Making sense of the SMART indicators for NVMe SSDs, including all recent models fitted by Apple to Macs.
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The life of an SSD should be more predictable than a hard disk. All you need is its TBW, and the total amount of data written to it so far.
The real world performance of S.M.A.R.T. to warn of imminent drive failure is not as impressive as its claims, but here is how to get better use from it.
The Eclectic Light Company 