Comment by userbinator
Comment by userbinator 2 days ago
Endurance and retention are inversely correlated, and as I mentioned in my original comment, enterprise DC drives are designed to advertise the former at the expense of the latter. The industry standard used to be 5 years retention for consumer and 3 months for enterprise, after reaching the specified TBW. The wear level SMART counter reflects that; "96% remaining" on an enterprise drive may be 40% or less on a consumer one having written the same amount, since the latter is specified to hold the data for longer once its rating has been reached.
Retention is offline retention. Not online. So not sure what point you are trying to make. If it is that SSDs shouldn't be used for cold storage, yeah I agree, and enterprise SSds aren't designed for cold storage. But you seem to be linking retention to TBW, which are largely orthogonal metrics. If you are going to use the SSDs in a NAS, which by definition are running all the time, why would you even care about the rentention rating?