ESXI Dell perc HDD/SDD S.M.A.R.T. check

This plugin is not for newbies and non-bash people!!!
Fine tuning for your specific hardware will be needed if you need to have 100% S.M.A.R.T. predictive monitoring.

PLUGIN DEPENDENCIES:
This script will raise a CRITICAL if the DELL PERC controller raised a SMART error for a specific HDD using its own build-in mechanism. However this a reactive method, because the failure already occurred. If you want to predict HDD/SDD failure you need to edit the script and add add your model to the DB of the script manually. You can either use smartctl to read the HDD/SDD important attributes you wish to monitor if their value is different than 0 using smartctl DB for your specific drive models:

https://github.com/mirror/smartmontools/blob/master/drivedb.h


OS DEPENDENCIES:
On the nagios host you should have ssh-client
On the ESXi servers you should have the perccli64 utility installed as described here:

https://www.dell.com/support/kbdoc/en-bg/000177280/how-to-use-the-poweredge-raid-controller-perc-command-line-interface-cli-utility-to-manage-your-raid-controller#bs_VMware

the commands.cfg part is:

# Check esxi SDDs/HDDs SMART status for a specific controller i.e. c0, c1 cN and etc:
define command{
command_name check_esxi_smart
command_line sudo $USER1$/check_smart.sh $HOSTADDRESS$ c0
}