DOKK / manpages / debian 11 / nvme-cli / nvme-smart-log.1.en
NVME-SMART-LOG(1) NVMe Manual NVME-SMART-LOG(1)

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

nvme smart-log <device> [--namespace-id=<nsid> | -n <nsid>]


                        [--raw-binary | -b]


                        [--output-format=<fmt> | -o <fmt>]

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.

-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.

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

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

•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.

Part of the nvme-user suite

04/24/2020 NVMe