stopping the server, renaming the folder and starting the server again should work fine (except that you will have to adapt the init.d scripts (if you use them) to reflect the new location of the binary). The license is bound to the hostname / mac address, not the folder. Note that you might have to modify your session file location, depending on where you have set it in the server settings.
Normally it should be sufficient to change the session folder to prevent out-of-disk errors, by the way, because it's the part that grows the most. Best regards,
Thank you Peter for the answer. Actually I have to keep the files in different filesystem (so cannot rename the folder as they reside now in different file system). So is that OK to stop the server, move all the files, modify the path in DT start-up files & start the server?