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--- check_disk_snmp.pl.org 2005-12-05 15:06:35.815047753 -0500
+++ check_disk_snmp.pl 2005-12-05 15:17:23.142768392 -0500
@@ -1,74 +1,257 @@
#!/usr/bin/perl
-# cm@financial.com 07/2002
+# ----------------------------------------------------------------------------
+# Name: check_disk_snmp.pl
+# Version: 1.1
+# Description: This script will check the disk space usage using SNMP for
+# both Unix and Windows hosts. The warning and critical values
+# can be specified using ratios (default) or free bytes.
+# ----------------------------------------------------------------------------
+# ChangeLog:
+#
+# July, 2002: cm@financial.com
+# -Original release
+#
+# Oct 14, 2005: Alex Burger <alex_b@users.sourceforge.net>
+# - Added support for SNMP version 1 and 2
+# - Added support for checking free bytes instead of only usage ratio
+# - Added support for selecting a device by specifying a substring of the
+# device description such as c:, d: etc.
+# - Added support for hostname:port
+# ----------------------------------------------------------------------------
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+# ----------------------------------------------------------------------------
use strict;
use Net::SNMP;
use Getopt::Std;
+my ($warn_bytes, $critical_bytes);
my %opts =(
- u => 'nobody', # snmp user
- l => 'authNoPriv', # snmp security level
- a => 'MD5', # snmp authentication protocol
- A => 'nopass', # authentication protocol pass phrase.
- x => 'DES', # privacy protocol
+ u => 'nobody', # snmp user (v3) or snmp community string (v1/2c)
+ l => 'authNoPriv', # snmp security level (v3)
+ a => 'MD5', # snmp authentication protocol (v3)
+ A => 'nopass', # authentication protocol pass phrase. (v3)
+ x => 'DES', # privacy protocol (v3)
m => 'localhost', # host
- d => 1, # devicenumber
- w => 70, # warnratio
- c => 85, # critical ratio
+ d => 1, # devicenumber
+ w => 70, # usage warnratio or bytes free
+ c => 85, # usage critical ratio or bytes free
+ v => 3,
+ t => 'ratio', # ratio or bytes
h => 0,
- );
+ );
-getopts('m:u:l:a:A:x:d:w:c:h',\%opts);
+getopts('m:u:l:a:A:x:d:w:c:v:t:h',\%opts);
if ( $opts{'h'} ) {
- print "Usage: $0 [ -u <username> ] [ -l <snmp security level>] [ -a <snmp authentication protocol> ] [ -A <authentication protocol pass phrase> ] [ -x <snmp privacy protocol> ] [ -m <hostname>] [ -d <devicenumber> ] [ -w <warning ratio> ] [ -c <critical ratio ]\n";
+ print "Usage: $0 [ -v <snmp version (3)> ]\n";
+ print " [ -u <username or community name> ] [ -l <snmp security level>]\n";
+ print " [ -a <snmp authentication protocol> ]\n";
+ print " [ -A <authentication protocol pass phrase> ]\n";
+ print " [ -x <snmp privacy protocol> ] [ -m <hostname>]\n";
+ print " [ -d <devicenumber or description> ] [ -w <warning ratio or bytes free> ]\n";
+ print " [ -c <critical ratio or bytes free> ] [ -t <(ratio)|bytes> ]\n\n";
+ print "SNMP V3 example using ratio for device number 2:\n";
+ print "$0 -u nobody -l authPriv -a MD5 -A nopass -x DES \\\n";
