Disk Password

There are 2 passwords in harddisk - user and master. The master password allows administrator to access the disk if user password is lost.

There are 2 operating modes. In high security mode, both user and master password can unlock the disk. In maximum security mode, the master password can unlock the disk only after the disk has been wiped.

Security is implemented using the ATA SECURITY_UNLOCK command which must be executed before any READ/WRITE ATA command. Some ATA commands are still usable without SECURITY_UNLOCK command and thus the disk may be recognizable by the system.