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Ask HN: Has the Apple Silicon excessive disk read/write issue been fixed?

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Re: Ask HN: Has the Apple Silicon excessive disk read/write issue been fixed?

#31

Post by cool_hw »

xkcd-sucks wrote: post #26

M1 Macbook Pro, about 4 months old, used for work which involves lots of file data volume, only 8G RAM so there's a lot of swapping going on. The lifetime percentage value is a bit worrying. Also the "unsafe shutdown count" is entirely due to hard crashes / blank screen of death that happen randomly every few weeks === START OF SMART DATA SECTION === SMART overall-health self-assessment test result: PASSED SMART/Heal…

That is pretty crazy, going by that, (and I know this isn't how it works), you have a projected total use of 5.5 years.

Due to the onboard SSD, the machine will be dead.

Re: Ask HN: Has the Apple Silicon excessive disk read/write issue been fixed?

#32

Post by jayd16 »

phyalow wrote: post #24

smartctl 7.3 2022-02-28 r5338 [Darwin 21.4.0 arm64] (local build) Copyright (C) 2002-22, Bruce Allen, Christian Franke, www.smartmontools.org === START OF INFORMATION SECTION === Model Number: APPLE SSD AP2048R Serial Number: 0ba0160b818c6a36 Firmware Version: 387.100. PCI Vendor/Subsystem ID: 0x106b IEEE OUI Identifier: 0x000000 Controller ID: 0 NVMe Version: Macbook Pro M1 Max - 2021 16" 64GB Ram 2TB SSD

Is this saying you restart more than once an hour on average?

Re: Ask HN: Has the Apple Silicon excessive disk read/write issue been fixed?

#33

Post by unfocused »

M1 Air 16G 1TB (Bought on Nov 2020 - 1y 10 months old) I think I'm second on this page with "unsafe shutdowns" with 62. It's used by 4 people, 2 adults, 2 kids and heavily used pretty much all day and night.

Lots of web, and video watching. Some very light development and a ton of email :)

I think the unsafe shutdowns are due to my kids trying to run Steam and other games that may or may not work properly, e.g. Farming Simulator that didn't play nice, and cause the computer to freeze forcing us to do a hard shutdown.

  === START OF SMART DATA SECTION ===
  SMART overall-health self-assessment test result: PASSED
  
  SMART/Health Information (NVMe Log 0x02)
  Critical Warning:                   0x00
  Temperature:                        24 Celsius
  Available Spare:                    100%
  Available Spare Threshold:          99%
  Percentage Used:                    1%
  Data Units Read:                    68,237,533 [34.9 TB]
  Data Units Written:                 40,504,255 [20.7 TB]
  Host Read Commands:                 1,281,536,088
  Host Write Commands:                810,117,030
  Controller Busy Time:               0
  Power Cycles:                       332
  Power On Hours:                     892
  Unsafe Shutdowns:                   62
  Media and Data Integrity Errors:    0
  Error Information Log Entries:      0

Re: Ask HN: Has the Apple Silicon excessive disk read/write issue been fixed?

#35

Post by dwhl »

512/16 M1 Air used for about 9 months for video/photo editing and Xcode and some other dev.

  === START OF SMART DATA SECTION ===
  SMART overall-health self-assessment test result: PASSED
  
  SMART/Health Information (NVMe Log 0x02)
  Critical Warning:                   0x00
  Temperature:                        30 Celsius
  Available Spare:                    100%
  Available Spare Threshold:          99%
  Percentage Used:                    1%
  Data Units Read:                    73,619,047 [37.6 TB]
  Data Units Written:                 47,465,560 [24.3 TB]
  Host Read Commands:                 1,293,036,940
  Host Write Commands:                657,873,357
  Controller Busy Time:               0
  Power Cycles:                       353
  Power On Hours:                     529
  Unsafe Shutdowns:                   10
  Media and Data Integrity Errors:    0
  Error Information Log Entries:      0

Re: Ask HN: Has the Apple Silicon excessive disk read/write issue been fixed?

#37

Post by Tsiklon »

Mac Studio - 2TB disk - daily desktop/workstation

  SMART/Health Information (NVMe Log 0x02)
  Critical Warning:                   0x00
  Temperature:                        26 Celsius
  Available Spare:                    100%
  Available Spare Threshold:          99%
  Percentage Used:                    0%
  Data Units Read:                    44,959,209 [23.0 TB]
  Data Units Written:                 21,443,041 [10.9 TB]
  Host Read Commands:                 494,728,880
  Host Write Commands:                379,601,575
  Controller Busy Time:               0
  Power Cycles:                       291
  Power On Hours:                     469
  Unsafe Shutdowns:                   18
  Media and Data Integrity Errors:    0
  Error Information Log Entries:      0

Re: Ask HN: Has the Apple Silicon excessive disk read/write issue been fixed?

#38

Post by wtallis »

jayd16 wrote: post #32
phyalow wrote: post #24

smartctl 7.3 2022-02-28 r5338 [Darwin 21.4.0 arm64] (local build) Copyright (C) 2002-22, Bruce Allen, Christian Franke, www.smartmontools.org === START OF INFORMATION SECTION === Model Number: APPLE SSD AP2048R Serial Number: 0ba0160b818c6a36 Firmware Version: 387.100. PCI Vendor/Subsystem ID: 0x106b IEEE OUI Identifier: 0x000000 Controller ID: 0 NVMe Version: Macbook Pro M1 Max - 2021 16" 64GB Ram 2TB SSD

Is this saying you restart more than once an hour on average?

I'm not sure how it works for Apple's built-in SSD behaves, but in most laptops it is typical for the SSD to be fully powered off when the lid is closed and the system goes to sleep.

Re: Ask HN: Has the Apple Silicon excessive disk read/write issue been fixed?

#39

Post by whalesalad »

M1 Mac Mini. I beat the heck out of this thing.

    SMART/Health Information (NVMe Log 0x02)
    Critical Warning:                   0x00
    Temperature:                        28 Celsius
    Available Spare:                    100%
    Available Spare Threshold:          99%
    Percentage Used:                    5%
    Data Units Read:                    83,875,891 [42.9 TB]
    Data Units Written:                 70,257,403 [35.9 TB]
    Host Read Commands:                 881,926,045
    Host Write Commands:                530,490,261
    Controller Busy Time:               0
    Power Cycles:                       3,350
    Power On Hours:                     496
    Unsafe Shutdowns:                   13
    Media and Data Integrity Errors:    0
    Error Information Log Entries:      0
One thing that really stands out to me here is everyone else has a `Power Cycles` measurement in the hundreds... but mine is 3,350 which seems odd. Especially because this is not a laptop and it never goes to sleep. It has only been rebooted maybe 10 times since it was purchased about a year ago.
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