If you lose the drive, Mitsubishi will have another one for you with all of the OS and extras on it (or thru Mazak if you wish). You just need to back up all your parameters, ana make copies of the version and option pages. If the drive crashes, it usually takes the HR113 card with it (which comes with a new drive now). Parameters can be backed up thru the I/O or the ethernet (Windows).
And I'm not sure what you mean by "ass memory" in your other post unless "backing up" is what you're talking about,,,,
It's just a part..... cutter still goes round and round....