Anshul,
When you provision a VDB (virtual database) you get an NFS or ISCSI mountpoint on a target server,. With a set of private pointers to a shared compressed and de-duplicated copy of your source database, potentially adultered by hook scripts and masking jobs. Your private pointers take up a tiny fraction of the original database size. In effect you share the data file blocks with any other VDB provisioned from the same dSource. You can only access those data files through the Delphix Engine. It looks, smells, feels and tastes like a physical database and anything connected to it won’t be able to tell. But it’s not a physical database. When you hit the V2P button you effectively physically transport the data to the target machine file system that you point at. Those datafiles can be accessed outside the Delphix Engine as a physical database and you lose all the magical properties of a VDB. Namely bookmarking, branching, sharing, rewinding, refreshing, minuscule size and lightning fast portability.
You have a lot to learn and wonder at, but we are glad you are here and hopefully so will you be! Welcome to the fine magic of Delphix!