Using check_dell_bladechassis with check_mk

This post builds off of a previous post that documented getting check_openmanage working with check_mk.

In this post we'll add check_dell_bladechassis to the mix to allow for monitoring of Dell M1000e blade chassis' (via the CMC management card).

This was done on the following system:

• CentOS 5.7 x86_64 KVM virtual machine
  
• OMD 0.50
  
• check_openmanage 3.7.3
  
• check_dell_bladechassis 1.0.0
  
• Dell M1000e chassis are queried via SNMP
  

Unless otherwise specified all paths are relative to the site owners home (ex: /opt/omd/sites/mysite) The check_openmanage code in this blog post is not necessary to get check_dell_bladechassis, I'm just including it to help tie this entry to the previous post.

1. Change users on your OMD server to the site user: $ su - mysite
   
2. Download the latest check_dell_bladechassis from http://folk.uio.no/trondham/software/check_dell_bladechassis.html to ~/tmp and extract
   
3. copy the check_dell_bladechassis script to local/lib/nagios/plugins (this defaults to $USER2$ in your commands)
   

   
   $ cp tmp/check_dell_bladechassis-1.0.0/check_dell_bladechassis local/lib/nagios/plugins/
   $ chmod +x local/lib/nagios/plugins/check_dell_bladechassis
   

4. copy the PNP4Nagios template
   

   
   $ cp tmp/check_dell_bladechassis-1.0.0/check_dell_bladechassis.php etc/pnp4nagios/templates/
   

5. Test check_dell_bladechassis to see that it can successfully query an M1000e CMC (I've inserted carriage returns in the output to make it more readable)
   

   
   local/lib/nagios/plugins/check_dell_bladechassis -H dell-m1000e-01 -p -C MySecretCommunity
   
   OK - System: 'PowerEdge M1000e', SN: 'XXXXXX', Firmware: '3.03', hardware working fine|
   'total_watt'=1500.000W;0;7928.000 'total_amp'=6.750A;0;0 'volt_ps1'=239.500V;0;0 
   'volt_ps2'=242.750V;0;0 'volt_ps3'=242.750V;0;0 'volt_ps4'=241.750V;0;0 'volt_ps5'=241.750V;0;0 
   'volt_ps6'=242.750V;0;0 'amp_ps1'=1.688A;0;0 'amp_ps2'=1.641A;0;0 'amp_ps3'=0.188A;0;0 
   'amp_ps4'=1.516A;0;0 'amp_ps5'=1.500A;0;0 'amp_ps6'=0.219A;0;0
   
   

6. Edit the main.mk file to define the command, etc... (the perfdata_format and monitoring_host I got from a previous emailer to the list, not sure if they are needed)
   

   
   all_hosts = [
    'dell-m1000e-01|snmp|m1000e|nonpub',
    'dell-r710-01|linsrv|kvm|omsa|nonpub',
    'dell-2950-01|linsrv|omsa|nonpub',
    'hp-srv-01|winsrv|smb', ]
   
   # Are you using PNP4Nagios and MRPE checks? This will make PNP
   # choose the correct template for standard Nagios checks:
   perfdata_format = "pnp"
   #set the monitoring host
   monitoring_host = "nagios"
   
   # SNMP Community
   snmp_default_community = "someCommunityRO"
   
   snmp_communities = [
     ( "MySecretCommunity", ["nonpub"], ALL_HOSTS ),
   ]
   
   extra_nagios_conf += r"""
   
   # ARG1: community string
   define command {
       command_name    check_openmanage
       command_line    $USER2$/check_openmanage -H $HOSTADDRESS$ -p -C $ARG1$
   }
   
   define command {
       command_name    check_dell_bladechassis
       command_line    $USER2$/check_dell_bladechassis -H $HOSTADDRESS$ -p -C $ARG1$
   }
   
   """
   
   legacy_checks = [
     # On all hosts with the tag 'omsa' check Dell OpenManage for status 
     # service description "Dell OMSA", process performance data
     ( ( "check_openmanage!MySecretCommunity", "Dell OMSA", True), [ "omsa" ], ALL_HOSTS ),
     # similar for m1000e
     ( ( "check_dell_bladechassis!MySecretCommunity", "Dell Blade Chassis", True), [ "m1000e" ], ALL_HOSTS ),
   
   ]
   
   

7. That should be it, reinventory your M1000e and reload
   

   
   $ check_mk -II dell-m1000e-01
   $ check_mk -O
   
   

8. The php code has a bug that can be fixed using the below patch (see the first comment for details)
   

   
   --- a/check_dell_bladechassis.php 2009-08-04 07:00:15.000000000 -0500
   +++ b/check_dell_bladechassis.php 2011-12-21 14:44:25.488132187 -0600
   @@ -41,7 +41,7 @@
     
     $opt[$count] = "--slope-mode --vertical-label \"$vlabel\" --title \"$def_title: $title\" ";
     
   -        $def[$count] .= "DEF:var$i=$rrdfile:$DS[$i]:AVERAGE " ;
   +        $def[$count] = "DEF:var$i=$rrdfile:$DS[$i]:AVERAGE " ;
            $def[$count] .= "AREA:var$i#$PWRcolor:\"$NAME[$i]\" " ;
            $def[$count] .= "LINE:var$i#000000: " ;
    
   @@ -62,7 +62,7 @@
     
     $opt[$count] = "-X0 --lower-limit 0 --slope-mode --vertical-label \"$vlabel\" --title \"$def_title: $title\" ";
     
   -        $def[$count] .= "DEF:var$i=$rrdfile:$DS[$i]:AVERAGE " ;
   +        $def[$count] = "DEF:var$i=$rrdfile:$DS[$i]:AVERAGE " ;
            $def[$count] .= "AREA:var$i#$AMPcolor:\"$NAME[$i]\" " ;
            $def[$count] .= "LINE:var$i#000000: " ;
    
   @@ -75,6 +75,7 @@
        if(preg_match('/^volt_/',$NAME[$i])){
     if ($visited_volt == 0) {
         ++$count;
   +     $def[$count] = '';
         $visited_volt = 1;
     }
     
   @@ -87,6 +88,7 @@
     
     $def[$count] .= "DEF:var$i=$rrdfile:$DS[$i]:AVERAGE " ;
     $def[$count] .= "LINE:var$i#".$colors[$v++].":\"$NAME[$i]\" " ;
   +
     $def[$count] .= "GPRINT:var$i:LAST:\"%3.2lf $UNIT[$i] last \" ";
     $def[$count] .= "GPRINT:var$i:MAX:\"%3.2lf $UNIT[$i] max \" ";
     $def[$count] .= "GPRINT:var$i:AVERAGE:\"%3.2lf $UNIT[$i] avg \\n\" ";
   @@ -96,6 +98,7 @@
        if(preg_match('/^amp_/',$NAME[$i])){
     if ($visited_amp == 0) {
         ++$count;
   +     $def[$count] = '';
         $visited_amp = 1;
     }
    
   

Hope this helps, and comments are welcome.