3 ms·
If it's eMLC, kept at elevated temperature (40C), and unpowered. Consumer drives use higher floating gate voltages so they'll keep data for a year while unplugg
by supertrope 3y ago
If it's eMLC, kept at elevated temperature (40C), and unpowered. Consumer drives use higher floating gate voltages so they'll keep data for a year while unplugged.
- teddyh 3y agoA year is still much shorter than most people assume. In my experience, most people think they can buy SSDs, put data on them and then shelve them for 20 years without issue.
- istjohn 3y agoI recently recovered data from a 2012 Macbook Air SSD that was powered off for 7 years with no data loss.
- teddyh 3y agoThe source does say “best case can be more than 10 years.”. I would still not use off-line SSDs as long-term archives.
- supertrope 3y agoOne year is the worst case scenario. Drive with used up total bytes written rating, very hot environment, and unplugged. While SSDs are inferior for long term data persistence if it’s irreplaceable data you should be bring the file system online on a schedule and let it run checksums. If something errors restore from another copy. The magic of digital storage is perfect copies at low cost. The loss of any one copy is fine as long as it has been copied forward elsewhere.