'\" t
.\"     Title: nvme-log-self-test
.\"    Author: [FIXME: author] [see http://www.docbook.org/tdg5/en/html/author]
.\" Generator: DocBook XSL Stylesheets vsnapshot <http://docbook.sf.net/>
.\"      Date: 09/07/2026
.\"    Manual: NVMe Manual
.\"    Source: NVMe
.\"  Language: English
.\"
.TH "NVME\-LOG\-SELF\-TES" "1" "09/07/2026" "NVMe" "NVMe Manual"
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.SH "NAME"
nvme-log-self-test \- Retrieve the log information initiated by device\-self\-test and display it
.SH "SYNOPSIS"
.sp
.nf
\fInvme\fR [<global\-options>] \fIlog self\-test\fR <device>
                        [\-\-log\-entries=<entries> | \-e <entries>]
.fi
.SH "DESCRIPTION"
.sp
Retrieves the log pages from an NVMe device corresponding to the requested self\-test by the user and provides 20\-most recent result returned structure\&.
.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
On success, the returned 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 or the json format\&.
.sp
By default the log is printed out in the normal readable format\&.
.SH "OPTION"
.PP
\-e <entries>, \-\-log\-entries=<entries>
.RS 4
Specifies how many DST log entries the program should request from the device\&. This must be at least one, and shouldn\(cqt exceed the 20 entries\&. Defaults to 20 DST log entries\&.
.RE
.SH "GLOBAL OPTIONS"
.sp
The following options are defined at the top\-level nvme command and are available to this subcommand:
.PP
\-\-dry\-run
.RS 4
Print the command that would be executed, but do not actually execute it\&.
.RE
.PP
\-\-no\-ioctl\-probing
.RS 4
Disable probing for 64\-bit IOCTL support\&.
.RE
.PP
\-\-no\-retries
.RS 4
Disable retry logic on transient errors\&.
.RE
.PP
\-o <fmt>, \-\-output\-format=<fmt>
.RS 4
Set the reporting format to
\fInormal\fR,
\fItabular, \*(Aqjson\fR, or
\fIbinary\fR\&. Only one output format may be used at a time\&.
.RE
.PP
\-\-output\-format\-version=<version>
.RS 4
Select the output format version\&. Version
\fI1\fR
uses the original field naming, while version
\fI2\fR
(default) provides more consistent and script\-friendly field names\&.
.RE
.PP
\-\-timeout=<ms>
.RS 4
Set the timeout for the command in milliseconds\&.
.RE
.PP
\-v, \-\-verbose
.RS 4
Increase the level of detail in the output\&. May be specified multiple times to further increase verbosity\&.
.RE
.sp
These options can also be set as machine\-wide defaults in nvme\-cli\&.conf(5)\&. A command\-line flag always overrides the file\&.
.SH "EXAMPLES"
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
Get the self\-test\-log and print it in a human readable format:
.sp
.if n \{\
.RS 4
.\}
.nf
# nvme log self\-test /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
.\}
Print the raw output to a file:
.sp
.if n \{\
.RS 4
.\}
.nf
# nvme log self\-test /dev/nvme0 \-o "binary"
.fi
.if n \{\
.RE
.\}
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
Get the self\-test\-log and print it in a json format:
.sp
.if n \{\
.RS 4
.\}
.nf
# nvme log self\-test /dev/nvme0 \-o "json"
.fi
.if n \{\
.RE
.\}
.RE
.SH "NVME"
.sp
Part of the nvme\-user suite