120 lines
3.6 KiB
Groff
120 lines
3.6 KiB
Groff
'\" t
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.\" Title: nvme-ns-descs
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.\" Author: [FIXME: author] [see http://www.docbook.org/tdg5/en/html/author]
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.\" Generator: DocBook XSL Stylesheets vsnapshot <http://docbook.sf.net/>
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.\" Date: 10/31/2024
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.\" Manual: NVMe Manual
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.\" Source: NVMe
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.\" Language: English
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.\"
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.TH "NVME\-NS\-DESCS" "1" "10/31/2024" "NVMe" "NVMe Manual"
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.\" -----------------------------------------------------------------
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.\" * Define some portability stuff
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.\" -----------------------------------------------------------------
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.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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.\" http://bugs.debian.org/507673
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.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
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.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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.ie \n(.g .ds Aq \(aq
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.el .ds Aq '
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.\" -----------------------------------------------------------------
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.\" * set default formatting
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.\" -----------------------------------------------------------------
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.\" disable hyphenation
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.nh
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.\" disable justification (adjust text to left margin only)
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.ad l
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.\" -----------------------------------------------------------------
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.\" * MAIN CONTENT STARTS HERE *
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.\" -----------------------------------------------------------------
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.SH "NAME"
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nvme-ns-descs \- Send NVMe Identify for a list of Namespace Identification Descriptor structure, return result and structure
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.SH "SYNOPSIS"
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.sp
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.nf
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\fInvme ns\-descs\fR <device> [\-\-namespace\-id=<nsid> | \-n <nsid>] [\-\-raw\-binary | \-b]
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[\-\-output\-format=<fmt> | \-o <fmt>] [\-\-verbose | \-v]
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.fi
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.SH "DESCRIPTION"
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.sp
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For the NVMe device given, sends an identify for a list of namespace identification descriptor structures command and provides the result and returned structure\&.
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.sp
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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\&.
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.sp
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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\&.
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.SH "OPTIONS"
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.PP
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\-n <nsid>, \-\-namespace\-id=<nsid>
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.RS 4
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Retrieve the identify namespace identification descriptor structure for the given nsid\&. This is required for the character devices, or overrides the block nsid if given\&.
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.RE
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.PP
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\-b, \-\-raw\-binary
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.RS 4
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Print the raw buffer to stdout\&. Structure is not parsed by program\&.
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.RE
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.PP
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\-o <fmt>, \-\-output\-format=<fmt>
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.RS 4
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Set the reporting format to
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\fInormal\fR,
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\fIjson\fR
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or
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\fIbinary\fR\&. Only one output format can be used at a time\&.
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.RE
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.PP
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\-v, \-\-verbose
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.RS 4
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Increase the information detail in the output\&.
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.RE
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.SH "EXAMPLES"
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.sp
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.RS 4
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.ie n \{\
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\h'-04'\(bu\h'+03'\c
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.\}
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.el \{\
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.sp -1
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.IP \(bu 2.3
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.\}
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If using the character device or overriding namespace #2:
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.sp
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.if n \{\
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.RS 4
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.\}
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.nf
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# nvme ns\-descs /dev/nvme0 \-n 1
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# nvme ns\-descs /dev/nvme0n1 \-n 2
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# nvme ns\-descs /dev/nvme0 \-\-namespace\-id=1
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.fi
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.if n \{\
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.RE
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.\}
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.RE
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.sp
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.RS 4
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.ie n \{\
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\h'-04'\(bu\h'+03'\c
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.\}
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.el \{\
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.sp -1
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.IP \(bu 2.3
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.\}
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Have the program return the raw structure in binary:
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.sp
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.if n \{\
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.RS 4
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.\}
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.nf
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# nvme ns\-descs /dev/nvme0n1 \-\-raw\-binary > ns_descs\&.raw
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# nvme ns\-descs /dev/nvme0n1 \-b > ns_descs\&.raw
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.fi
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.if n \{\
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.RE
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.\}
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.sp
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It is probably a bad idea to not redirect stdout when using this mode\&.
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.RE
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.SH "NVME"
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.sp
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Part of the nvme\-user suite
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