Thanks both for your answers.
I am using an Intel NUC as computer I have to look if there is space for a 2nd SSD drive.
The database is already 100GB, a bit afraid by the limitation of SSD, although you find some cheap 500Gb SSD now but if it should go higher than that there would be a problem afterwards.
I am thiniking also of changing device for a noise problem . So I guess it would be important to be able to migrate the database easily or I would have to rebuild it.
Z.