Security Mode; 3.14.1 Master And User Passwords; 3.14.2 Security Levels - Western Digital Scorpio ML320S-AF2 Technical Reference Manual

Product Features WD Scorpio ML320S-AF2
3.14

Security Mode

The Security Mode feature set allows the user to create a device lock password that prevents
unauthorized hard drive access even if the drive is removed from the computer.

3.14.1 Master and User Passwords

The manufacturer/dealer can set a master password using the Security Set Password command, without
enabling the device lock function. The user password should be given or changed by a system user.
Master Password Identifier is supported and set to a default value of 00FE. If a Master Password is set
via a Security Set Password Command, a valid Master Password Revision code value of 0001h – 00FEh
must be used. A Master Password Identifier of 0000h is ignored.
not
When the master password is set, the drive does enable the device lock function. When the user
password is set, the drive enables the device lock function, and the drive is locked after the next power
on reset or hard reset.

3.14.2 Security Levels

High - If High level security is set and the user password is forgotten, the master password can be used
to unlock the drive and access the data.
Maximum - If Maximum level security is set and the user password is forgotten, data access is
impossible. Only the master password with a Security Erase Unit command can unlock the drive when
the device lock function is enabled and the user password has been forgotten. When the Security Erase
Unit command is used to unlock the drive, all user data is erased.
26 RELEASED 4/7/11 (WD CONFIDENTIAL) 2679-771320-A00