Re: NVMe Health check?

["George N. White III" <gnwiii@xxxxxxxxx>]

On Thu, 14 Oct 2021 at 22:29, ToddAndMargo via users <users@xxxxxxxxxxxxxxxxxxxxxxx> wrote:

On 10/13/21 06:38, George N. White III wrote:
> Also available in fedora): nvmi-cli (upstream
> https://github.com/linux-nvme/nvme-cli)
> <https://github.com/linux-nvme/nvme-cli>
> and nvmetcli  (Configure NVMe-over-Fabrics Target).

see anything wrong?

# nvme smart-log /dev/nvme0n1
Smart Log for NVME device:nvme0n1 namespace-id:ffffffff
critical_warning                        : 0
temperature                             : 31 C
available_spare                         : 100%
available_spare_threshold               : 10%
percentage_used                         : 1%

When working properly, the drive dies when it uses up all the

"available_spare" capacity.  This report is similar to what I

see, but I only have 3 nvme drives.

https://nvmexpress.org/resources/nvm-express-technology-features/nvme-features-for-error-reporting-smart-log-pages-failures-and-management-capabilities-in-nvme-architectures/

There are failure modes other than something that

degrades over time and can be monitored.

endurance group critical warning summary: 0
data_units_read                         : 773,858,127
data_units_written                      : 38,056,140
host_read_commands                      : 2,212,795,501
host_write_commands                     : 822,976,235
controller_busy_time                    : 5,347
power_cycles                            : 1,718
power_on_hours                          : 3,405
unsafe_shutdowns                        : 63
media_errors                            : 0
num_err_log_entries                     : 1,828

I have 1,812 for num_err_log_entries on a new drive

(291 power_on_hours), so I suspect many of

these log entries come when a drive is first

installed.

 

Warning Temperature Time                : 0
Critical Composite Temperature Time     : 0
Temperature Sensor 1           : 31 C
Temperature Sensor 2           : 34 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

TLDNR:

https://nvmexpress.org/wp-content/uploads/NVMe-NVM-Express-2.0a-2021.07.26-Ratified.pdf

--

George N. White III

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