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Memory Clearing, Sanitization and Removal Procedures
Erase and Overwrite All
Erase and Overwrite All
This function is available in MXG Series A, PSG, and ESG instruments only. It is not available in MXG Series B
and EXG instruments. Use Erase and Sanitize All instead.
This function performs the same actions as Erase All , plus it clears and overwrites various memory types, as
described below.
Memory Type Models Description
SRAM
(Battery-
backed)
Not MXG All addressable locations are overwritten once with random
characters.
CPU Flash All 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.
Hard Disk PSG E8267C,
E8267D with
Option 005 only
ESG E4438C
All addressable locations are overwritten once with a random
character.
Flash Drive PSG E8257N with
Options 008 and 340
PSG E8257D,
E8663D with
Option 008
PSG E8267D with
Option 009
All addressable locations are overwritten once with a random
character.
Model Key Sequence
MXG (Series A) File > More > Security > Erase and Overwrite All > Confirm Overwrite
PSG
ESG Utility > Memory Catalog > More > Security > Erase and Overwrite All >
Confirm Overwrite