During the installation you have the possibility to choose the location where you would like to install the H2 Database.
In case you are not satisfied with the installed location you can always decide to move the Datebase. But there are some steps that you have to be taken care of.
First of all you have to stop the custo diagnostic server. In case you do not know how to do this, see for a an instruction in this VIDEO
Now the custo diagnostic server is stopped, it is save to move the H2 Database.
It is strongly recommended that the NEW location of the Database is a local drive and NOT an network drive.
In our example we move the H2 Database from drive C:\diagserverdata to D:\diagserverdata