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5 How to Erase HDD?
DoD Erase
This is to comply with the U.S.A. Department of Defense (DoD 5220) standard to
fully erase the HDD three times bit by bit to rewrite HDD to guarantee the data
was deleted. It will damage the data in HDD, please make sure you have backup
all important data before using this function.
Note
We do not suggest that user removes HDD during erase process because this action may
damage HDD.
DoD EraseComp
Besides DoD erase, this function will also execute compare function to make
sure the random bit was correctly written. This way of erase is to erase HDD over
each sector three times: the first time with zeros (0x00), second time with 0xFF
and the third time with random characters. There is one final pass to compare
random characters by reading. It will damage the data in HDD, please make sure
you have backup all important data before using this function.
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