'\" t
.\"     Title: nvme-io-mgmt-send
.\"    Author: [FIXME: author] [see http://www.docbook.org/tdg5/en/html/author]
.\" Generator: DocBook XSL Stylesheets vsnapshot <http://docbook.sf.net/>
.\"      Date: 09/18/2026
.\"    Manual: NVMe Manual
.\"    Source: NVMe
.\"  Language: English
.\"
.TH "NVME\-IO\-MGMT\-SEND" "1" "09/18/2026" "NVMe" "NVMe Manual"
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.SH "NAME"
nvme-io-mgmt-send \- I/O Management Send command
.SH "SYNOPSIS"
.sp
.nf
\fInvme\fR [<global\-options>] \fIio\-mgmt send\fR <device>
                        [\-\-namespace\-id=<NUM> | \-n <NUM>]
                        [\-\-mos=<NUM> | \-s <NUM>]
                        [\-\-mo=<NUM> | \-m <NUM>]
                        [\-\-data=<FILE> | \-d <FILE>]
                        [\-\-data\-len=<NUM> | \-l <NUM>]
.fi
.SH "DESCRIPTION"
.sp
For the NVMe device given, issues the I/O Management Send command with the requested management operation (mo) and management operation specific parameter (mos)\&. This is the generic interface provided for forward compatibility as new operations are added that this program isn\(cqt aware of at the time of its development\&. As such, this is a generic command that does not provide any convenience parameters to produce the binary payload\&.
.sp
The bare \fInvme io\-mgmt\-send\fR form (without a space) still works as a deprecated alias and will be removed in a future major version\&. New scripts should use \fInvme io\-mgmt send\fR instead\&.
.SH "OPTIONS"
.PP
\-n <NUM>, \-\-namespace\-id=<NUM>
.RS 4
Use the provided namespace id for the command\&. If not provided, the namespace id of the block device will be used\&. If the command is issued to a non\-block device, the parameter is required\&.
.RE
.PP
\-d <FILE>, \-\-data=<FILE>
.RS 4
File to read payload from\&. If unspecified, data will be read from the standard input stream\&.
.RE
.PP
\-l <NUM>, \-\-data\-len=<NUM>
.RS 4
Payload data buffer length
.RE
.PP
\-m <NUM>, \-\-mo <NUM>
.RS 4
Management Operation to perform\&.
.RE
.PP
\-s <NUM>, \-\-mos=<NUM>
.RS 4
Management Operation Specific parameter\&.
.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 "NVME"
.sp
Part of nvme\-cli