you can run the required Script or command as requried
Datacenter based ,Cluster Based, or ESX based
Take putty of you esx server and run this command you will get an html file to your mail ID, in this report you will get compleate information of your VM's and other things
or you can use RV tools for compleate information of your data store its a free software install in your local system which has the same network as ESX server
I need this info from vCOPS
"'Virtual Machine List Report" is what you want. you highlight the object on the vSphere UI heirarchy, go to the reports tab, and generate this report.
it will report on every object underneath it in the hierarchy on the left.