nvme-solidigm-latency-tracking-log(1)

# nvme-solidigm-latency-tracking-log(1) Manual Page

## NAME

nvme-solidigm-latency-tracking-log - Enable/Retrieve Latency tracking Log

## SYNOPSIS

    nvme solidigm latency-tracking-log <device> [--enable | -e] [--disable | -d]
                                                  [--read | -r] [--write | -w]
                                                  [--type <value> | -t <value>]
                                                  [--output-format=<fmt> | -o <fmt>]

## DESCRIPTION

Enables, disables, or retrieves the Solidigm latency tracking log for the given NVMe device. This log provides detailed information about I/O latencies.

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

## OPTIONS

-e
--enable

  Enable latency tracking before retrieving the log.

-d
--disable

  Disable latency tracking after retrieving the log.

-r
--read

  Retrieve read latency statistics (default if neither --read nor --write is specified).

-w
--write

  Retrieve write latency statistics.

-t <value>
--type <value>

  Specify the log type to retrieve. Valid values depend on the device’s capabilities.

-o <fmt>
--output-format=<fmt>

  Set the reporting format to normal, json, or binary. Only one output format can be used at a time.

## EXAMPLES

- Enable latency tracking and retrieve the read latency log:

      # nvme solidigm latency-tracking-log /dev/nvme0 --enable --read

- Retrieve the write latency log in JSON format:

      # nvme solidigm latency-tracking-log /dev/nvme0 --write -o json

- Disable latency tracking after retrieving the log:

      # nvme solidigm latency-tracking-log /dev/nvme0 --disable

- Specify a log type when retrieving latency statistics:

      # nvme solidigm latency-tracking-log /dev/nvme0 --type 1 --read

## NVME

Part of the nvme-user suite