{"id":4722,"date":"2017-04-13T23:27:07","date_gmt":"2017-04-14T04:27:07","guid":{"rendered":"http:\/\/cdnhost.net\/?p=4722"},"modified":"2017-04-13T23:27:07","modified_gmt":"2017-04-14T04:27:07","slug":"how-to-properly-monitor-your-dell-raid-and-physical-disks-using-vmware-esxi-5-5","status":"publish","type":"post","link":"https:\/\/cdnhost.net\/content\/how-to-properly-monitor-your-dell-raid-and-physical-disks-using-vmware-esxi-5-5\/","title":{"rendered":"How to properly monitor your Dell RAID and physical disks using VMWare ESXi 5.5"},"content":{"rendered":"

Steps are required.<\/p>\n

 <\/p>\n

1. download VMWare CLI\u00a0https:\/\/my.vmware.com\/group\/vmware\/details?downloadGroup=VCLI550&productId=352<\/p>\n

2.<\/p>\n

Download check_megaraid_sas @ http:\/\/www.techno-obscura.com\/~delgado\/code\/check_megaraid_sas<\/a>
\na change has to be made in the script to make it report correctly:<\/p>\n

on line 144, change<\/p>\n

if ( m\/Size\\s*:\\s*((\\d+\\.?\\d*)\\s*(MB|GB|TB))\/ ) {<\/p>\n

to<\/p>\n

if ( m\/^Size\\s*:\\s*((\\d+\\.?\\d*)\\s*(MB|GB|TB))\/ ) {<\/p>\n

Copy both MegaCli and check_megaraid_sas to your vmware host
\ncopy MegaCli \/usr\/bin\/
\nchmod +x check_megaraid_sas
\ncopy check_megaraid_sas \/usr\/share\/snmp\/<\/p>\n

3. test that it’s working<\/p>\n

Now check your megaraid controller from the command line-
\n\/usr\/share\/snmp\/check_megaraid_sas -s (num of spares)<\/p>\n

from a good system, you should get:
\n\/usr\/share\/snmp\/check_megaraid_sas -s 3
\nOK: 0:0:RAID-5:3 drives:271.899GB:Optimal 0:1:RAID-1:2 drives:135.899GB:Optimal 0:2:RAID-1:2 drives:135.899GB:Optimal 0:3:RAID-5:3 drives:271.899GB:Optimal 0:4:RAID-5:3 drives:271.898GB:Optimal 0:5:RAID-5:8 drives:951.794GB:Optimal Drives:24 Hotspare(s):3<\/p>\n

a system starting to have trouble:
\n\/usr\/share\/snmp\/check_megaraid_sas -s 3
\nWARNING: 0:0:RAID-5:3 drives:271.945GB:Optimal 0:1:RAID-1:2 drives:135.972GB:Optimal 0:2:RAID-1:2 drives:135.972GB:Optimal 0:3:RAID-5:3 drives:271.945GB:Optimal 0:4:RAID-5:3 drives:271.945GB:Optimal 0:5:RAID-5:8 drives:951.808GB:Optimal Drives:23 Hotspare(s):2 (of 3)<\/p>\n

(yes I know, raid5 bad bad bad, tell that to the customer who insists on it…)<\/p>\n

4.<\/p>\n

now to edit \/etc\/snmp\/snmpd.conf
\nIn the section called : Access Control
\nscroll down until you find “Third, create a view for use to let the group have rights to:<\/p>\n

you’ll need to add
\nview systemview included .1.3.6.1.4.1.6876.99999<\/p>\n

now scroll down until you find: Executable\/scripts
\nAdd in
\nexec .1.3.6.1.4.1.6876.99999.2 check_megaraid_sas \/usr\/share\/snmp\/check_megaraid_sas -s 3<\/p>\n

note, the -s shows how many active spares you have assigned! if any are missing, that’s usually a sign of a problem…<\/p>\n

now, save and restart snmpd<\/p>\n

service snmpd restart<\/p>\n

now, from nagios machine:<\/p>\n

snmpwalk -v 1 -c public <HOSTNAME or IP> .1.3.6.1.4.1.6876.99999<\/p>\n

this will walk through (and hopefully) display the output of your script. if it works, you should wind up with:<\/p>\n

