NEC ShieldPRO N22A, Руководство пользователя

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Supplement 2: Erasing HDD data
The following shows the erase HDD data procedure.

NSA (Random(1)

Random(2)

00h)
Writes [random data

random data

00] in the order in the entire HDD area.
The erase HDD procedure conforms to the method recommended by NSA.
<HDD erase procedure>
1. Select [Hard Disk Erase] and press
Enter . The [Setup Confirmation] dialog box appears.
2. Select [Yes] to exit the BIOS SETUP Utility and transit to the erase HDD dialog box. The following dialog box
appears.
3. Press Y to start erasing the HDD.
Press N to cancel the erase HDD procedure and start system booting.
Press ESC to shutdown the system (power-off).
(9) No-Execute Memory Protection
This option allows you to specify whether the DEP (Data Execution Prevention) feature of
the HDD is enabled or not.
Option Parameter Description
No-Execute Memory
Protection Enabled
Disabled
Enable or disable the DEP (Data Execution Protection
Prevention) feature.
Set to [Enabled] to enable the DEP feature.
Set to [Disabled] to disable the DEP feature.
*Shaded value: Factory-set
DEP (Data Execution Prevention) is a feature of preventing illegal programs and data from
being executed in hardware manner. DEP disables computer virus to write or run program
codes illegally.

If you enter the BIOS SETUP Utility with the user password, item [Hard Disk Erase] does
not appear in the menu.

To boot N22A (to start Windows installed in the primary master hard disk), the HDD
master and HDD user passwords being set may not be entered even if [Primary Master
HDD Password] is set to [Enabled].
After the HDD data is erased, the data having been stored in the HDD cannot be restored.
Before erasing the HDD, make sure that necessary data does not remain in the HDD.
Erasure takes 80 to 140 minutes for a standard HDD (80 GB), 25 to 30 hours for a wide
temperature range HDD (80 GB), and 5 to 6 hours for a silicon disk (20 GB).