WD Scorpio ML160M
Product Features
2679-701205-A00
RELEASED 1/16/09 (WD CONFIDENTIAL)
21
3.13.1
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.
When the master password is set, the drive does
not
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.
3.13.2
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.
3.14
Automatic Acoustic Management (AAM)
The AAM feature allows the host to select the acoustic level of the hard drive. When quiet
operation is essential, the drive may be set to operate in the Acoustic Mode to minimize the
hard drive’s sound level.
The Performance Mode results in slightly higher acoustic levels while optimizing the
performance of the drive. The Set Features command is used to set the AAM level.