SNMPv2-SMI::enterprises.6876.99999.2.1.1 = INTEGER: 1
\nSNMPv2-SMI::enterprises.6876.99999.2.2.1 = STRING: “check_megaraid_sas”
\nSNMPv2-SMI::enterprises.6876.99999.2.3.1 = STRING: “\/usr\/share\/snmp\/check_megaraid_sas -s 3”
\nSNMPv2-SMI::enterprises.6876.99999.2.100.1 = INTEGER: 0
\nSNMPv2-SMI::enterprises.6876.99999.2.101.1 = STRING: “OK: 0:0:RAID-5:3 drives:271.899GB:Optimal 0:1:RAID-1:2 drives:135.899GB:Optimal 0:2:RAID-1:2 drives:135.899GB:Optimal 0:3:RAID-5:3 drives:271.899GB:Optimal 0:4:RAID-5:3 drives:271.898GB:Optimal 0:5:RAID-5:8 drives:951.794GB:Optimal Drives:24 Hotspare(s):3”
\nSNMPv2-SMI::enterprises.6876.99999.2.102.1 = INTEGER: 0
\nSNMPv2-SMI::enterprises.6876.99999.2.103.1 = “”<\/p>\n

5.<\/p>\n

\n
\n

First part done! *whew*<\/p>\n

Now to pull this into nagios!<\/p>\n

you’ll notice from this part of the reply, that the only thing we really care about is<\/p>\n

SNMPv2-SMI::enterprises.6876.99999.2.101.1 = STRING: “OK: 0:0:RAID-5:3 drives:271.899GB:Optimal 0:1:RAID-1:2 drives:135.899GB:Optimal 0:2:RAID-1:2 drives:135.899GB:Optimal 0:3:RAID-5:3 drives:271.899GB:Optimal 0:4:RAID-5:3 drives:271.898GB:Optimal 0:5:RAID-5:8 drives:951.794GB:Optimal Drives:24 Hotspare(s):3”<\/p>\n

This is the output of your script. you’ll need to have something else to pull that in!<\/p>\n

First thing is to create the command for nagios to use:
\nI store mine in a file under \/etc\/nagios-plugins\/config\/check_megaraid_snmp.cfg
\ncat check_megaraid_snmp.cfg<\/p>\n

# ‘check_megaraid_snmp’ command definition
\ndefine command{
\ncommand_name check_megaraid_snmp
\ncommand_line \/usr\/lib\/nagios\/plugins\/check_megaraid_snmp $HOSTADDRESS
\n}<\/p>\n

save and close it.<\/p>\n

check the script for correctness by running<\/p>\n

\/usr\/sbin\/nagios3 -v \/etc\/nagios3\/nagios.cfg<\/p>\n

If you get an answer of: Things look okay – blah blah blah, then go onto the next step<\/p>\n<\/div>\n<\/div>\n

\n
\n
5<\/div>\n

Configuring Nagios, part 2 (or the wall of TL;DR)<\/h3>\n<\/div>\n
\n

The script! you’ll notice we named it check_megaraid_snmp above, so let’s create the file now
\nvi \/usr\/lib\/nagios\/plugins\/check_megaraid_snmp (or whatever flavor of editor you prefer)
\n—–
\n#!\/bin\/sh<\/p>\n

if [ $# -lt 1 ]; then
\necho “Usage: $0 <host>”
\nexit -1
\nfi<\/p>\n

HOST=$1<\/p>\n

TMPFILE=`mktemp \/tmp\/check_megaraid_snmp.XXXXXX`<\/p>\n

FOUND=`snmpget $HOST -c public -v 1 .1.3.6.1.4.1.6876.99999.2.101.1 | cut -d”\\”” -f 2 > $TMPFILE 2>&1`
\nRES=$?<\/p>\n

if [ $RES != 0 ]; then
\ncat $TMPFILE
\n\/bin\/rm -f $TMPFILE
\nexit 2
\nfi<\/p>\n

