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Reserved
17-255
Password ( 32 bytes )
01-16
Control Word
bit 0 : Identifier (1- Master, 0- User)
bit 1 : Erase mode (1- Enhanced, 0- Normal)
Enhanced mode is not supported
bit 2-15: Reserved
00
Description
Word
Figure 102. Erase Unit Information
Identifier
Zero indicates that the device should check the supplied password against the
user password stored internally. One indicates that the device should check the
given password against the master password stored internally.
The Security Erase Unit command erases all user data and disables the security mode feature (device
lock function). So after completing this command, all user data will be initialized to zero with write
operation. At this time it is not verified with read operation whether the sector of data is initialized
correctly. Also, the defective sector information and the reassigned sector information for the device are
not updated. The security erase prepare command should be completed immediately prior to the Security
Erase Unit command. If the device receives a Security Erase Unit command without a prior Security
Erase Prepare command, the device aborts the security erase unit command.
This command disables the security mode feature (device lock function); however the master password is
still stored internally within the device and may be reactivated later when a new user password is set.
If you execute this command on disabling the security mode feature (device lock function), the password
sent by the host is NOT compared with the password stored in the device for either the Master Password
or the User Password. The device then erases all user data.
The execution time of this command is set in word 89 of Identify device information.
Deskstar 60 GXP Hard disk drive specification
141
Содержание IC35L020 - Deskstar 20 GB Hard Drive
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