VMware ESXi convert Thick to Thin Provisioned Drives

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Before converting the VMDK file power off the VM and remove from inventory.

ssh to the esx server that you store the VM server that needs conversion

Go to /vmfs/volumes/YourStore/YourVMlocation

and run the below command to convert the HDD

vmkfstools -i ThickHDD.vmdk ThinHDD.vmdk -d ‘thin’ -a lsilogic

When is done add the VM again on the ESX server and remove the Thickhdd.vmdk and add the new Thinhdd.vmdk

Power on the VM.