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