+ print " -m server1 -d 2 -w 70 -c 85\n\n";
+ print "SNMP V1 example using ratio for device number 2:\n";
+ print "$0 -v 1 -u public -m server1 -d 2 -w 70 -c 85\n\n";
+ print "SNMP V1 example using bytes for device number 2\n";
+ print "$0 -v 1 -u public -m server1 -d 2 -w 10Gb -c 900Mb \\\n";
+ print " -t bytes\n\n";
+ print "SNMP V1 example using bytes free for device description that contains 'c:'\n";
+ print "$0 -v 1 -u public -m server1 -d 'c:' -w 10Gb -c 900Mb \\\n";
+ print " -t bytes\n\n";
+ print "Note: The device list can be retreived using Net-SNMP's snmpwalk:\n";
+ print " snmpwalk -v 1 -c public server01 .1.3.6.1.2.1.25.2.3.1\n\n";
exit 1;
}
-if ($opts{'w'} >= $opts{'c'}) {
- print "Errorratio must be higher then Warnratio!\n";
- exit 1;
+if ($opts{'t'} eq "ratio") {
+ if ($opts{'w'} >= $opts{'c'}) {
+ print "Errorratio must be higher then Warnratio!\n";
+ exit 3;
+ }
+}
+else {
+ # For 'bytes' mode, allow user to specify size using k, M, G or T
+ ($warn_bytes, $critical_bytes) = ($opts{'w'}, $opts{'c'});
+
+ if ($warn_bytes =~ /(.*)T/i) {
+ $warn_bytes = $1 * 1099511627776; # 1024 * 1024 * 1024 * 1024
+ }
+ elsif ($warn_bytes =~ /(.*)G.*/i) {
+ $warn_bytes = $1 * 1073741824; # 1024 * 1024 * 1024
+ }
+ elsif ($warn_bytes =~ /(.*)M.*/i) {
+ $warn_bytes = $1 * 1048576; # 1024 * 1024
+ }
+ elsif ($warn_bytes =~ /(.*)k.*/i) {
+ $warn_bytes = $1 * 1024;
+ }
+
+ if ($critical_bytes =~ /(.*)T/i) {
+ $critical_bytes = $1 * 1099511627776; # 1024 * 1024 * 1024 * 1024
+ }
+ elsif ($critical_bytes =~ /(.*)G.*/i) {
+ $critical_bytes = $1 * 1073741824; # 1024 * 1024 * 1024
+ }
+ elsif ($critical_bytes =~ /(.*)M.*/i) {
+ $critical_bytes = $1 * 1048576; # 1024 * 1024
+ }
+ elsif ($critical_bytes =~ /(.*)k.*/i) {
+ $critical_bytes = $1 * 1024;
+ }
+
+ if ($warn_bytes <= $critical_bytes) {
+ print "Critical bytes free must be lower then Warning bytes free!\n";
+ exit 3;
+ }
}
-my ($session, $error) = Net::SNMP->session(
- -hostname => $opts{'m'},
- -nonblocking => 0x0,
- -username => $opts{'u'},
- -authpassword => $opts{'A'},
- -authprotocol => $opts{'a'},
- -version => '3',
- );
+# Allow hostname:port for -m
+my $hostname = $opts{'m'};
+my $port = 161; # Default to port 161
+if ($hostname =~ /(.*):(.*)/) {
+ $hostname = $1;
+ $port = $2;
+}
+
+my $session;
+my $error;
+if ($opts{'v'} == 3) {
+ ($session, $error) = Net::SNMP->session(
+ -hostname => $hostname,
+ -port => $port,
+ -nonblocking => 0x0,
+ -username => $opts{'u'},
+ -authpassword => $opts{'A'},
+ -authprotocol => $opts{'a'},
+ -version => '3',
+ );
+}
+else {
+ ($session, $error) = Net::SNMP->session(
+ -hostname => $hostname,
+ -port => $port,
+ -nonblocking => 0x0,
+ -community => $opts{'u'},
+ -version => $opts{'v'},
+ );
+}
if ($@) {
print "SNMP-Error occured";
- exit 1;
+ exit 3;
}
my $result=undef;
+my $device_id = $opts{'d'};
+
+if ($device_id =~ /^(\D+)$/) {
+ # Non numeric device. Search for matching description in all drives.
+ # If we don't find it, set device number to 999.
