Do SDDs have data retention issues? Can they be used for

>>57586430
Long term and unpowered? No, you'll risk losing data.
Long term and powered is safe.

Yes, they suffer from data rot like DRAM, since the data is stored with electrical charges. Magnetic and optical media also have issues with data rot, though I would trust LTO tapes above anything else, or perhaps archival format optical media.

We are talking decade long storage, though, which is not a regular problem people have.

>>57586430
Not issues, but possibilities.

Yes they can be used for long term storage, meanwhile you have them powered for all that time.

>>57586643
I unplug my computer every night, never had issues with my SSD's

>>57586660
One night wont affect it, not even one year.
But after a long time (years) you will notice problems.

Its a theoretical problem that exists but isnt likely to happen but can happen.

>>57586430
>Can they be used for long-term storage?

why would you want to? Blu Ray m-discs are cheaper per gb.

https://en.wikipedia.org/wiki/M-DISC

>>57586430
They are not made for that function, there are many alternatives that are cheaper and better suited.
After all how fast do you need to read and write to an archive drive?

>>57586684
Actually I have seen data issues in as little as 6 months without a charge, granted that was with some early models. Still turn it on and read a few files every few weeks to be safe. If you do that then it should last a long time. As I understand it the charge leaks much like an array of very tiny capacitors, so power regulation is needed.

>>57586919
Simply powering it on will refresh the charges all across the SSD?