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#!/usr/bin/perl -w
# chec_smart
# Check S.M.A.R.T. enabled disks status.
#
# This uses smartmontools to check for disk status.
# This is NOT compatible with smartsuite
# Please use smartctl --smart=on --offlineauto=on --saveauto=on /dev/something
# or similar to enable automatic data collection, and RTFM about it.
#
# this uses sudo to access the smartctl program, so please add a line in sudoers
# nagios computername = NOPASSWD:/usr/sbin/smartctl
#
# CopyLeft Roy Sigurd Karlsbakk <roy@karlsbakk.net>
# Developed under Debian/SID
# No warranties what so ever. If this toasts your PC, or your wife
# runs away with your girlfriend, or even me, don't blame me.
#
# Licenced under GPL
#
use strict;
use Getopt::Long;
my (
$s, $i, $out, $retcode, $errtxt, $exitcode,
$device, $text_mode, $exitcode_mode, $help, $verbose, $type,
);
my $smartctl = "sudo /usr/sbin/smartctl";
my $e_commandline = 0;
my $e_devopen = 0;
my $e_chksum = 0;
my $e_disk_failing = 0;
my $e_prefail = 0;
my $e_mayprefail = 0;
my $e_errlog = 0;
my $e_selftestlog = 0;
sub end {
$s = shift;
$i = shift;
if ($i == 0) {
$s = "OK: $s";
} elsif ($i == 1) {
$s = "WARNNG: $s";
} elsif ($i == 2) {
$s = "CRITICAL: $s";
} elsif ($i == 3) {
$s = "UNKNOWN: $s";
} else {
$s = "OUT OF RANGE: $s";
}
print "$s\n";
exit($i);
}
sub syntax {
$s = shift or $s = 'Unknown';
printf STDERR ("Error: $s\n") unless ($help);
printf STDERR ("Syntax: %s (-t|-e) -d <device> [-vh]\n", $0);
printf STDERR (" --text-mode -t check by parsing smartctl's output\n");
printf STDERR (" --exitcode-mode -e check smartctl's exitcode (only works on IDE)\n");
printf STDERR (" --device -d disk device to check\n");
printf STDERR (" --type -T drive type. See the -d flag in the smartctl manual\n");
printf STDERR (" --verbose -v verbose\n");
printf STDERR (" --help -h this help\n");
exit(0) if $help;
exit(3);
}
Getopt::Long::Configure('bundling');
GetOptions(
"d=s" => \$device, "device=s" => \$device,
"T=s" => \$type, "type=s" => \$type,
"t" => \$text_mode, "text-mode" => \$text_mode,
"e" => \$exitcode_mode, "exitcode-mode" => \$exitcode_mode,
"h" => \$help, "help" => \$help,
"v" => \$verbose, "verbose" => \$verbose
) || syntax("RTFM!");
syntax if ($help);
syntax("Need device to check") unless ($device);
syntax("Conflicting modes") if ($text_mode && $exitcode_mode);
syntax("Need test mode") unless ($text_mode || $exitcode_mode);
syntax("Exitcode mode only works on ATA drives") if ($exitcode_mode && ! ($device =~ /\/dev\/hd./));
if ($type) {
$type =~ s/[\r\n]*?//g;
print "type: '$type'\n" if ($verbose);
syntax("Valid --type entries include ata, scsi and 3ware,n")
unless (($type =~ /^ata$/) || ($type =~ /^scsi$/) || ($type =~ /^3ware,\d+$/));
}
if (defined($type)) {
$type = "--device=$type";
} else {
$type = "";
}
if ($text_mode) {
print "running $smartctl $type -H $device" if ($verbose);
unless (open SMARTCTL,"$smartctl $type -H $device|") {
print STDERR "Can't execute $smartctl: $!\n";
exit(3);
}
while (<SMARTCTL>) {
last if (/=== START OF READ SMART DATA SECTION ===/);
}
$out = <SMARTCTL>;
print $out;
exit(0) if ($out =~ /PASSED/);
exit(2) if ($out =~ /SAVE ALL DATA/ || $out =~ /FAILED/);
exit(3);
} elsif ($exitcode_mode) {
print "Running $smartctl $type -q silent $device\n" if ($verbose);
system("$smartctl $type -q silent $device");
$retcode = $?;
$e_commandline = 1 if ($retcode & 0x0100);
$e_devopen = 1 if ($retcode & 0x0200);
$e_chksum = 1 if ($retcode & 0x0400);
$e_disk_failing = 1 if ($retcode & 0x0800);
$e_prefail = 1 if ($retcode & 0x1000);
$e_mayprefail = 1 if ($retcode & 0x2000);
$e_errlog = 1 if ($retcode & 0x4000);
$e_selftestlog = 1 if ($retcode & 0x8000);
print "$e_commandline $e_devopen $e_chksum $e_disk_failing $e_prefail $e_mayprefail $e_errlog $e_selftestlog\n"
if ($verbose);
$exitcode = 0;
$errtxt = "";
if ($exitcode) {
if ($e_commandline) {
$errtxt .= "Commandline didn't parse, ";
$exitcode = 3 if ($exitcode == 0);
}
if ($e_devopen) {
$errtxt .= "Device could not be opened, ";
$exitcode = 3 if ($exitcode == 0);
}
if ($e_chksum) {
$errtxt .= "Checksum failure somewhere, ";
$exitcode = 1 if ($exitcode != 2);
}
if ($e_disk_failing) {
$errtxt .= "Disk is failing!, ";
$exitcode = 2;
}
if ($e_prefail) {
$errtxt .= "Disk is in prefail, ";
$exitcode = 1 if ($exitcode != 2);
}
if ($e_mayprefail) {
$errtxt .= "Disk is close to prefail. Please check manually, ";
$exitcode = 1 if ($exitcode != 2);
}
if ($e_errlog) {
$errtxt .= "The device error log contains records of errors, ";
$exitcode = 1 if ($exitcode != 2);
}
if ($e_selftestlog) {
$errtxt .= "The device self-test log contains records of errors, ";
$exitcode = 1 if ($exitcode != 2);
}
if ($exitcode == 1) {
$errtxt = "WARNNG: $errtxt";
} elsif ($exitcode == 2) {
$errtxt = "CRITICAL: $errtxt";
} else {
$errtxt = "UNKNOWN: $errtxt";
}
} else {
$errtxt = "OK";
}
print "$errtxt\n";
exit($exitcode);
} else {
print STDERR "Something's strange is going on :~|\n";
exit(3);
}
# vim:ts=4:sw=4:cindent
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