Samsung T7 500GB SSD 3-1/2 year / 42-month archival test complete.

This is #4 out of #6 SSD archival tests underway. The Samsung T7 500GB SSD was formatted on 9.1.22 and 449GB of data was put on it. It has not been plugged in since 9.1.22. I checked it today, 3.1.26 and everything was fine.

Future tests will be for #5 / 56 months and #6 / 68 months.

I will also retest #4 for a 10-year test. It will test not rewriting the data over a 10-year period with just one plug in to recharge over 10 years. That test is due on 9.1.32.

<><><><>

Daniel D. Teoli Jr. Archival Collection
Daniel D. Teoli Jr. Small Gauge Film Archive
Daniel D. Teoli Jr. Advertising Archive
Daniel D. Teoli Jr. VHS Video Archive
Daniel D. Teoli Jr. Popular Culture Archive
Daniel D. Teoli Jr. Audio Archive
Daniel D. Teoli Jr. Social Documentary Photography

I presume that your test methodology entails that, for example, #5 is not powered on at all, during the interval between 2022 and 4.5 years later...so this evaluates data retention across long intervals without power?!
And #4 evaluation would be 10 years from 2022, but inclusive of a single power up for initial evalution at 42mo. I might suggest consideration that unit #5 testing at 56mo be ignored, and to wait full 10 years without any interim powerup