NAME

       nvme-persistent-event-log - Send NVMe persistent event log page request, returns result
       and log

SYNOPSIS

       nvme persistent-event-log <device> [--action=<action> | -a <action>]
                   [--log-len=<log-len> | -l <log-len>]
                   [--raw-binary | -b]
                   [--output-format=<fmt> | -o <fmt>]

DESCRIPTION

       Retrieves the NVMe persistent event 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 persistent event 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

       -a <action>, --action=<action>
           While try to retrieve this log action the controller shall take during processing this
           persistent log page command. This mandatory field, based on the value issued it may
           Read Log Data, Establish Context and Read Log Data or Release Context can occur. For
           More details see NVM Express 1.4 Spec. Section 5.14.1.13 Persistent Event Log (Log
           Identifier 0Dh)

       -l <log-len>, --log-len=<log-len>
           Allocates a buffer of <log-len> bytes size and requests this many bytes be returned in
           the constructed NVMe command. This param is mandatory. If <log-len> given is 0 and
           action is 0, it will read the Total Log Length(TLL) of the page.

       -b, --raw-binary
           Print the raw persistent event 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

       •   Print the persistent event log page in a human readable format:

               # nvme persistent-event-log /dev/nvme0

       •   Print the raw persistent event log to a file:

               # nvme persistent-event-log /dev/nvme0 --raw-binary > persistent_log.raw

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

NVME

       Part of the nvme-user suite