Ah, yes - I see how that would make sense.
How do I stop using it, do I just delete the filesystem and uninstall the plugin or will that make me lose stuff? Or do I have to relocate my shares via the web GUI and any other directories I have created via ssh onto one of the two original file systems (1 per 500GB disk), then delete the union filesystem one and finally uninstall the plugin?
Thanks,
Nick.