+ #print "non numeric device: $1\n\n";
+
+ my $i=1;
+ $device_id = 999;
+ while (1) {
+ my $deviceName=".1.3.6.1.2.1.25.2.3.1.3.$i"; # HOST-RESOURCES-MIB::hrStorageDescr
+
+ my $result = $session->get_request(
+ -varbindlist => [$deviceName]
+ );
+
+ if (!defined($result)) {
+ $session->close;
+ last;
+ }
+
+ if ($result->{$deviceName} =~ /$opts{'d'}/i) {
+ #print "Found matching device: $result->{$deviceName}\n";
+ $device_id = $i;
+ last;
+ }
+ $i++;
+ }
+}
-my $deviceSize=".1.3.6.1.2.1.25.2.3.1.5.$opts{'d'}";
-my $deviceUsed=".1.3.6.1.2.1.25.2.3.1.6.$opts{'d'}";
-my $deviceName=".1.3.6.1.2.1.25.2.3.1.3.$opts{'d'}";
-my @OID=($deviceSize, $deviceUsed, $deviceName);
-$result = $session->get_request(
+my $deviceUnits=".1.3.6.1.2.1.25.2.3.1.4.$device_id"; # HOST-RESOURCES-MIB::hrStorageAllocationUnits
+my $deviceSize=".1.3.6.1.2.1.25.2.3.1.5.$device_id"; # HOST-RESOURCES-MIB::hrStorageSize
+my $deviceUsed=".1.3.6.1.2.1.25.2.3.1.6.$device_id"; # HOST-RESOURCES-MIB::hrStorageUsed
+my $deviceName=".1.3.6.1.2.1.25.2.3.1.3.$device_id"; # HOST-RESOURCES-MIB::hrStorageDescr
+my @OID=($deviceUnits, $deviceSize, $deviceUsed, $deviceName);
+my $result = $session->get_request(
-varbindlist => \@OID,
);
if (!defined($result)) {
printf("ERROR: %s.\n", $session->error);
$session->close;
- exit 1;
+ exit 3;
}
-my $ratio=$result->{$deviceUsed}*100/$result->{$deviceSize};
+if ($opts{'t'} eq "ratio") {
+ my $ratio=$result->{$deviceUsed}*100/$result->{$deviceSize};
-if ($ratio > $opts{'c'}){
- printf("CRITICAL: %s usage %.2f%%\n", $result->{$deviceName}, $ratio);
- exit 2;
+ if ($ratio > $opts{'c'}){
+ printf("CRITICAL: %s usage %.2f%%\n", $result->{$deviceName}, $ratio);
+ exit 2;
+ }
+ if ($ratio > $opts{'w'}){
+ printf("WARNING: %s usage %.2f%%\n", $result->{$deviceName}, $ratio);
+ exit 1;
+ }
+
+ printf("OK: %s usage %.2f%%\n", $result->{$deviceName}, $ratio);
+ exit 0;
}
-if ($ratio > $opts{'w'}){
- printf("WARNING: %s usage %.2f%%\n", $result->{$deviceName}, $ratio);
- exit 1;
+else {
+ #print "Bytes...\n";
+ # Calculate actual size in bytes
+ my $b_deviceSize = $result->{$deviceSize} * $result->{$deviceUnits};
+ my $b_deviceUsed = $result->{$deviceUsed} * $result->{$deviceUnits};
+ my $b_free = $b_deviceSize - $b_deviceUsed;
+ my $b_free_units;
+
+ if ($b_free > 1099511627776) {
+ $b_free_units = (int ($b_free / 1099511627776 * 100) / 100);
+ $b_free_units .= "Tb";
+ }
+ elsif ($b_free > 1073741824) {
+ $b_free_units = (int ($b_free / 1073741824 * 100) / 100);
+ $b_free_units .= "Gb";
+ }
+ elsif ($b_free > 1048576) {
+ $b_free_units = (int ($b_free / 1048576 * 100) / 100);
+ $b_free_units .= "Mb";
+ }
+ elsif ($b_free > 1024) {
+ $b_free_units = (int ($b_free / 1024 * 100) / 100);
+ $b_free_units .= "kb";
+ }
+
+ if ($b_free < $critical_bytes){
+ printf("CRITICAL: %s free: %s\n", $result->{$deviceName}, $b_free_units);
+ exit 2;
+ }
+ if ($b_free < $warn_bytes){
+ printf("WARNING: %s free: %s\n", $result->{$deviceName}, $b_free_units);
+ exit 1;
+ }
+
+ printf("OK: %s free: %s\n", $result->{$deviceName}, $b_free_units);
+ exit 0;
}
-printf("OK: %s usage %.2f%%\n", $result->{$deviceName}, $ratio);
-exit 0;
|
