Security Mode Feature Set; Security Mode; Security Level; Passwords - IBM DTLA-305040 - Deskstar 41.1 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 pre-
vent unauthorized access to a hard disk drive even if the device is removed from the computer.
The following commands are supported for this feature:
Security Set Password
Security Unlock
Security Erase Prepare
Security Erase Unit
Security Freeze Lock
Security Disable Password

10.7.1 Security mode

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

10.7.2 Security level

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

10.7.3 Passwords

This function can have two kinds of passwords as described below:
Master Password
User Password
('F1'h)
('F2'h)
('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 for-
gotten, the device can be unlocked via a Master Password.
When the device lock function is enabled and the User Password is for-
gotten, only the Master Password with a Security Erase Unit command
can unlock the device. User data is then 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
device locked.
Identify Device Information word 92 contains the value of the Master
Password Revision Code set when the Master Password was last
changed. Valid values are 0001h through FFFEh.
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 the device is then locked on next power on reset or hard
reset.
Deskstar 40GV & 75GXP hard disk drive specifications
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