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245 lines
6.4 KiB
245 lines
6.4 KiB
#!/usr/bin/perl -w
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# check_megaraid_sas Nagios plugin
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# Copyright (C) 2007 Jonathan Delgado, delgado@molbio.mgh.harvard.edu
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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#
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#
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# Nagios plugin to monitor the status of volumes attached to a LSI Megaraid SAS
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# controller, such as the Dell PERC5/i and PERC5/e. If you have any hotspares
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# attached to the controller, you can specify the number you should expect to
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# find with the '-s' flag.
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#
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# The paths for the Nagios plugins lib and MegaCli may need to me changed.
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#
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# $Author: delgado $
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# $Revision: #3 $ $Date: 2007/06/07 $
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# Slightly modified by Daniel B. for zabbix
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# 23 Apr 2009
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use strict;
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use Getopt::Std;
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our($opt_h, $opt_s, $opt_o, $opt_m, $opt_p);
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getopts('hs:o:p:m:');
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if ( $opt_h ) {
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print "Usage: $0 [-s number] [-m number] [-o number]\n";
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print " -s is how many hotspares are attached to the controller\n";
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print " -m is the number of media errors to ignore\n";
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print " -p is the predictive error count to ignore\n";
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print " -o is the number of other disk errors to ignore\n";
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exit;
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}
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my $megacli = (-x '/opt/MegaRAID/MegaCli/MegaCli64') ?
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'/opt/MegaRAID/MegaCli/MegaCli64' : '/opt/MegaRAID/MegaCli/MegaCli';
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## Return codes for Nagios
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my %ERRORS=('OK'=>0,'WARNING'=>1,'CRITICAL'=>2,'UNKNOWN'=>3,'DEPENDENT'=>4);
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my ($adapters);
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my $hotspares = 0;
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my $hotsparecount = 0;
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my $pdbad = 0;
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my $pdcount = 0;
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my $mediaerrors = 0;
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my $mediaallow = 0;
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my $prederrors = 0;
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my $predallow = 0;
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my $othererrors = 0;
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my $otherallow = 0;
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my $result = '';
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my $status = 'OK';
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sub max_state ($$) {
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my ($current, $compare) = @_;
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if (($compare eq 'CRITICAL') || ($current eq 'CRITICAL')) {
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return 'CRITICAL';
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} elsif ($compare eq 'OK') {
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return $current;
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} elsif ($compare eq 'WARNING') {
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return 'WARNING';
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} elsif (($compare eq 'UNKNOWN') && ($current eq 'OK')) {
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return 'UNKNOWN';
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} else {
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return $current;
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}
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}
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if ( $opt_s ) {
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$hotspares = $opt_s;
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}
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if ( $opt_m ) {
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$mediaallow = $opt_m;
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}
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if ( $opt_p ) {
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$predallow = $opt_p;
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}
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if ( $opt_o ) {
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$otherallow = $opt_o;
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}
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# Get the number of RAID controllers we have
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open (ADPCOUNT, "$megacli -adpCount -NoLog |")
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|| die "error: Could not execute MegaCli -adpCount";
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while (<ADPCOUNT>) {
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if ( m/Controller Count:\s*(\d+)/ ) {
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$adapters = $1;
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last;
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}
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}
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close ADPCOUNT;
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ADAPTER: for ( my $adp = 0; $adp < $adapters; $adp++ ) {
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# Get the number of logical drives on this adapter
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open (LDGETNUM, "$megacli -LdGetNum -a$adp -NoLog |")
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|| die "error: Could not execute $megacli -LdGetNum -a$adp";
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my ($ldnum);
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while (<LDGETNUM>) {
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if ( m/Number of Virtual drives configured on adapter \d:\s*(\d+)/i ) {
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$ldnum = $1;
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last;
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}
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}
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close LDGETNUM;
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open (CFGDSPLY, "$megacli -CfgDsply -a$adp -NoLog |")
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|| die "error: Could not execute $megacli -CfgDsply -a$adp -NoLog";
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my $hba = 0;
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my $failgrouplist = 0;
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while (<CFGDSPLY>) {
