It is possible, eg for reasons of space, the migRavenDatabase and the path for the CSV files to another disk as well as to another computer. It is also possible to change the port 7474 for the database.
These changes of the location of the database and the CSV files as well as the change of the port number are made via parameters in the configuration files. For program installations, the configuration files are overwritten, causing your entries to be lost.
Please document your entries and take them after a program installation of migRaven or the database again.