Looking to see the output the command
nvme smart-log /dev/devicename
and brand/model of the drive.
maybe a short description how you use it.
I’ll start.
280G optane 900p
Used as swap space and with lvmcache
480G optane 905p
dedicated slog device
–
It could be interesting to see how much abuse SSDs can take?
Intel 660p 1TB
xfs filesystem on lvm
Intel 660p 1TB
ditto above
Boot drive for a Linux NAS and VM server. It is a Samsung SSD 960 EVO 250GB
Smart Log for NVME device:nvme0n1 namespace-id:ffffffff
critical_warning : 0
temperature : 40 C
available_spare : 100%
available_spare_threshold : 10%
percentage_used : 12%
endurance group critical warning summary: 0
data_units_read : 59,700,901
data_units_written : 70,193,887
host_read_commands : 351,927,695
host_write_commands : 768,219,159
controller_busy_time : 2,373
power_cycles : 21
power_on_hours : 2,064
unsafe_shutdowns : 10
media_errors : 0
num_err_log_entries : 3
Warning Temperature Time : 0
Critical Composite Temperature Time : 0
Temperature Sensor 1 : 40 C
Temperature Sensor 2 : 49 C
Thermal Management T1 Trans Count : 0
Thermal Management T2 Trans Count : 0
Thermal Management T1 Total Time : 0
Thermal Management T2 Total Time : 0
Boot drive for a Talos II Power9 workstation. It is a Samsung SSD 960 EVO 500GB
critical_warning : 0
temperature : 31 C
available_spare : 100%
available_spare_threshold : 10%
percentage_used : 0%
endurance group critical warning summary: 0
data_units_read : 1,009,823
data_units_written : 5,957,831
host_read_commands : 10,554,849
host_write_commands : 45,803,929
controller_busy_time : 222
power_cycles : 184
power_on_hours : 441
unsafe_shutdowns : 141
media_errors : 0
num_err_log_entries : 1
Warning Temperature Time : 0
Critical Composite Temperature Time : 0
Temperature Sensor 1 : 31 C
Temperature Sensor 2 : 35 C
Thermal Management T1 Trans Count : 0
Thermal Management T2 Trans Count : 0
Thermal Management T1 Total Time : 0
Thermal Management T2 Total Time : 0
Boot and only drive for a Ryzen 9 workstation. It’s a INTEL SSDPED1D960GAY aka 960 GB Optane 905p.
Smart Log for NVME device:nvme0n1 namespace-id:ffffffff
critical_warning : 0
temperature : 49 C
available_spare : 100%
available_spare_threshold : 0%
percentage_used : 0%
data_units_read : 7,292,705
data_units_written : 19,884,124
host_read_commands : 103,189,386
host_write_commands : 265,537,276
controller_busy_time : 104
power_cycles : 46
power_on_hours : 8,377
unsafe_shutdowns : 19
media_errors : 0
num_err_log_entries : 0
Warning Temperature Time : 0
Critical Composite Temperature Time : 0
Thermal Management T1 Trans Count : 0
Thermal Management T2 Trans Count : 0
Thermal Management T1 Total Time : 0
Thermal Management T2 Total Time : 0
Dell laptop drive, which is a SK hynix PC300 NVMe Solid State Drive 1TB.
critical_warning : 0
temperature : 30 C
available_spare : 100%
available_spare_threshold : 10%
percentage_used : 1%
endurance group critical warning summary: 0
data_units_read : 134,076,916
data_units_written : 70,028,498
host_read_commands : 771,670,875
host_write_commands : 3,094,309,356
controller_busy_time : 2,710
power_cycles : 1,090
power_on_hours : 256
unsafe_shutdowns : 182
media_errors : 4
num_err_log_entries : 2
Warning Temperature Time : 0
Critical Composite Temperature Time : 0
Temperature Sensor 1 : 30 C
Thermal Management T1 Trans Count : 0
Thermal Management T2 Trans Count : 0
Thermal Management T1 Total Time : 0
Thermal Management T2 Total Time : 0
Wow 3 billion write commands with only 256 power on hours
For those that don’t know, the nvme command is provided by the nvme-cli package on Debian. 
