Recently, I bought Plextor M5 Pro with hardware full-disk AES-256 encryption. Installed it in my laptop, where I have no HDD BIOS password set. From what I read around it seems that the encryption is invisible for the OS and the HDD BIOS password is useless if my laptop get stolen. The AES-256 encryption keys are stored on the drive itself.
What I would like to know is how to configure the built-in encryption. How to make sure my data is protected?
The OS, although irrelevant in this case, is Ubuntu 12.04, 64-bit. The laptop is HP Compaq nc4400. The BIOS has master password set, but no HDD one.
man hdparmwill yield some results. I am not sure but there are two parameters mentioned there: One is
--security-unlock PWDand the other
--security-set-pass PWD. Also bear in mind that by trusting the AES in your drive you trust the company which made the product. With a modern AES_NI enabled intel cpu you might at a slight expense be able to have a maybe more trustworthy protection. Of course all depends on the value of your data :)