Hyper-V – Synthetic FibreChannel Port: Failed to start reserving resources with Error ‘Cannot create a file when that file already exists.

In case of this type of error:

‘VM’ failed to start. (Virtual machine ID C2FBAB4B-29DC-4D70-A32A-B4C4CE3F0065)

‘VM’ Synthetic FibreChannel Port: Failed to start reserving resources with Error ‘Cannot create a file when that file already exists.’ (0x800700B7). (Virtual machine ID C2FBAB4B-29DC-4D70-A32A-B4C4CE3F0065)

‘VM’: NPIV virtual port operation on virtual port (C003FF5F4A830002) failed with an error: The world wide port name already exists on the fabric. (Virtual machine ID C2FBAB4B-29DC-4D70-A32A-B4C4CE3F0065)

‘B1854B54-A335-424B-92C2-3E6DE30F0613’: NPIV virtual port operation for virtual port (C003FF5F4A830003) on physical port (10000090FA922225) failed with an error: (0x800700B7) and NPIV error: (0x00000000). (Virtual machine ID C2FBAB4B-29DC-4D70-A32A-B4C4CE3F0065)

One of the solution is restart Hyper Visor.