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#!/usr/bin/perl -w
# check_megaraid_sas Nagios plugin
# Copyright (C) 2007 Jonathan Delgado, delgado@molbio.mgh.harvard.edu
#
# 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
#
#
# Nagios plugin to monitor the status of volumes attached to a LSI Megaraid SAS
# controller, such as the Dell PERC5/i and PERC5/e. If you have any hotspares
# attached to the controller, you can specify the number you should expect to
# find with the '-s' flag.
#
# The paths for the Nagios plugins lib and MegaCli may need to me changed.
#
# Code for correct RAID level reporting contributed by Frode Nordahl, 2009/01/12.
#
# $Author: delgado $
# $Revision: #12 $ $Date: 2010/10/18 $
use strict;
use Getopt::Std;
use lib qw(/usr/lib/nagios/plugins /usr/lib64/nagios/plugins); # possible pathes to your Nagios plugins and utils.pm
use utils qw(%ERRORS);
our($opt_h, $opt_s, $opt_o, $opt_m, $opt_p);
getopts('hs:o:p:m:');
if ( $opt_h ) {
print "Usage: $0 [-s number] [-m number] [-o number]\n";
print " -s is how many hotspares are attached to the controller\n";
print " -m is the number of media errors to ignore\n";
print " -p is the predictive error count to ignore\n";
print " -o is the number of other disk errors to ignore\n";
exit;
}
#my $megaclibin = '/usr/sbin/MegaCli'; # the full path to your MegaCli binary
my $megaclibin = '/opt/MegaRAID/MegaCli/MegaCli64'; # the full path to your MegaCli binary
my $megacli = "sudo $megaclibin"; # how we actually call MegaCli
my $megapostopt = '-NoLog'; # additional options to call at the end of MegaCli arguments
my ($adapters);
my $hotspares = 0;
my $hotsparecount = 0;
my $pdbad = 0;
my $pdcount = 0;
my $mediaerrors = 0;
my $mediaallow = 0;
my $prederrors = 0;
my $predallow = 0;
my $othererrors = 0;
my $otherallow = 0;
my $result = '';
my $status = 'OK';
sub max_state ($$) {
my ($current, $compare) = @_;
if (($compare eq 'CRITICAL') || ($current eq 'CRITICAL')) {
return 'CRITICAL';
} elsif ($compare eq 'OK') {
return $current;
} elsif ($compare eq 'WARNING') {
return 'WARNING';
} elsif (($compare eq 'UNKNOWN') && ($current eq 'OK')) {
return 'UNKNOWN';
} else {
return $current;
}
}
sub exitreport ($$) {
my ($status, $message) = @_;
print STDOUT "$status: $message\n";
exit $ERRORS{$status};
}
if ( $opt_s ) {
$hotspares = $opt_s;
}
if ( $opt_m ) {
$mediaallow = $opt_m;
}
if ( $opt_p ) {
$predallow = $opt_p;
}
if ( $opt_o ) {
$otherallow = $opt_o;
}
# Some sanity checks that you actually have something where you think MegaCli is
(-e $megaclibin)
|| exitreport('UNKNOWN',"error: $megaclibin does not exist");
# Get the number of RAID controllers we have
open (ADPCOUNT, "$megacli -adpCount $megapostopt |")
|| exitreport('UNKNOWN',"error: Could not execute $megacli -adpCount $megapostopt");
while (<ADPCOUNT>) {
if ( m/Controller Count:\s*(\d+)/ ) {
$adapters = $1;
last;
}
}
close ADPCOUNT;
ADAPTER: for ( my $adp = 0; $adp < $adapters; $adp++ ) {
# Get the number of logical drives on this adapter
open (LDGETNUM, "$megacli -LdGetNum -a$adp $megapostopt |")
