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