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S.M.A.R.T. status iMac 2019: Not supported?

D

Dutch60

macrumors 6502
Original poster
May 18, 2019
250
97
I have an iMac 2019 / i9 / Vega/ 64Gb RAM memory / 2Tb SSD.
In disk utility I can check several things. With S.M.A.R.T status I read: " not supported" .
Also when I choose: (apple logo) / about this Mac / System / Hardware / Storage/ Macintosh HD....I do not see S.M.A.R.T. at all (so also not as a seperate item). No readings here.
I do not think this is a problem (Geekbench readings and Blackmagic disk speed numbers are great), but maybe I'm wrong?
Does someone have an explanation for me? Is it really no problem, or should I do something? Also: how can I check the health of SSD' s inside my iMac? Any recommended tool maybe?
Thank you very much!
 
TBH, SMART is not something I lose sleep over.

While the intention is good, and it doesn't hurt to have information, it's not consistently supported, which hinders its usefulness.

And in my experience, it has never provided useful warning of drive failure (though other signs have), and I've even had a drive that SMART reports as good fail.

To me, it's a mixed bag at best, and not a tool that should be completely relied upon.

Nothing can ever take the place of a good backup strategy.

Dantz Development (Retrospect's original developer) had a very clever marketing slogan -- "To go forward, you must back up."
 
S.M.A.R.T. isn't perfect. I've had drives fail with no warnings but I've also had some produce S.M.A.R.T. errors via DriveDX giving me the opportunity to prepare for their impending failure.

Apple's SSDs do support S.M.A.R.T. in spite of what is displayed in Disk Utility.

You can confirm their values using apps like DriveDX or SMART Utility.
 
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