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NVME-SMART-LOG(1) NVMe Manual NVME-SMART-LOG(1)

NAME

nvme-smart-log - Send NVMe SMART log page request, returns result and log

SYNOPSIS

nvme [<global-options>] smart-log <device>


                        [--namespace-id=<nsid> | -n <nsid>]


                        [--raw-binary | -b]

DESCRIPTION

Retrieves the NVMe SMART log page from an NVMe device and provides the returned structure.

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 returned smart log structure may be returned in one of several ways depending on the option flags; the structure may parsed by the program and printed in a readable format or the raw buffer may be printed to stdout for another program to parse.

OPTIONS

-n <nsid>, --namespace-id=<nsid>

Retrieve the SMART log for the given nsid. This is optional and its success may depend on the device’s capabilities to provide this log on a per-namespace basis (see the NVMe Identify Controller for this capability). The default nsid to use is 0xffffffff for the device global SMART log.

-b, --raw-binary

Print the raw SMART log buffer to stdout.

GLOBAL OPTIONS

The following options are defined at the top-level nvme command and are available to this subcommand:

--dry-run

Print the command that would be executed, but do not actually execute it.

--no-ioctl-probing

Disable probing for 64-bit IOCTL support.

--no-retries

Disable retry logic on transient errors.

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

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

--output-format-version=<version>

Select the output format version. Version 1 uses the original field naming, while version 2 (default) provides more consistent and script-friendly field names.

--timeout=<ms>

Set the timeout for the command in milliseconds.

-v, --verbose

Increase the level of detail in the output. May be specified multiple times to further increase verbosity.

These options can also be set as machine-wide defaults in nvme-cli.conf(5). A command-line flag always overrides the file.

EXAMPLES

•Print the SMART log page in a human readable format: 

# nvme smart-log /dev/nvme0

•Print the raw SMART log to a file: 

# nvme smart-log /dev/nvme0 --raw-binary > smart_log.raw

It is probably a bad idea to not redirect stdout when using this mode.

NVME

Part of the nvme-user suite

07/31/2026 NVMe