Operation With Power Management Modes; Security Mode Feature Set; Security Mode; Security Level - Hitachi 7K100 - Travelstar - Hard Drive Specifications

11.8.6 S.M.A.R.T. operation with power management modes
The device saves attribute values automatically on every head unload timing except the emergency unload, even if
the attribute auto save feature is not enabled. The head unload is done not only by Standby, Standby Immediate,
Sleep command, and Hard Reset, but also by the automatic power saving functions such as ABLE-3 or Standby
timer. Thus it is not necessary for a host system to enable the attribute auto save feature when it utilizes power
management. If the attribute auto save feature is enabled, attribute values will be saved after 30 minutes have passed
since the last saving, besides above condition.

11.9 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:
Security Set Password
Security Unlock
Security Erase Prepare
Security Erase Unit
Security Freeze Lock
Security Disable Password

11.9.1 Security mode

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

11.9.2 Security level

The following security levels are provided:
High level security
Maximum level
security
('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 forgotten, the
device can be unlocked via a Master Password.
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. The user data is then erased.
Travelstar 7K100 Hard Disk Drive Specification
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