Security Mode; Security Level; Password; Master Password Revision Code - Hitachi HTS541010G9AT00 - Travelstar 100 GB Hard Drive Specifications

Security Erase Prepare
Security Erase Unit
Security Freeze Lock
Security Disable Password

10.9.1 Security mode

The following security modes are provided:
Device Locked
Mode
Device Unlocked
Mode
Device Frozen Mode

10.9.2 Security level

The following security levels are provided:
High level security
Maximum level
security

10.9.3 Password

This function can have two types of passwords as described below.
Master Password
User Password
The system manufacturer or dealer who intends to enable the device lock function for end users must set the master
password even if only single level password protection is required. Otherwise, the default master password which
is set by Hitachi Global Storage Technologies can unlock a device that is locked with a user password

10.9.4 Master Password Revision Code

This Master Password Revision Code is set by Security Set Password command with the master password. And this
revision code field is returned in the Identify Device command word 92. The valid revision codes are 0001h to
FFFEh. The default value of Master Password Revision Code is FFFEh. Values 0000h and FFFFh are reserved.
('F3'h)
('F4'h)
('F5'h)
('F6'h)
The device disables media access commands after power on. Media access
commands are enabled by either a Security Unlock command or a Security Erase
Unit command.
The device enables all commands. If a password is not set this mode is entered after
power on, otherwise it is entered by a Security Unlock or a Security Erase Unit
command.
The device enables all commands except those which can update the device lock
function, set/change password. The device enters this mode via a Security Freeze
Lock command. It cannot quit this mode until power off.
When the device lock function is enabled and the User Password is forgotten, the
device can be unlocked via a Master Password.
When the device lock function is enabled and the User Password is forgotten,
then only the Master Password with a Security Erase Unit command can unlock
the device. Then the user data is erased.
When the Master Password is set, the device does NOT enable the Device Lock
Function, and the device CANNOT be locked with the Master Password, but the
Master Password can be used for unlocking the locked device.
The User Password should be given or changed by a system user. When the User
Password is set, the device enables the Device Lock Function, and then the
device is locked on next power on reset. If Software Setting Preservation is
disabled, the device is locked on COMRESET as well.
Travelstar 5K100 (Serial ATA) Hard Disk Drive Specification
59