IBM DTTA-351010 Hard Drive Specifications - Page 88

Security Mode Feature Set

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10.6.5 S.M.A.R.T. commands The S.M.A.R.T. commands provide access to attribute values, attribute thresholds and other logging and reporting information. 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. The following commands are supported for this feature. Security Set Password ('F1'h) Security Unlock ('F2'h) Security Erase Prepare ('F3'h) Security Erase Unit ('F4'h) Security Freeze Lock ('F5'h) Security Disable Password ('F6'h) 10.7.1 Security mode Following security modes are provided. Device Locked mode 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. Device Unlocked mode 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. Device Frozen mode 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. 10.7.2 Security level Following security levels are provided. High level security When the device lock function is enabled and the User Password is forgotten the device can be unlocked via a Master Password. Maximum level security 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. 10.7.3 Password This function can have 2 types of passwords as described below. 80 OEM Specifications for DTTA-3xxxxx

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10.6.5
S.M.A.R.T. commands
The S.M.A.R.T. commands provide access to attribute values, attribute thresholds and other logging and
reporting information.
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.
The following commands are supported for this feature.
Security Set Password
('F1'h)
Security Unlock
('F2'h)
Security Erase Prepare
('F3'h)
Security Erase Unit
('F4'h)
Security Freeze Lock
('F5'h)
Security Disable Password
('F6'h)
10.7.1
Security mode
Following security modes are provided.
Device Locked mode
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.
Device Unlocked mode
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.
Device Frozen mode
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.
10.7.2
Security level
Following security levels are provided.
High level security
When the device lock function is enabled and the User Password is forgotten
the device can be unlocked via a Master Password.
Maximum level security
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.
10.7.3
Password
This function can have 2 types of passwords as described below.
80
OEM Specifications for DTTA-3xxxxx