8.1.11.
Sanitizing (Purging) Based on USA Navy NAVSO P-5239-26
The Navy Staff Office Publication (NAVSO) 5239, “Information Systems Security (INFOSEC)
Program Guidelines” is issued by the Naval Information Systems Management Center and
provides policy, guidelines, and procedures for clearing and purging computer system memory
and other storage media for release outside of and for reuse within controlled environments. It
pertains to both classified and sensitive unclassified information, and implements DOD 5200.28-
M and CSC-STD-005-85. Chapter 3 describes the cleaning and purging of data storage media,
and section 3.5 describes the purging of EEPROM and EAROM. To purge EEPROM:
•
”Overwrite all locations with any pattern.”
M-Systems’ enhanced Security Erase feature complies with the above requirements, as follows:
•
Activate the Fill-Format option, set to fill the media with a random pattern (see Sections
8.1.4 and 8.1.5).
Then
•
Perform a full Security Erase (see Section 8.1.1).
8.1.12. Declassification
Based on IRIG-106 (NTISSP-9)
The Telemetry Group (TG) of the Range Commanders Council (RCC) has prepared documents
to foster the compatibility of telemetry transmitting, receiving, and signal processing equipment
at the member ranges under the cognizance of the RCC.
IRIG (Inter-Range Instrumentation Group) 106 are set of Telemetry standards which provide the
necessary criteria on which to base equipment design and modification.
The National Telecommunication & Information Security Systems (NTISSP-9) Chapter 10
describes the requirements for SOLID STATE RECORDER STANDARD. Section 10.8
(declassification) addresses declassification for various Solid-State Disks as follows:
•
First Erase – Every memory block on the board is erased
•
First write 0x55 – Every memory chip location is recorded with a pattern 0x55
•
Second Erase – Every memory block on the board is erased
•
Second write 0xAA – Every memory chip location is recorded with a pattern 0xAA
•
Third Erase – Every memory block on the board is erased
IRIG106 chapter 10 requires keeping all
failed to erase
and
failed to write
blocks in tables, and
enabling the user to read the data in these tables.
38
Product Specification and User Manual FFD 3.5" Ultra320 SCSI
43-PS-0305-00 Rev. 2.0
