There are several application log files which, if configured, can provide much guidance in determine the root cause of system failures. These logs are located in different directories depending on whether it is installed under Windows or Linux.
The log files names are:
fmgui.log
hibernate.log
opadbmgr.log
opafecdriver.log
The paths for each OS are:
Windows: C:\Users\<user_name>\AppData\Roaming\Intel\FabricManagerGUI\logs
Linux: $HOME/.Intel/FabricManagerGUI/logs
Log file names and location are configurable in the logging configuration file at C:\Users\<user_name>\AppData\Roaming\Intel\FabricManagerGUI\logconfig.xml