Security Features & Document of Volatility 22
Memory Clearing, Sanitization and Removal Procedures
Erase and Sanitize All (Option 006 Only)
Erase and Sanitize All (Option 006 Only)
This function performs the same actions as Erase All, plus it clears and
overwrites the various memory types, as described below.
Memory Type Models Description
SRAM
(Battery- backed)
PSG, ESG only All addressable locations are overwritten once with random characters.
CPU Flash MXG Series A
ESG
User data is erased with flash chip block-erase commands. No overwrite
is performed. During erasure, the system files are temporarily moved to
main memory and are then restored to CPU Flash when erasure is
complete.
Extended
Persistent
Memory
(Flash)
MXG N5162A/82A only The file system is formatted, then all addressable locations are overwritten
with random characters, and then the file system is reformatted again.
These actions are then repeated.
Hard Disk ESG E4438C All addressable locations are overwritten with a random character three
times.
Model Key Sequence
MXG (Series A) File > More > Security > Erase and Sanitize All > Confirm Sanitize
ESG Utility > Memory Catalog > More > Security > Erase and Sanitize All >
Confirm Sanitize
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