With the physical raw device mapping (pRDM) mount operation, you can mount snapshots directly on VMs that do not have dedicated Fibre Channel (FC) adapters, without using a physical computer as a mount proxy computer.
As part of pRDM mount operations, the snapshot is mapped on the ESXi host, and then made available on the VM.
For a list of supported snapshot engines and agents, see pRDM Mount Operation.