Hitachi Deskstar 7K400, Specifications

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Deskstar 7K400 Hard Disk Drive Specification
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10.8 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 a device even if it is removed from the computer.
New commands are supported for this feature as listed below:
10.8.1 Security mode
The following security modes are provided:
10.8.2 Security level
The following security levels are provided:
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)
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.
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,
only the Master Password with a Security Erase Unit command can unlock the
device. User data is then erased.