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if ( m/Failed to get Disk Group list/ ) {
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$failgrouplist = 1;
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}
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if ( m/Product Name:.*(JBOD|HBA)/ ) {
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$hba = 1;
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}
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}
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close CFGDSPLY;
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# When controller is in HBA/JBOD mode, skip RAID volume checks
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unless ($hba && $failgrouplist) {
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LDISK: for ( my $ld = 0; $ld < $ldnum; $ld++ ) {
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# Get info on this particular logical drive
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open (LDINFO, "$megacli -LdInfo -L$ld -a$adp -NoLog |")
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|| die "error: Could not execute $megacli -LdInfo -L$ld -a$adp -NoLog";
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my ($size, $unit, $raidlevel, $ldpdcount, $spandepth, $state);
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while (<LDINFO>) {
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if ( m/^Size\s*:\s*(\d+(\.\d+)?)\s*(MB|GB|TB)/ ) {
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$size = $1;
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$unit = $3;
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# Adjust MB to GB if that's what we got
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if ( $unit eq 'MB' ) {
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$size = sprintf( "%.0f", ($size / 1024) );
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$unit= 'GB';
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}
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} elsif ( m/^State\s*:\s*(\w+(\s\w+)?)/ ) {
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$state = $1;
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if ( $state ne 'Optimal' ) {
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$status = 'CRITICAL';
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}
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} elsif ( m/^Number Of Drives( per span)?\s*:\s*(\d+)/ ) {
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$ldpdcount = $2;
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} elsif ( m/^Span Depth\s*:\s*(\d+)/ ) {
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$spandepth = $1;
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$ldpdcount = $ldpdcount * $spandepth;
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} elsif ( m/^RAID Level\s*:\s*Primary-(\d)/ ) {
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$raidlevel = $1;
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}
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}
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close LDINFO;
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$result .= "$adp:$ld:RAID-$raidlevel:$ldpdcount drives:$size$unit:$state ";
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} #LDISK
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close LDINFO;
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}
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# Get info on physical disks for this adapter
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open (PDLIST, "$megacli -PdList -a$adp -NoLog |")
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|| die "error: Could not execute $megacli -PdList -a$adp -NoLog";
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my ($slotnumber,$fwstate);
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PDISKS: while (<PDLIST>) {
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if ( m/Slot Number:\s*(\d+)/ ) {
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$slotnumber = $1;
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# Don't care about backplane error counts
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next if ( $slotnumber == 255 );
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$pdcount++;
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} elsif ( m/(\w+) Error Count:\s*(\d+)/ ) {
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if ( $1 eq 'Media') {
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$mediaerrors += $2;
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} else {
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$othererrors += $2;
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}
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} elsif ( m/Predictive Failure Count:\s*(\d+)/ ) {
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$prederrors += $1;
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} elsif ( m/Firmware state:\s*(\w+)/ ) {
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$fwstate = $1;
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if ( $fwstate =~ m/Hotspare/ ) {
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$hotsparecount++;
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} elsif ( $fwstate =~ m/^Online/ ) {
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# Do nothing
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} elsif ( $slotnumber != 255 ) {
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$pdbad++;
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$status = 'CRITICAL';
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}
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}
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} #PDISKS
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close PDLIST;
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}
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$result .= "Drives:$pdcount ";
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# Any bad disks?
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if ( $pdbad ) {
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$result .= "$pdbad Bad Drives ";
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}
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my $errorcount = $mediaerrors + $prederrors + $othererrors;
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# Were there any errors?
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if ( $errorcount ) {
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$result .= "($errorcount Errors) ";
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if ( ( $mediaerrors > $mediaallow ) ||
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( $prederrors > $predallow ) ||
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( $othererrors > $otherallow ) ) {
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$status = max_state($status, 'WARNING');
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}
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}
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# Do we have as many hotspares as expected (if any)
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if ( $hotspares ) {
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if ( $hotsparecount < $hotspares ) {
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$status = max_state($status, 'WARNING');
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$result .= "Hotspare(s):$hotsparecount (of $hotspares)";
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} else {
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$result .= "Hotspare(s):$hotsparecount";
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}
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}
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print STDOUT "$status: $result\n";
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exit $ERRORS{$status};
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