Comment by Yokolos
4 days ago
Any given TBW/DWPD values are irrelevant for unpowered data retention. Afaik, nobody gives these values in their datasheet and I'm wondering where their numbers are from, because I've never seen anything official. At this point I'd need to be convinced that the manufacturers even know themselves internally, because it's never been mentioned by them and it seems to be outside the intended use cases for SSDs
Example: https://www.ssd.group/wp-content/uploads/2022/07/PM1733-25-S...
> Component Design Life 5 years
> TBW 14 PB for 7.68 TB drives
> Data Retention 3 months
And then 2.7.3 explains that this number applies for 40 °C ambient, not the operating/non-operating range (up to 85 °C).
That's literally just the JEDEC spec.
Point being?