4 ms·

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

by Yokolos 11mo 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

formerly_proven 11mo ago
Example: https://www.ssd.group/wp-content/uploads/2022/07/PM1733-25-SSD-Datasheet_v1.3_for-General.pdf 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).
- Yokolos 11mo ago
  That's literally just the JEDEC spec.
  - formerly_proven 11mo ago
    Point being?