SYNOPSIS

nvme error-log <device>  [--log-entries=<entries> | -e <entries>]
                         [--raw-binary | -b]
                         [--output-format=<fmt> | -o <fmt>]

DESCRIPTION

Retrieves NVMe Error 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 error 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

-e <entries>
--log-entries=<entries>

Specifies how many log entries the program should request from the device. This must be at least one, and shouldn’t exceed the device’s capabilities. Defaults to 64 log entries.

-b
--raw-binary

Print the raw error 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.

EXAMPLES

  • Get the error log and print it in a human readable format: 

    # nvme error-log /dev/nvme0

  • Print the raw output to a file: 

    # nvme error-log /dev/nvme0 --raw-binary > error_log.raw

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

NVME

Part of the nvme-user suite