I've had HDDs years ago that used to fail and Windows would warn me that HDD has serious problem and gave me time to do something about it, because otherwise after I reboot, it wasn't guaranteed for HDD to work again. That's like 10+ years ago.
I've had an SSD for the past 6+ years and I've been using it nonstop. It's a 256 GB SSD and I've written over 170 terabytes on it so far. In Windows disk and drives settings, I see it has still 54% of its lifetime remaining, which is amazing.
I want to know how reliable is this life time number exactly? I know that Windows setting uses S.M.A.R.T data to estimate the remaining life time, but are SSDs like HDDs and do they fail all of sudden just because of a bad sector or something like that? Or do they degrade over time gradually? I check that remaining life time every few months and it does go down 1% some times.
More details for my SSD:
TBW for my SSD is 160 TB, but I've already written 170 TB and SMART shows 54% life time remaining. it's been almost always running at ~50.C temp.