Security Mode Feature Set; Security Mode; Security Level; Password - IBM DBCA-204860 - Travelstar 4.8 GB Hard Drive Specifications

10.7 Security Mode Feature Set

Security Mode Feature Set is a powerful security feature. With a device lock password, a user can prevent
unauthorized access to hard disk device even if the device is removed from the computer.
New commands are supported for this feature as below.
Security Set Password
Security Unlock
Security Erase Prepare
Security Erase Unit
Security Freeze Lock
Security Disable Password

10.7.1 Security mode

Following security modes are provided.
Device Locked mode
Device Unlocked mode
Device Frozen mode

10.7.2 Security level

Following security levels are provided.
High level security
Maximum level security

10.7.3 Password

This function can have 2 types of passwords as described below.
Master Password
User Password
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O E M Specifications of DBCA-2xxxxx 2.5 inch H D D
('F1'h)
('F2'h)
('F3'h)
('F4'h)
('F5'h)
('F6'h)
The device disables media access commands after power on. Media access com-
mands 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 user data is erased.
When the Master Password is set, the device does N O T enable the Device Lock
Function, and the device can N O T be locked with the Master Password, but
the Master Password can be used for unlocking the device locked.
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 or hard reset.