;

    72     w)

    73         W=$OPTARG

    74         ;;

    75   esac

    76 done

    77 shift $((OPTIND-1))

    78 

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

    80 lvs --noheadings -S 'segtype=thin-pool' -o vg_name,lv_name,metadata_percent $P >$lvsresults; parse_lvs $lvsresults '(meta)'

    81 

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

    83 exit $E

    84 

    85 : <<EOP

    86 

    87 =encoding utf8

    88 

    89 =pod

    90 

    91 =head1 NAME

    92 

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

    94 

    95 =head1 SYNOPSIS

    96 

    97 check_lvmthin [-t volume] [-p volume]

    98 

    99 check_lvmthin -h|-?|-m

   100 

   101 =head1 DESCRIPTION

   102 

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

   104 

   105 =head1 OPTIONS

   106 

   107 =over

   108 

   109 =item B<-h|-?>

   110 

   111 Display help.

   112 

   113 =item B<-m>

   114 

   115 Display man page.

   116 

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

   118 

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

   120 

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

   122 

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

   124 

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

   126 

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

   128 

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

   130 

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

   132 

   133 =back

   134 

   135 I<thinlv> and I<poollv> should be given as names understood by lvs. thresholds should be given in decimal notation with 2 positions after the decimal point.

   136 

   137 =head1 EXAMPLE

   138 

   139 check_lvmthin -w 76.54 -t vg/lv

   140 

   141 =head1 AUTHOR

   142 

   143 Matthias Förste <foerste@schlittermann.de>

   144 

   145 =cut

   146 

   147 EOP