nvme-virtium-save-smart-to-vtview-log - Man Page

nvme virtium save-smart-to-vtview-log <device> [--run-time=<NUM> | -r <NUM>]
                        [--freq=<NUM> | -f <NUM>]
                        [--output-file=<FILE> | -o <FILE>]
                        [--test-name=<NAME> | -n <NAME>]

This command automates the process of collecting SMART data periodically and saving the data in a ready-to-analyze format​. Each entry is saved with timestamp and in csv format​. Users can use excel to analyze the data​. Some examples of use cases are collecting SMART data for temperature characterization, data to calculate endurance, or collecting SMART data during a test or during normal operation​.

The <device> parameter is mandatory and may be either the NVMe character device (ex: /dev/nvme0), or a namespace block device (ex: /dev/nvme0n1)​.

On success, the command generates a log file, which contains an entry for identify device (current features & settings) and periodic entries of SMART data​.

This command runs for the time specified by the option <run-time>, and collects SMART data at the frequency specified by the option <freq>​. If the output file name is not specified, this command will generate a file name that include model string and serial number of the device​.

If the test-name option is specified, it will be recorded in the log file and be used as part of the log file name​.

-r <NUM>, --run-time=<NUM>

(optional) Number of hours to log data (default = 20 hours)

-f <NUM>, --freq=<NUM>

(optional) How often you want to log SMART data (0​.25 = 15', 0​.5 = 30', 1 = 1 hour, 2 = 2 hours, etc​.)​. Default = 10 hours​.

-o <FILE>, --output-file=<FILE>

(optional) Name of the log file (give it a name that easy for you to remember what the test is)​. You can leave it blank too, the file name will be generated as <model string>-<serial number>-<test name>​.txt​.

-n <NAME>, --test-name=<NAME>

(optional) Name of the test you are doing​. We use this string as part of the name of the log file​.

• Temperature characterization:

  # nvme virtium save-smart-to-vtview-log /dev/yourDevice --run-time=100 --record-frequency=0​.25 --test-name=burn-in-at-(-40)

• Endurance testing:

  # nvme virtium save-smart-to-vtview-log /dev/yourDevice --run-time=100 --record-frequency=1 --test-name=Endurance-test-JEDEG-219-workload

• Just logging: Default logging is run for 20 hours and log every 10 hours​.

  # nvme virtium save-smart-to-vtview-log /dev/yourDevice

Part of the nvme-user suite

nvme(1).