2x NVMe drive in RAID10,far2 using mdadm
Serves as boot and OS drive for virtualization hosts running Debian Buster as well as a chunk of space for fast VM disks on nvme. EPYC 7351P processors in both.
root@vmhost7:~# nvme smart-log /dev/nvme0n1
Smart Log for NVME device:nvme0n1 namespace-id:ffffffff
critical_warning : 0
temperature : 41 C
available_spare : 100%
available_spare_threshold : 10%
percentage_used : 0%
data_units_read : 4,170,354
data_units_written : 2,698,640
host_read_commands : 59,424,864
host_write_commands : 48,868,100
controller_busy_time : 74
power_cycles : 19
power_on_hours : 884
unsafe_shutdowns : 16
media_errors : 0
num_err_log_entries : 0
Warning Temperature Time : 0
Critical Composite Temperature Time : 0
Thermal Management T1 Trans Count : 0
Thermal Management T2 Trans Count : 0
Thermal Management T1 Total Time : 0
Thermal Management T2 Total Time : 0
root@vmhost7:~# nvme smart-log /dev/nvme1n1
Smart Log for NVME device:nvme1n1 namespace-id:ffffffff
critical_warning : 0
temperature : 41 C
available_spare : 100%
available_spare_threshold : 10%
percentage_used : 0%
data_units_read : 4,431,223
data_units_written : 2,478,131
host_read_commands : 61,773,809
host_write_commands : 50,566,880
controller_busy_time : 73
power_cycles : 19
power_on_hours : 876
unsafe_shutdowns : 16
media_errors : 0
num_err_log_entries : 0
Warning Temperature Time : 0
Critical Composite Temperature Time : 0
Thermal Management T1 Trans Count : 0
Thermal Management T2 Trans Count : 0
Thermal Management T1 Total Time : 0
Thermal Management T2 Total Time : 0
Is this a LINUX thing? Cause the OP is super unclear…
I found this page https://www.intel.com/content/www/us/en/support/articles/000056596/memory-and-storage.html
Where it describes some of the fields and there is this interesting bit:
Power-On Hours Count
The raw value reports the cumulative number of power-on hours over the life of the device.
Note: The On/Off status of the Device Initiated Power Management (DIPM) feature affects the number of hours reported.
- If DIPM is turned on, the recorded value does not include the time that the device is in a slumber state.
- If DIPM is turned off, the recorded value should match the clock time, as all three device states are counted: active , idle , and slumber .
So apparently according to this setting on Intel drives (and probably on other vendors too) it may not count “slumber” hours in the count.
Well the command he gave is a Linux command. It might exist on BSD and other Unix likes also. The nvme command kind of does everything NVMe related. It has subcommands for almost anything you want to do with an NVMe drive.
if you know the equivalent command/program to get the same info from whichever OS you run… post it.
I imagine that write/read commands are not issued while the drive is asleep either.
corsair force mp300 120GB
in my htpc for my TV
Smart Log for NVME device:nvme0n1 namespace-id:ffffffff
critical_warning : 0
temperature : 30 C
available_spare : 100%
available_spare_threshold : 50%
percentage_used : 2%
endurance group critical warning summary: 0
data_units_read : 14,770,324
data_units_written : 5,095,430
host_read_commands : 128,695,720
host_write_commands : 40,144,642
controller_busy_time : 287
power_cycles : 31
power_on_hours : 3,561
unsafe_shutdowns : 15
media_errors : 0
num_err_log_entries : 0
Warning Temperature Time : 0
Critical Composite Temperature Time : 0
Temperature Sensor 2 : 30 C
Thermal Management T1 Trans Count : 0
Thermal Management T2 Trans Count : 0
Thermal Management T1 Total Time : 0
Thermal Management T2 Total Time : 0
Samsung 960 EVO 250GiB
Smart Log for NVME device:nvme0n1 namespace-id:ffffffff
critical_warning : 0
temperature : 39 C
available_spare : 100%
available_spare_threshold : 5%
percentage_used : 0%
endurance group critical warning summary: 0
data_units_read : 1.121.097
data_units_written : 1.666.678
host_read_commands : 10.983.187
host_write_commands : 20.005.452
controller_busy_time : 83
power_cycles : 129
power_on_hours : 966
unsafe_shutdowns : 8
media_errors : 0
num_err_log_entries : 56
Warning Temperature Time : 0
Critical Composite Temperature Time : 0
Thermal Management T1 Trans Count : 0
Thermal Management T2 Trans Count : 0
Thermal Management T1 Total Time : 0
Thermal Management T2 Total Time : 0
This is from a pretty new 2TB PNY CS3030
My SX8200 PRO 1TB
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