Nagios监控SSD健康的脚本

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　　生产中使用了SSD磁盘，使用smartctl -a /dev/sdb可以查看到该磁盘的各项值，我们可以根据这些Value和Worst等于或小于thresh时候就要注意了，下面上脚本:

• #!/usr/bin/perl
  
• 
  
• =head
  
• check ssd infomation
  
• 
  
• usage: add "nagios  ALL=(root)      NOPASSWD: /usr/sbin/smartctl" to /etc/sudoers file;
  
• =cut
  
• 
  
• use strict;
  
• use warnings;
  
• use Data::Dumper;
  
• use Getopt::Long;
  
• 
  
• my ($result,$device,$h,$debug);
  
• my ($start_time,$use_time) = (time,0.00);;
  
• my %ssd_attribute = (   5   =>  "Reallocated_Sector_Ct",
  
•                         184 =>  "End_to_End_Error_Detection_Count",
  
•                         225 =>  "Raw_Read_Error_Rate",
  
•                         232 =>  "Available_Reserver_Space",
  
•                         233 =>  "Media_Wearout_Indicator",
  
•                         9   =>  "Power_On_Hours",
  
•                     );
  
• 
  
• $result = GetOptions ("device=s" => \$device,
  
•                       "debug"    => \$debug);
  
• 
  
• $device ||= 'sdb';
  
• $debug ||=0;
  
• 
  
• $h->{$device}->{output} = "";
  
• $h->{$device}->{perfdata} = "";
  
• $h->{$device}->{status} = 0;
  
• $h->{$device}->{total_info} = `sudo /usr/sbin/smartctl -a /dev/$device 2>&1`;
  
• if ( $h->{$device}->{total_info} =~ m{===\s+START\s+OF\s+INFORMATION\s+SECTION\s+===(.*)===\s+START\s+OF\s+READ\s+SMART\s+DATA\s+SECTION\s+===\s+SMART\s+overall-health\s+self-assessment\s+test\s+result:\s+(\w+)[\d\D]+Vendor\s+Specific\s+SMART\s+Attributes\s+with\s+Thresholds([\d\D]+)SMART\s+Error\s+Log\s+Version:\s+(\d+)}is) {
  
•     $h->{$device}->{info_section} = $1;
  
•     $h->{$device}->{smart_test_result} = $2;
  
•     $h->{$device}->{healt_result} = $3;
  
•     print "************************************** get $device healt info sta **************************************\n" if $debug;
  
•     foreach my $line (split /\n/,$h->{$device}->{healt_result}) {
  
•         #if ($line =~ m{(\d+)\s+([^\s]+)\s+([\dx]+)\s+(\d+)\s+(\d+)\s+(\d+)\s+(\w+)\s+(\w+)\s+([^\s]+)\s+(\d+)}i) {
  
•         if ($line =~ m{(\d+)\s+([^\s]+)\s+([^\s]+)\s+([^\s]+)\s+([^\s]+)\s+([^\s]+)\s+([^\s]+)\s+([^\s]+)\s+([^\s]+)\s+([^\s]+)}i) {
  
•             print "ID:$1\tATTRIBUTE_NAME:$2\tFLAG:$3\tVALUE:$4\tWORST:$5\tTHRESH:$6\tTYPE:$7\tUPDATED:$8\tWHEN_FAILED:$9\tRAW_VALUE:$10\n" if $debug;
  
•             $h->{$device}->{healt}->{$1}->{id} = $1;
  
•             $h->{$device}->{healt}->{$1}->{attribute_name} = $2;
  
•             $h->{$device}->{healt}->{$1}->{flag} = $3;
  
•             $h->{$device}->{healt}->{$1}->{value} = $4;
  
•             $h->{$device}->{healt}->{$1}->{worst} = $5;
  
•             $h->{$device}->{healt}->{$1}->{thresh} = $6;
  
•             $h->{$device}->{healt}->{$1}->{type} = $7;
  
•             $h->{$device}->{healt}->{$1}->{updated} = $8;
  
•             $h->{$device}->{healt}->{$1}->{when_failed} = $9;
  
•             $h->{$device}->{healt}->{$1}->{raw_value} = $10;
  
•         }
  
•     }
  
•     print "************************************** get $device healt info end **************************************\n" if $debug;
  
•     $h->{$device}->{smart_error_log_version} = $4;
  
•     $h->{$device}->{match} = 1;
  
• } else {
  
•     $h->{$device}->{match} = 0;
  
• }
  
• 
  
• print "runging..... `sudo /usr/sbin/smartctl -a /dev/$device 2>&1`\n" if $debug;
  
• print "\n\n-------------------------------- Dumper \$h sta --------------------------------\n" if $debug;
  
• print Dumper $h if $debug;
  
• print "-------------------------------- Dumper \$h end --------------------------------\n\n" if $debug;
  
• 
  
• $use_time = sprintf("%0.2f",time - $start_time);
  
• if ( (exists $h->{$device}->{match} && $h->{$device}->{match} == 0) ) {
  
•     print "CRITICAL - smartctl get $device total info fail|status=1 time=$use_time\n";
  
•     exit (2);
  
• } elsif ( ! exists $h->{$device}->{healt} ) {
  
•     print "WARNING - smartctl get $device healt info fail|status=1 time=$use_time\n";
  
•     exit (1);
  
• } else {
  
•     while ( (my ($id,$id_hash)) = (each %{$h->{$device}->{healt}} ) ) {
  
•         if ( !exists $ssd_attribute{$id}) {
  
•             print "not exists \$ssd_attribute{\$id},now next\n" if $debug;
  
•             next;
  
•         }
  
•         print "----------------------------- loop \$h->{\$device}->{healt} hash -----------------------------\n" if $debug;
  
•         print $h->{$device}->{healt}->{$id}->{worst} . "\t" if $debug;
  
•         print $h->{$device}->{healt}->{$id}->{value} . "\t" if $debug;
  
•         print $h->{$device}->{healt}->{$id}->{thresh} . "\n" if $debug;
  
•         if ($h->{$device}->{healt}->{$id}->{value} {$device}->{healt}->{$id}->{thresh}){
  
•             $h->{$device}->{output} .= "CRITICAL - $device " if ($h->{$device}->{output} eq "");
  
•             $h->{$device}->{output} .= "id:$id attribute_name:" . $ssd_attribute{$id} . " value:" . $h->{$device}->{healt}->{$id}->{value} . " ";
  
•             $h->{$device}->{status} = 2;
  
•             print 'value