When reviewing the NetVault Process Manager's "nvpmgr.log" trace file, the log indicates that there was a problem processing the 'machines.dat' list of NetVault machines, which causes the NV service to shut down almost immediately after starting up:
0 NETLOOP :05588 436 0 181148.015098 Failed to add machine 'XXXXXXX' - aborting
2 NETLOOP :05588 617 0 181148.015098 FALSE = NmgrLoadMachineInfoUDP()
0 NETLOOP :05588 625 0 181148.015098 Failed to process ../NetVault/etc/machines.dat
2 NETLOOP :05588 121 0 181148.015098 FALSE = NmgrLoadMachineInfo()
2 NETLOOP :05588 127 0 181148.015098 FALSE = NmgrInitialize()
1 NETLOOP :05588 205 0 181148.015098 Failed to initialize network manager system
0 PMGRNT :05588 114 0 181148.015098 Failed to start network loop
Some portion of the '..\netvault\etc\machines.dat' file has become corrupt.
To resolve the issue, rename the old 'machines.dat' file (found in the '..\netvault\etc' directory) and delete the 'machines.dat.lck' file, after which the NetVault service should successfully start up again. Upon the startup of the Netvault services a new machines.dat file will be created.