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Western Digital Hard Disk Drive OEM Specification
9.20.3 Sanitize Device State Machine
Figure 14 describes the operation of the Sanitize Device state machine.
9.20.3.1 SD0: Sanitize Idle State
In SD0: Sanitize Idle state the Sanitize Device state machine is ready for a sanitize operation command or a
SANITIZE FREEZE LOCK EXT command.
This state is entered when the device processes a power-on reset while in the SD1: Sanitize Freeze Lock state or
the SD4: Sanitize Operation Succeeded state.
While in this state, Sanitize Device state machine does not change state if the device processes:
a) a hardware reset or power-on reset
b) a SANITIZE STATUS EXT command.
Transition SD0:SD1: If the device processes a SANITIZE FREEZE LOCK EXT command, then the device
transitions to the SD1: Sanitize Frozen state.
Transition SD0:SD2: If the device successfully processes a supported sanitize operation command, then the device
transitions to the SD2: Sanitize Operation state.
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