nvme error-log <device> [--log-entries=<entries> | -e <entries>] [--raw-binary | -b] [--output-format=<fmt> | -o <fmt>]
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.
- -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.
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.
Part of the nvme-user suite