hi,
if you have plan to add VDP to production as new implementation I would suggest to consider VMware's recent announcement. VMware announced the End Of Availability (EOA) for vSphere Data Protection. vSphere 6.5 is the last release to include vSphere Data Protection and future vSphere releases will no longer include this product.
please refer this article for more details.
https://blogs.vmware.com/virtualblocks/2017/04/05/vsphere-data-protection-end-availability/
As a result of that customer feedback and new direction, we are announcing the End Of Availability (EOA) for vSphere Data Protection. vSphere 6.5 is the last release to include vSphere Data Protection and future vSphere releases will no longer include this product.