So I just found a file on my SSD that I can't read fully anymore. Worried. Got the stats. I don't really know much about SSDs. Does this mean this one might begin failing on me?
Nah, it's a scale from 100 to 1, so you're fine at 99. That 99% Good up at the top is usually the best overall indicator.
Files that can't be read or fully read can also be caused by poorly written programs that don't edit or save them right or a number of other things.
@DrGravitas Looking into this right now, and it appears that no, I'm not fine and that GOOD thing means absolutely nothing. Apparently a Samsung EVO 870 thing.
My OCZ from 2012 has been used heavy and it's only at 95%. It also uses the "Good" rating; it's not exclusive to Samsung's thing.
What are you looking at that's saying your not fine?
@DrGravitas This https://www.techpowerup.com/forums/threads/samsung-870-evo-beware-certain-batches-prone-to-failure.291504/ along with a whole bunch of stuff on the internet that instantly pops up the second you look up SAMSUNG SSD FAILURE
I have the same model for the old system's 3rd drive (but I don't remember its values) and my understanding of SMART leads me to think you're alright. But, I can't speak to problems with individual model's lifetimes.
It's always a good idea to have backups even if it's healthy, though.
If you don't have a drive you can back up to, I do recommend getting one regardless of the state of this one.
I'm not familiar with that software, so I don't know what is represents as bad in this instance. I had to look up what exactly a lba represents, but it looks like 32 or 64 bits.
Over time, SSDs do lose write access on cells and the firmware accounts for this by shifting representations of files around and performing other wear-leveling functions. But, as you said, the file was not completely readable. It could still be a coincidental program error that led you to check and now see normal wear-out (unless you've performed this scan before and it was all good).
But I'm just a fox on the Internet; you do what you gotta do to keep your stuff safe!