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Western Digital Hard Disk Drive OEM Specification
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 re-activated 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 both the Master Password and the User Password, and then
the device only erases all user data.
The execution time of this command is set in word 89 of Identify device information.
