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

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

SYNOPSIS
--------
[verse]
'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