Clearing or sanitizing SSDs
Clearing means that all customer-generated data in reusable memory (acquisition records, settings, measurements, screen
captures, reports, and so on) is modified such that the data cannot be recovered using standard means of access. Standard
means of access includes typical OS file utilities. The data may still be on the memory device, but requires specialized
software and/or hardware to recover. You typically clear an instrument when you want to erase files to clear space or turn
the instrument over to another person or department.
Sanitizing means that all data in reusable memory is changed or overwritten such that the original data is no longer in
memory, and the older data cannot be recovered using any known technology. You typically do a sanitize operation when
you move an instrument (temporarily or permanently) from a secured area to a nonsecured area.
To clean the Linux SSD, see Clearing the Linux SSD on page 9.
To sanitize the Linux SSD, see Sanitizing the SSD on page 9.
Clearing the Linux SSD
The fastest way to clear the user-accessible memory is to run the TekSecure function. The TekSecure function writes all
zeros in the user-data partition of the Linux SSD, and then reloads the partition with the necessary factory default files and
directories.
You can continue using the oscilloscope after running TekSecure, as TekSecure does not erase or change the operating
system, factory calibration constants, Ethernet settings, or Demo setups.
To run the TekSecure application:
1. Tap Utility > Security on the oscilloscope Menu bar.
2. Tap Run SQE Tests TekSecure to start the process. The process takes up to 10 minutes to run.
Note: As the SQE Tests TekSecure function overwrites data in the user-data partition of the SSD, and the old data
cannot be recovered by known technology, then running SQE Tests TekSecure may meet your organizations needs
for sanitizing and retaining a working instrument. Your organization must make this decision based on the fact that
the other partitions on the SSD retain their data and files after running SQE Tests TekSecure.
Sanitizing the SSD
The instrument does not have any function to sanitize the entire SSD and retain instrument operation.
Clearing or sanitizing SSDs
6 Series B Mixed Signal Oscilloscopes Declassification and Security Instructions 9