Could this be a sensor or firmware issue? Smartctl/DriveDX showing over 1 PB's of data written to internal SSD ("lightly used" M1 Air)... 8gb 256

[quin0a]

 

[leman]

That's quite an endurance on that SSD

Jokes aside, to reach 1 Petabyte of writes in 3780 hours you'd need to continuously write to the drive with the average speed of > 70MB/s. Is it possible? Sure. Is it feasible? Very unlikely.

 

[jdb8167]

View attachment 2334803View attachment 2334804

What version of macOS? Early versions of Apple silicon macOS operating systems had very high SSD writes.

Edit: Your tools are only reporting 62% used. You should be OK but if you aren’t on the latest macOS, you should probably update your OS.

 

[chrfr]

What version of macOS? Early versions of Apple silicon macOS operating systems had very high SSD writes.

Edit: Your tools are only reporting 62% used. You should be OK but if you aren’t on the latest macOS, you should probably update your OS.

It's less that the early versions of macOS on Apple Silicon actually wrote a lot of and more that the reporting tools weren't accurately reporting the usage, so numbers were inflated.

 

[jdb8167]

It's less that the early versions of macOS on Apple Silicon actually wrote a lot of and more that the reporting tools weren't accurately reporting the usage, so numbers were inflated.

Nope. I wrote my own tool to check. macOS was writing a very large amount of data in some cases. The command line tool uses Apple’s own APIs to report TBW. Since early Apple silicon it has been accurate.