Encrypting Data to Prevent Data Leaks Caused by a Stolen or Disposed Machine | User Guide | IM 7000, IM 8000, IM 9000
The default erase method is [Random Numbers], and the default number of overwrites is [3].
NSA : Overwrites data twice with random numbers and once with zeros.
DoD (5220.22-M) : Overwrites data with a random number, then with its complement, then with
another random number, and the data is verified.
Random Numbers: Overwrites data multiple times with random numbers. Select the number of
overwrites from one to nine.
Format: Formats the hard disk. Data is not overwritten.
BSI/VSITR: Overwrites data seven times with the fixed value (for example: 0x00).
Secure Erase (ATA): Overwrites data using an algorithm that is built in to the hard disk drive.
*1 National Security Agency (U.S.A)
*2 Department of Defense (U.S.A)
On the Settings screen, press [System Settings].
Press [Settings for Administrator] [Data Management] [Erase All
Memory].
From the list next to HDD Erase Method, select an erase method.
*1
*2
Press [Erase].
Press [Yes].