Soldato
- Joined
- 6 Sep 2016
- Posts
- 11,905
Most NVME drives are certified to hold data with power turned off for only up to 12 months before degradation. It's just quantum physics - the whole NAND cells work on quantum tunnelling, so it will happen eventually by itself and data will pretty much just "evaporate" from cells. Power is required for controller to be able to refresh cells periodically.
It's more than that. They've made them so once the drive is corrupted you have a brick. And that it kills the drive early if you disable power saving.