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check_infortrend.pl
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#!/usr/bin/perl
#
# check_infortrend
# Nagios plugin for Infortrend RAID arrays
# James Braid <[email protected]>
#
# This plugin monitors Infortrend RAID arrays. There are a couple of different
# MIBs which Infortrend uses. This plugin should deal with both of them.
#
# Please report any bugs or missing features to me.
#
use strict;
use warnings;
use Nagios::Plugin;
use SNMP;
use Data::Dumper;
use Bit::Vector;
use Log::Log4perl qw(:easy);
use FindBin;
# FindBin doesn't work if we are running in the embedded perl
my $mib_base = $FindBin::Bin;
my $n = Nagios::Plugin->new(
version => '2.01',
shortname => "infortrend",
blurb => "check_infortrend checks Infortrend RAID arrays via SNMP",
usage => "Usage: %s -H -T -w -c",
);
$n->add_arg(
spec => "hostname|H=s",
help => "-H, --hostname=HOSTNAME. Hostname of the RAID array"
);
$n->add_arg(
spec => "debug|d",
help => "--debug, -d"
);
$n->getopts;
my $log_level = $ERROR;
$log_level = $DEBUG if $n->opts->debug;
Log::Log4perl->easy_init($log_level);
my $hostname = $n->opts->hostname;
$n->nagios_die("no hostname specified") unless $hostname;
my $status = OK;
my $message;
my $sess = SNMP::Session->new( DestHost => $hostname, Version => '2', Timeout => '500000');
$n->nagios_die("failed to initiate SNMP session") unless $sess;
# We need to switch MIBs based on firmware version
# old location of fwVersion
my $fwVersion = '.1.3.6.1.4.1.1714.1.1.1.5.0';
#my $fwVersion = '.1.3.6.1.4.1.1714.1.1.1.1.5.0';
# Set a timeout around this - $fwVersion can be returned undefined if either the raid gives the wrong
# response or no response, so we can't work out which it is. So set our own timeout faster than
# the SNMP one to pick this up. The longer SNMP timeout is useful for the later stages where
# we load a whole table
eval {
$SIG{ALRM} = sub { die "Timeout"; };
alarm(20);
$fwVersion = $sess->get($fwVersion);
#DEBUG Dumper $fwVersion;
alarm(0);
if (!defined $fwVersion) {
$n->nagios_die("$hostname is not supported by this plugin (or SNMP is taking a long time to respond)");
}
if ($fwVersion eq 'NOSUCHOBJECT') {
DEBUG "using newer MIB";
&SNMP::addMibFiles($mib_base . '/IFT_MIB_v1.11G14.mib');
} elsif ($fwVersion < 48) {
DEBUG "using older MIB";
&SNMP::addMibFiles($mib_base . '/IFT-SNMP-MIB.mib');
} else {
$n->nagios_die("unknown RAID type/firmware");
}
};
if ($@ && $@ =~ /Timeout/) {
$n->nagios_die("RAID took too long to respond - it maybe be busy in I/O");
}
# hdd table = physical devices
my $hddTable = $sess->gettable('hddTable');
DEBUG Dumper $hddTable;
# '5' => {
# 'hddSpeed' => '10',
# 'hddSlotNum' => '5',
# 'hddBlkSizeIdx' => '9',
# 'hddResvSpace' => '4094',
# 'hddPhyChlNum' => '2',
# 'hddLdId' => '40674BE0',
# 'hddSerialNum' => ' 5QD1',
# 'hddFwRevStr' => 'E ',
# 'hddSize' => '1464614912',
# 'hddStatus' => '1',
# 'hddScsiId' => '4',
# 'hddModelStr' => 'ST3750640AS ',
# 'hddDataWidth' => '0',
# 'hddLogChlNum' => '0',
# 'hddState' => '0',
# 'hddScsiLun' => '0',
# 'hddIndex' => '5'
# }
#
# DESCRIPTION "Hard disk drive status
# 0 : New Drive
# 1 : On-Line Drive
# 2 : Used Drive
# 3 : Spare Drive
# 4 : Drive Initialization in Progress
# 5 : Drive Rebuild in Progress
# 6 : Add Drive to Logical Drive in Progress
# 9 : Global Spare Drive
# 0x11 : Drive is in process of Cloning another Drive
# 0x12 : Drive is a valid Clone of another Drive
# 0x13 : Drive is in process of Copying from another Drive
# (for Copy/Replace LD Expansion function)
# 0x3f : Drive Absent
# 0x8x: SCSI Device (Type x)
# 0xfc : Missing Global Spare Drive
# 0xfd : Missing Spare Drive
# 0xfe : Missing Drive
# 0xff : Failed Drive"
#
foreach (sort keys %$hddTable) {
my $hdd = $hddTable->{$_};
my $slot = $hdd->{hddSlotNum};
my $status = $hdd->{hddStatus};
if ($status == 5 ){
$n->add_message(WARNING, "Drive in slot $slot is rebuilding");
}
elsif (
$status != 1 && # on-line
$status != 3 && # spare
$status != 4 && # initializing
$status != 9 && # global spare
$hdd->{hddSize} > 0) {
DEBUG Dumper $hdd;
$n->add_message(CRITICAL, "Drive in slot $slot is broken");
}
}
my $ldTable = $sess->gettable('ldTable');
DEBUG Dumper $ldTable;
foreach (sort keys %$ldTable) {
my $ld = $ldTable->{$_};
my $failed = $ld->{ldFailedDrvCnt};
my $id = $ld->{ldID};
my $status = $ld->{ldStatus};
my $state = $ld->{ldState};
