nvme-cli/Documentation/nvme-ocp-internal-log.1

'\" t
.\"     Title: nvme-ocp-internal-log
.\"    Author: [FIXME: author] [see http://www.docbook.org/tdg5/en/html/author]
.\" Generator: DocBook XSL Stylesheets vsnapshot <http://docbook.sf.net/>
.\"      Date: 10/31/2024
.\"    Manual: NVMe Manual
.\"    Source: NVMe
.\"  Language: English
.\"
.TH "NVME\-OCP\-INTERNAL\" "1" "10/31/2024" "NVMe" "NVMe Manual"
.\" -----------------------------------------------------------------
.\" * Define some portability stuff
.\" -----------------------------------------------------------------
.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
.\" http://bugs.debian.org/507673
.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
.ie \n(.g .ds Aq \(aq
.el       .ds Aq '
.\" -----------------------------------------------------------------
.\" * set default formatting
.\" -----------------------------------------------------------------
.\" disable hyphenation
.nh
.\" disable justification (adjust text to left margin only)
.ad l
.\" -----------------------------------------------------------------
.\" * MAIN CONTENT STARTS HERE *
.\" -----------------------------------------------------------------
.SH "NAME"
nvme-ocp-internal-log \- Conditionally retrieves 07h Telemetry Host\-Initiated log, C9h OCP Strings Log from an NVMe device or from user\-specified file path\&. Takes retrieved logs and decodes into human\-readable output format specified by user\&.
.SH "SYNOPSIS"
.sp
.nf
\fInvme ocp internal\-log\fR <device>
                        [\-\-telemetry\-log=<file> | \-l <file>]
                        [\-\-string\-log=<file> | \-s <file>]
                        [\-\-output\-file=<file> | \-o <file>]
                        [\-\-output\-format=<fmt> | \-f <fmt>]
                        [\-\-data\-area=<da> | \-a <da>]
                        [\-\-telemetry\-type=<type> | \-t <type>]
.fi
.SH "DESCRIPTION"
.sp
Conditionally retrieves 07h Telemetry Host\-Initiated log, C9h OCP Strings Log from an NVMe device or from user\-specified file path\&. Takes retrieved logs and decodes (or) parses into human\-readable output format specified by user\&.
.sp
The <device> parameter is mandatory and may be either the NVMe character device (ex: /dev/nvme0), or a namespace block device (ex: /dev/nvme0n1)\&.
.sp
This will only work on OCP compliant devices supporting this feature\&. Results for any other device are undefined\&.
.sp
On success it returns 0, error code otherwise\&.
.SH "OPTIONS"
.PP
\-l <file>, \-\-telemetry\-log=<file>
.RS 4
File name to existing Telemetry Host\-Initiated raw binary data to be used\&. If no path is specified, a live retrieval of payload on <device> will be performed\&.
.RE
.PP
\-s <file>, \-\-string\-log=<file>
.RS 4
File name to existing OCP String Log raw binary data to be used\&. If no path is specified, a live retrieval of payload on <device> will be performed\&.
.RE
.PP
\-o <file>, \-\-output\-file=<file>
.RS 4
Filepath name to where human\-readable output data will be saved to\&.
.RE
.PP
\-f <fmt>, \-\-output\-format=<fmt>
.RS 4
Set the reporting format to
\fInormal\fR,
\fIjson\fR\&. Only one output format can be used at a time, the default value is
\fIjson\fR\&.
.RE
.PP
\-a <da>, \-\-data\-area=<da>
.RS 4
Retrieves the specific data area requested\&. Valid inputs are 1,2\&. If this option is not specified, the default value is 1\&.
.RE
.PP
\-t <type>, \-\-telemetry\-type=<type>
.RS 4
If set to 1, controller shall capture the Telemetry Host\-Initiated data representing the internal state of the controller at the time the associated Get Log Page command is processed\&. If cleared to 0, controller shall not update this data\&.
.RE
.SH "EXAMPLES"
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
Retrieve in both OCP String Log and Telemetry Host\-Initiated Log from device\&. Decode default data\-area(s) in default format and output to console\&.
.sp
.if n \{\
.RS 4
.\}
.nf
# nvme ocp internal\-log /dev/nvme0
.fi
.if n \{\
.RE
.\}
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
Retrieve Telemetry Host\-Initiated data, reads in the OCP String Log locally\&. Decode default data\-area(s) in default format\&.
.sp
.if n \{\
.RS 4
.\}
.nf
# nvme ocp internal\-log /dev/nvme0 \-\-string\-log=ocp_string_log\&.bin
 \-\-output\-file=output_file\&.json
.fi
.if n \{\
.RE
.\}
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
Retrieve OCP String Log, reads in the Telemetry Host\-Initiated Log locally\&. Decode data\-areas 1 and 2, and output in json format\&.
.sp
.if n \{\
.RS 4
.\}
.nf
# nvme ocp internal\-log /dev/nvme0 \-\-telemetry\-log=host_telemetry\&.bin
 \-\-output\-format=json \-\-output\-file=output_file\&.json \-\-data\-area=2
.fi
.if n \{\
.RE
.\}
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
Reads in both OCP String Log and Telemetry Host\-Initiated Log locally\&. Decode data\-areas 1 and 2, and output in normal text format\&.
.sp
.if n \{\
.RS 4
.\}
.nf
# nvme ocp internal\-log /dev/nvme0 \-\-string\-log=ocp_string_log\&.bin
 \-\-telemetry\-log=host_telemetry\&.bin \-\-output\-format=normal
 \-\-output\-file=output_file\&.txt \-\-data\-area=2
.fi
.if n \{\
.RE
.\}
.RE
.SH "NVME"
.sp
Part of the nvme\-user suite