Vmover will not process a Network Attach Storage (NAS) device using either the /system or /volume switches, and the following error occur:
FileSystem 32 (Error) The process cannot access the file because it is being used by another process. Cannot get volume '\\?\z:\' information (GetVolumeInformation).
Where "z:" is the mapped drive to the NAS device.
This is cause by another device that was placed between the machine running vmover and the NAS device.
Please remove any "proxy" devices that exist between the vmover machine and the NAS. This will allow vmover to process the NAS successfully.
In this particular case, the NAS was an EMC "Celerra", and the "proxy" device was an EMC "Rainfinity".