It is also not possible to remove the auto update process from the Dimensions server, although the dfs/upgrade_config.dat file may be configured to prevent the dmupgradesrv process from connecting to a database, effectively disabling it.
DMUPGRADESRV 2019/02/07 22:34:26 UTC 0.002 E P28941 T1 UpgSrv: main: Exiting due to an unexpected Dimensions exception: MDHNET4502205E Error: Failed to open file /opt/serena/dimensions/14.4/cm/dfs/registry.dat (fopen() failed with 13 Permission denied)
This issue was caused by the user choosing to disable to dmupgradesrv .exe process on the server by removing the values for the following entries in %DM_ROOT%\dfs\upgrade_config.dat: