Comment by zozbot234
4 days ago
AIUI, informal tests have demonstrated quite a bit of data corruption in Flash drives that are literally so worn out that they might as well be about to fail altogether - well beyond any manufacturer's actual TBW specs - but not otherwise, least of all in new drives that are only written once over for the test. It seems that if you don't wear out your drive all that much you'll have far less to worry about.
No, even drives written once have started showing a rise in (correctable) errors after 2 years: https://news.ycombinator.com/item?id=43739028
That's a slight rise in ECC which is entirely expected. Flash storage can be expected to rely on error correction as part of normal functioning; it's not an abnormal condition.
Bit errors occurring after only 2 years, on flash that has been written to once, is not good at all.