Recently I've had a lot of soft hanging on my system where new apps won't open, which makes me believe maybe there are read failures on my SSD.
Two things of concern from below:
1. `Available Spare Threshold` is 10% which indicates that my reallocated sectors might be really high. I'm surprised, given that `Percentage Used` is only 2% meaning I've only used 2% of the expected SSD life.
2. `13` errors, although I have no idea what they mean.
This is a 15" 2017 MBP with a 1TB SSD.
A good document on this report is here: https://media.kingston.com/support/downloads/MKP_521.6_SMART-DCP1000_attribute.pdf
Two things of concern from below:
1. `Available Spare Threshold` is 10% which indicates that my reallocated sectors might be really high. I'm surprised, given that `Percentage Used` is only 2% meaning I've only used 2% of the expected SSD life.
2. `13` errors, although I have no idea what they mean.
This is a 15" 2017 MBP with a 1TB SSD.
~ smartctl -a disk0
smartctl 7.3 2022-02-28 r5338 [Darwin 21.5.0 x86_64] (local build)
Copyright (C) 2002-22, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF INFORMATION SECTION ===
Model Number: APPLE SSD SM1024L
Serial Number: <SNIP>
Firmware Version: CXS5LA0Q
PCI Vendor/Subsystem ID: 0x144d
IEEE OUI Identifier: 0x002538
Controller ID: 2
NVMe Version: <1.2
Number of Namespaces: 1
Local Time is: Mon Jul 25 11:37:59 2022 EDT
Firmware Updates (0x06): 3 Slots
Optional Admin Commands (0x0006): Format Frmw_DL
Optional NVM Commands (0x001f): Comp Wr_Unc DS_Mngmt Wr_Zero Sav/Sel_Feat
Maximum Data Transfer Size: 256 Pages
Supported Power States
St Op Max Active Idle RL RT WL WT Ent_Lat Ex_Lat
0 + 6.00W - - 0 0 0 0 5 5
1 - 0.0400W - - 1 1 1 1 210 1200
2 - 0.0050W - - 2 2 2 2 1900 5300
=== START OF SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED
SMART/Health Information (NVMe Log 0x02)
Critical Warning: 0x00
Temperature: 40 Celsius
Available Spare: 100%
Available Spare Threshold: 10%
Percentage Used: 2%
Data Units Read: 374,873,280 [191 TB]
Data Units Written: 131,132,203 [67.1 TB]
Host Read Commands: 7,906,484,665
Host Write Commands: 2,528,705,778
Controller Busy Time: 8,388
Power Cycles: 43,889
Power On Hours: 2,713
Unsafe Shutdowns: 156
Media and Data Integrity Errors: 0
Error Information Log Entries: 13
Error Information (NVMe Log 0x01, 16 of 64 entries)
Num ErrCount SQId CmdId Status PELoc LBA NSID VS
0 13 0 0x0000 0x4016 0x004 0 1 -
1 12 0 0x0000 0x4016 0x004 0 1 -
2 11 0 0x0000 0x4016 0x004 0 1 -
3 10 0 0x0000 0x4016 0x004 0 1 -
4 9 0 0x0000 0x4016 0x004 0 1 -
5 8 0 0x0000 0x4016 0x004 0 1 -
6 7 0 0x0000 0x4016 0x004 0 1 -
7 6 0 0x0000 0x4016 0x004 0 1 -
8 5 0 0x0000 0x4016 0x004 0 1 -
9 4 0 0x0000 0x4016 0x004 0 1 -
10 3 0 0x0000 0x4016 0x004 0 1 -
11 2 0 0x0000 0x4016 0x004 0 1 -
12 1 0 0x0000 0x4016 0x004 0 1 -
A good document on this report is here: https://media.kingston.com/support/downloads/MKP_521.6_SMART-DCP1000_attribute.pdf