Export Emcgrab report from ESXi server.

Download emcgrab utility from below link

 https://communities.vmware.com/thread/478860?start=0&tstart=0

Extract emcgrab utility on your local computer. In my case, I have copied it on N drive.

 Go to extracted path in command prompt 

  Run below command

emcgrab -host [hostip] -user [username] -password [password] -vmsupport -outdir [logs store location]

For example: -  emcgrab -host 192.168.1.2 -user root -password ****** -vmsupport -outdir n:\EMC-ESXi-GRAB-1.3.2\report\

Then accept the licence agreement and proceed with default options

This will take little time. Once  this complete, you can check the output folder for results.