'\" t
.\"     Title: nvme-copy
.\"    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\-COPY" "1" "09/18/2026" "NVMe" "NVMe Manual"
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.SH "NAME"
nvme-copy \- Send an NVMe Simple Copy command, provide results
.SH "SYNOPSIS"
.sp
.nf
\fInvme\fR [<global\-options>] \fIcopy\fR <device>
                        [\-\-namespace\-id=<nsid> | \-n <nsid>]
                        [\-\-sdlba=<sdlba> | \-d <sdlba>]
                        [\-\-blocks=<nlb\-list,> | \-b <nlb\-list,>]
                        [\-\-slbs=<slbas,> | \-s <slbas,>]
                        [\-\-snsids=<snsids,> | \-N <snsids,>]
                        [\-\-sopts=<sopts,> | \-O <sopts,>]
                        [\-\-limited\-retry | \-l]
                        [\-\-force\-unit\-access | \-f]
                        [\-\-prinfow=<prinfow> | \-p <prinfow>]
                        [\-\-prinfor=<prinfor> | \-P <prinfor>]
                        [\-\-ref\-tag=<reftag> | \-r <reftag>]
                        [\-\-expected\-ref\-tags=<reftag,> | \-R <reftag,>]
                        [\-\-app\-tag=<apptag> | \-a <apptag>]
                        [\-\-expected\-app\-tags=<apptag,> | \-A <apptag,>]
                        [\-\-app\-mask=<appmask> | \-m <appmask>]
                        [\-\-expected\-app\-masks=<appmask,> | \-M <appmask,>]
                        [\-\-dir\-type=<type> | \-T <type>]
                        [\-\-dir\-spec=<spec> | \-S <spec>]
                        [\-\-format=<entry\-format> | \-F <entry\-format>]
.fi
.SH "DESCRIPTION"
.sp
The Copy command is used by the host to copy data from one or more source logical block ranges to a single consecutive destination logical block range\&.
.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)\&. If the character device is given, the \*(Aq\-\-namespace\-id\*(Aq option is mandatory, otherwise it will use the ns\-id of the namespace for the block device you opened\&. For block devices, the ns\-id used can be overridden with the same option\&.
.SH "OPTIONS"
.PP
\-n <nsid>, \-\-namespace\-id=<nsid>
.RS 4
Sends the command with the requested nsid\&. This is required for the character devices, or overrides the block nsid if given\&.
.RE
.PP
\-d <sdlba>, \-\-sdlba=<sdlba>
.RS 4
64\-bit addr of first destination logical block
.RE
.PP
\-b <nlb\-list,>, \-\-blocks=<nlb\-list,>
.RS 4
Comma separated list of the number of blocks in each range
.RE
.PP
\-s <slbas,>, \-\-slbs=<slbas,>
.RS 4
Comma separated list of the starting blocks in each range
.RE
.PP
\-\-snsids=<snsids,>, \-N <snsids,>
.RS 4
Comma separated list of the source namespace identifiers in each range
.RE
.PP
\-\-sopts=<sopts,>, \-O <sopts,>
.RS 4
Comma separated list of the source options in each range
.RE
.PP
\-l, \-\-limited\-retry
.RS 4
Sets the limited retry flag\&.
.RE
.PP
\-f, \-\-force\-unit\-access
.RS 4
Set the force\-unit access flag\&.
.RE
.PP
\-p <prinfow>, \-\-prinfow=<prinfow>
.RS 4
Protection Information field write definition\&.
.RE
.PP
\-P <prinfor>, \-\-prinfor=<prinfor>
.RS 4
Protection Information field read definition\&.
.RE
.PP
\-r <reftag>, \-\-ref\-tag=<reftag>
.RS 4
initial lba reference tag\&.
.RE
.PP
\-R <reftag,>, \-\-expected\-ref\-tags=<reftag,>
.RS 4
expected lba reference tags (comma\-separated list)\&.
.RE
.PP
\-a <apptag>, \-\-app\-tag=<apptag>
.RS 4
lba app tag
.RE
.PP
\-A <apptag,>, \-\-expected\-app\-tags=<apptag,>
.RS 4
expected lba app tags (comma\-separated list)
.RE
.PP
\-m <appmask>, \-\-app\-mask=<appmask>
.RS 4
lba tag mask
.RE
.PP
\-M <appmask,>, \-\-expected\-app\-masks=<appmask,>
.RS 4
expected lba tag masks (comma\-separated list)
.RE
.PP
\-T <type>, \-\-dir\-type=<type>
.RS 4
Optional directive type\&. The nvme\-cli only enforces the value be in the defined range for the directive type, though the NVMe specification (1\&.3a) defines only one directive, 01h, for write stream identifiers\&.
.RE
.PP
\-S <spec>, \-\-dir\-spec=<spec>
.RS 4
Optional field for directive specifics\&. When used with write streams, this value is defined to be the write stream identifier\&. The nvme\-cli will not validate the stream requested is within the controller\(cqs capabilities\&.
.RE
.PP
\-F <entry\-format>, \-\-format=<entry\-format>
.RS 4
source range entry format
.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
No examples yet\&.
.SH "NVME"
.sp
Part of the nvme\-user suite