'\" t
.\"     Title: nvme-id-nvm-ns-lba-format
.\"    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\-ID\-NVM\-NS\-L" "1" "09/07/2026" "NVMe" "NVMe Manual"
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.SH "NAME"
nvme-id-nvm-ns-lba-format \- Send NVMe Identify NVM Command Set specific Namespace data structure for specified LBA format, display structure
.SH "SYNOPSIS"
.sp
.nf
\fInvme\fR [<global\-options>] \fIid nvm\-ns\-lba\-format\fR <device>
                        [\-\-uuid\-index=<uuid\-index> | \-U <uuid_index>]
                        [\-\-lba\-format\-index=<lba_format_index> | \-i <lba_format_index>]
.fi
.SH "DESCRIPTION"
.sp
Identify NVM Command Set specific Namespace data structure for the specified LBA format index for the NVM Command Set specified in the CSI field\&.
.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 structure may be returned in one of several ways depending on the option flags; the structure may be parsed by the program or the raw buffer may be printed to stdout\&.
.SH "OPTIONS"
.PP
\-U <uuid\-index>, \-\-uuid\-index=<uuid\-index>
.RS 4
UUID Index of the feature
.RE
.PP
\-i <lba_format_index>, \-\-lba\-format\-index=<lba_format_index>
.RS 4
This field specifies the index into the LBA Format list identifying the LBA Format capabilities that are to be returned
.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
.\}
Has the program interpret the returned buffer and display the known fields in a human readable format:
.sp
.if n \{\
.RS 4
.\}
.nf
# nvme id nvm\-ns\-lba\-format /dev/nvme0n1 \-i 0
.fi
.if n \{\
.RE
.\}
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
Have the program return the raw structure in binary:
.sp
.if n \{\
.RS 4
.\}
.nf
# nvme id nvm\-ns\-lba\-format /dev/nvme0 \-i 0 \-o binary > nvm_id_ns\&.raw
# nvme id nvm\-ns\-lba\-format /dev/nvme0n1 \-i 0 \-\-output\-format=binary > nvm_id_ns\&.raw
.fi
.if n \{\
.RE
.\}
.RE
.SH "NVME"
.sp
Part of the nvme\-user suite