STATUS=`cat $TMPFILE | cut -d”:” -f 1`
\necho $STATUS
\nCHRS=`echo $STATUS | grep OK`
\nTESTVAL=$?
\nif [ $TESTVAL -eq 0 ]; then
\n#echo “OK!”
\nRETVAL=0
\nelse
\nCHRS=`echo $STATUS | grep WARNING`
\nTESTVAL=$?
\nif [ $TESTVAL -eq 0 ]; then
\n#echo “Warning, something’s wrong”
\nRETVAL=1
\nelse
\nCHRS=`echo $STATUS | grep CRITICAL`
\nTESTVAL=$?
\nif [ $TESTVAL -ne 0 ]; then
\n#echo “you’re screwed”
\nRETVAL=3
\nelse
\nRETVAL=2
\nfi
\nfi
\nfi<\/p>\n

#echo ‘end’
\ncat $TMPFILE
\n\/bin\/rm -f $TMPFILE
\necho $RETSTR
\n#echo $RETVAL
\nexit $RETVAL<\/p>\n

—-<\/p>\n

*whew* that’s a mouthful. save it and close. recheck nagios, then restart it<\/p>\n<\/div>\n<\/div>\n

\n
\n
6<\/div>\n

Configuring Nagios, part 3 (The end… supposedly)<\/h3>\n<\/div>\n
\n

Now for the final part! let’s add the command to your host check!<\/p>\n

Inside the host file for your vm host, add this definition:<\/p>\n

define service{
\nuse generic-service ; Name of service template to use
\nhost_name acpevmsqlhost01
\nservice_description MegaRaid status
\ncheck_command check_megaraid_snmp
\n}<\/p>\n

save, close, recheck nagios, restart<\/p>\n

Now check your nagios site for status:<\/p>\n<\/div>\n<\/div>\n

\n
\n
7<\/div>\n

Good output in Nagios<\/h3>\n<\/div>\n
\"\"<\/div>\n<\/div>\n

If this helped you, please refer people for our services! and LIKE us on facebook https:\/\/facebook.com\/cdnhost<\/p>\n

 <\/p>\n

https:\/\/cdnhost.net<\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

Steps are required.   1. download VMWare CLI\u00a0https:\/\/my.vmware.com\/group\/vmware\/details?downloadGroup=VCLI550&productId=352 2. Download check_megaraid_sas @ http:\/\/www.techno-obscura.com\/~delgado\/code\/check_megaraid_sas a change has to be made in the script to make it report correctly: on line 144, change if ( m\/Size\\s*:\\s*((\\d+\\.?\\d*)\\s*(MB|GB|TB))\/ ) { to if ( m\/^Size\\s*:\\s*((\\d+\\.?\\d*)\\s*(MB|GB|TB))\/ ) { Copy both MegaCli and check_megaraid_sas to your vmware host copy MegaCli \/usr\/bin\/ chmod […]<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-4722","post","type-post","status-publish","format-standard","hentry","category-blog","has-post-title","has-post-date","has-post-category","has-post-tag","has-post-comment","has-post-author",""],"builder_content":"","_links":{"self":[{"href":"https:\/\/cdnhost.net\/content\/wp-json\/wp\/v2\/posts\/4722","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cdnhost.net\/content\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cdnhost.net\/content\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cdnhost.net\/content\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/cdnhost.net\/content\/wp-json\/wp\/v2\/comments?post=4722"}],"version-history":[{"count":0,"href":"https:\/\/cdnhost.net\/content\/wp-json\/wp\/v2\/posts\/4722\/revisions"}],"wp:attachment":[{"href":"https:\/\/cdnhost.net\/content\/wp-json\/wp\/v2\/media?parent=4722"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cdnhost.net\/content\/wp-json\/wp\/v2\/categories?post=4722"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cdnhost.net\/content\/wp-json\/wp\/v2\/tags?post=4722"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}