M1 Mac owners are experiencing high SSD writes over short periods of time

Re:M1 Mac owners are experiencing high SSD writes over short... by morpheuskafka on Tuesday February 23, 2021 @10:22PM (#26246229)

Is there something different about the drives on non-M1 Macs? My MBP 16 is showing way more read/write than that and still zero percent used.

  SMART/Health Information (NVMe Log 0x02)
  Critical Warning:                   0x00
  Temperature:                        36 Celsius
  Available Spare:                    100%
  Available Spare Threshold:          99%
  Percentage Used:                    0%
  Data Units Read:                    108,058,416 [55.3 TB]
  Data Units Written:                 95,524,343 [48.9 TB]
  Host Read Commands:                 1,004,502,098
  Host Write Commands:                558,965,971
  Power Cycles:                       155
  Power On Hours:                     644
  Unsafe Shutdowns:                   36

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Re:M1 Mac owners are experiencing high SSD writes over short... by ddoeth on Wednesday February 24, 2021 @05:50AM (#26248659)

My 2016 MPB is also at around those R/W numbers but a bit higher in the used area. I am however not sure what those Power On Hours are refering to, since I have been using this machine daily for many hours.

  SMART/Health Information (NVMe Log 0x02)
  Critical Warning:                   0x00
  Temperature:                        37 Celsius
  Available Spare:                    87%
  Available Spare Threshold:          2%
  Percentage Used:                    5%
  Data Units Read:                    98,665,764 [50.5 TB]
  Data Units Written:                 84,525,474 [43.2 TB]
  Host Read Commands:                 980,835,796
  Host Write Commands:                811,309,011
  Controller Busy Time:               0
  Power Cycles:                       14,955
  Power On Hours:                     359
  Unsafe Shutdowns:                   21
  Media and Data Integrity Errors:    0
  Error Information Log Entries:      0

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Re:M1 Mac owners are experiencing high SSD writes over short... by maxerickson on Wednesday February 24, 2021 @07:02AM (#26249034)

It's been ~1700 days since mid 2016, I would guess the power cycles value there is swapped with the power on hours.

Or you power cycle 10 times almost every day.

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Re:M1 Mac owners are experiencing high SSD writes over short... by wtallis on Wednesday February 24, 2021 @07:35AM (#26249216)

The SSD will experience a power cycle every time you close the lid and the laptop goes to sleep.

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