# DESCRIPTION "Logical drive status
# BITS 0-2 : Status Code (RO):
# 0 : Good
# 1 : Rebuilding
# 2 : Initializing
# 3 : Degraded
# 4 : Dead
# 5 : Invalid
# 6 : Incomplete
# 7 : Drive Missing
# BITS 3-6 : Reserved.
# BITS 7 : Logical Drive Off-line (RW)."
# extract bits 0-2
my $bv = Bit::Vector->new_Dec(8, $status);
DEBUG Dumper $bv;
my $enum = $bv->to_Enum;
DEBUG "ld status: $enum";
my $status_bv = Bit::Vector->new(2);
$status_bv->Interval_Copy($bv, 0, 0, 3);
$status = $status_bv->to_Dec;
DEBUG "bits 0-2: $status";
if ($status != 0) {
DEBUG "ldstatus is [$status]";
if ( $status == 1 ){
$n->add_message(WARNING, "LD $id is rebuilding");
}
elsif( $status == 2 ){
$n->add_message(WARNING, "LD $id is initializing");
}
elsif( $status == 3 ){
$n->add_message(CRITICAL, "LD $id is DEGRADED");
}
else{
$n->add_message(CRITICAL, "LD $id is BROKEN");
}
}
}
# Checking for knackered redundant controllers
#For some reason the textual version doesn't work.
#Do an SNMP walk for redCtlrStatus with -O n to find this number
if ($fwVersion eq 'NOSUCHOBJECT') {
# Only works on new MIB stuff
my $controllers = $sess->get('.1.3.6.1.4.1.1714.1.1.1.6.4.0');
# 0x3F bits being set indicates a controller failure. So this test is sufficient for the moment
if(defined $controllers and $controllers > 32) {
$n->add_message(CRITICAL,"Redundant Controller failure has been detected - system has failed over");
}
DEBUG Dumper $controllers;
}
# luDev = random devices
my $luDevTable = $sess->gettable('luDevTable', noindexes => 1);
DEBUG Dumper $luDevTable;
foreach (sort keys %$luDevTable) {
my $dev = $luDevTable->{$_};
my $type = $dev->{luDevTypeCode};
my $desc = $dev->{luDevDescription};
my $status_bit = $dev->{luDevStatus};
my $bv = Bit::Vector->new_Dec(8, $status_bit);
# DEBUG Dumper $bv->to_Enum;
my $foo = $bv->to_Enum;
DEBUG "$desc - $foo";
if ($type == 1 || $type == 2) {
# psu or fan - they use the same bitmaps
$n->add_message(CRITICAL, "$desc is malfunctioning") if $bv->bit_test(0);
$n->add_message(CRITICAL, "$desc is off") if $bv->bit_test(6);
$n->add_message(CRITICAL, "$desc is missing") if $bv->bit_test(7);
}
# slot
#if ($type == 17) {
# $n->add_message(CRITICAL, "$desc is marked BAD") if $bv->bit_test(1);
#}
if ($type == 3 || $type == 5) {
# temperature and voltage
my $status_bv = Bit::Vector->new(3);
$status_bv->Interval_Copy($bv, 0, 1, 3);
my $status = $status_bv->to_Dec;
DEBUG "$desc is $status";
# temp
if ($type == 3) {
$n->add_message(CRITICAL, "$desc is too hot") if $status == 3;
$n->add_message(CRITICAL, "$desc is SUPER hot") if $status == 5;
}
# voltage
}
}
#my $allEvtTable = $sess->gettable('allEvtTable');
#DEBUG Dumper $allEvtTable;
# luntable =
($status, $message) = $n->check_messages(join => "; ");
$n->nagios_exit($status, $message);