[toast0]

With thousands of sata SSDs, I've seen one fail in a traditional fashion (some sectors weren't readable, otherwise mostly fine) and the rest of the maybe hundred that failed would just disappear from the bus. I don't monitor the wear out indicators, but from occasional looking, we're never near a significant fraction of the wear capacity. I'm very happy not to have anymore spinning disks in production, because the ssds fail less often, it's just the failures are more annoying, because it's hard to have an orderly shutdown when disks disappear.

[rsync]

Funny how ~18 years later I still have compact flash devices plugged into IDE ports that have never failed. In fact, across a broad spectrum of applications and installs, I have never seen a working CF device fail in the field.

SSDs on the other hand ...

I use SSDs for caching (ZFS read cache and mirrored SLOGs) and I use them for mirrored boot devices in modern, production systems that should have a fast OS device.

But if I want a system to run forever ... if I am optimizing for longevity ... I use compact flash, even in 2016.

(yes, of course I set them to be read-only and disable swap)