|| exitreport('UNKNOWN', "error: Could not execute $megacli -LdGetNum -a$adp $megapostopt");
my ($ldnum);
while (<LDGETNUM>) {
if ( m/Number of Virtual drives configured on adapter \d:\s*(\d+)/i ) {
$ldnum = $1;
last;
}
}
close LDGETNUM;
LDISK: for ( my $ld = 0; $ld < $ldnum; $ld++ ) {
# Get info on this particular logical drive
open (LDINFO, "$megacli -LdInfo -L$ld -a$adp $megapostopt |")
|| exitreport('UNKNOWN', "error: Could not execute $megacli -LdInfo -L$ld -a$adp $megapostopt ");
my ($size, $unit, $raidlevel, $ldpdcount, $state, $spandepth);
while (<LDINFO>) {
if ( m/Size\s*:\s*((\d+\.?\d*)\s*(MB|GB|TB))/ ) {
$size = $2;
$unit = $3;
# Adjust MB to GB if that's what we got
if ( $unit eq 'MB' ) {
$size = sprintf( "%.0f", ($size / 1024) );
$unit= 'GB';
}
} elsif ( m/State\s*:\s*(\w+)/ ) {
$state = $1;
if ( $state ne 'Optimal' ) {
$status = 'CRITICAL';
}
} elsif ( m/Number Of Drives\s*(per span\s*)?:\s*(\d+)/ ) {
$ldpdcount = $2;
} elsif ( m/Span Depth\s*:\s*(\d+)/ ) {
$spandepth = $1;
} elsif ( m/RAID Level\s*: Primary-(\d)/ ) {
$raidlevel = $1;
}
}
close LDINFO;
# Report correct RAID-level and number of drives in case of Span configurations
if ($ldpdcount && $spandepth > 1) {
$ldpdcount = $ldpdcount * $spandepth;
if ($raidlevel < 10) {
$raidlevel = $raidlevel . "0";
}
}
$result .= "$adp:$ld:RAID-$raidlevel:$ldpdcount drives:$size$unit:$state ";
} #LDISK
close LDINFO;
# Get info on physical disks for this adapter
open (PDLIST, "$megacli -PdList -a$adp $megapostopt |")
|| exitreport('UNKNOWN', "error: Could not execute $megacli -PdList -a$adp $megapostopt ");
my ($slotnumber,$fwstate);
PDISKS: while (<PDLIST>) {
if ( m/Slot Number\s*:\s*(\d+)/ ) {
$slotnumber = $1;
$pdcount++;
} elsif ( m/(\w+) Error Count\s*:\s*(\d+)/ ) {
if ( $1 eq 'Media') {
$mediaerrors += $2;
} else {
$othererrors += $2;
}
} elsif ( m/Predictive Failure Count\s*:\s*(\d+)/ ) {
$prederrors += $1;
} elsif ( m/Firmware state\s*:\s*(\w+)/ ) {
$fwstate = $1;
if ( $fwstate eq 'Hotspare' ) {
$hotsparecount++;
} elsif ( $fwstate eq 'Online' ) {
# Do nothing
} elsif ( $fwstate eq 'Unconfigured' ) {
# A drive not in anything, or a non drive device
$pdcount--;
} elsif ( $slotnumber != 255 ) {
$pdbad++;
$status = 'CRITICAL';
}
}
} #PDISKS
close PDLIST;
}
$result .= "Drives:$pdcount ";
# Any bad disks?
if ( $pdbad ) {
$result .= "$pdbad Bad Drives ";
}
my $errorcount = $mediaerrors + $prederrors + $othererrors;
# Were there any errors?
if ( $errorcount ) {
$result .= "($errorcount Errors) ";
if ( ( $mediaerrors > $mediaallow ) ||
( $prederrors > $predallow ) ||
( $othererrors > $otherallow ) ) {
$status = max_state($status, 'WARNING');
}
}
# Do we have as many hotspares as expected (if any)
if ( $hotspares ) {
if ( $hotsparecount < $hotspares ) {
$status = max_state($status, 'WARNING');
$result .= "Hotspare(s):$hotsparecount (of $hotspares)";
} else {
$result .= "Hotspare(s):$hotsparecount";
}
}
exitreport($status, $result);
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