alt Hacker NewsWell I don't see why you'd want to keep running a drive that is showing warning signs, it's just asking for trouble. But even if one doesn't replace them from this data, if you start seeing alerts and at the same time your database suffers from corruption, that also shows the use of SMART.
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N=1, but I had a drive show catastrophic SMART failures once. I figured I'd take the opportunity to tinker with the exposed serial port on the drive's PCB and wiped the SMART values.
Funny thing was, I didn't actually observe any data loss. I stressed the drive for several days, no errors. It went back in my daily driver for the next 5 years with no failure. It's been 15 years since that happened and the drive still hasn't failed.
I don't trust SMART anymore.
Because taking drives out of service for SMART signals would cost a fortune and almost none of those drives were actually going to fail.