nvme-cli/Documentation/nvme-zns-report-zones.1

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.\"     Title: nvme-zns-report-zones
.\"    Author: [FIXME: author] [see http://www.docbook.org/tdg5/en/html/author]
.\" Generator: DocBook XSL Stylesheets vsnapshot <http://docbook.sf.net/>
.\"      Date: 04/08/2022
.\"    Manual: NVMe Manual
.\"    Source: NVMe
.\"  Language: English
.\"
.TH "NVME\-ZNS\-REPORT\-Z" "1" "04/08/2022" "NVMe" "NVMe Manual"
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.SH "NAME"
nvme-zns-report-zones \- Retrieve and display the Report Zones data structure
.SH "SYNOPSIS"
.sp
.nf
\fInvme zns report\-zones\fR <device> [\-\-namespace\-id=<NUM> | \-n <NUM>]
                                 [\-\-start\-lba=<IONUM> | \-s <IONUM>]
                                 [\-\-descs=<NUM> | \-d <NUM>]
                                 [\-\-state=<NUM> | \-S <NUM>]
                                 [\-\-extended | \-e]
                                 [\-\-partial | \-p]
                                 [\-\-verbose | \-v]
                                 [\-\-output\-format=<FMT> | \-o <FMT>]
.fi
.SH "DESCRIPTION"
.sp
For the NVMe device given, sends the Zone Management Receive command with the Zone Receive Action set to either Report Zones or Extended Report Zones, depending on the \fIextended\fR option\&.
.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 data structure returned by the device will be decoded and displayed in one of several ways\&.
.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
\-s <lba>, \-\-start\-lba=<lba>
.RS 4
The starting LBA of the zone to begin the report
.RE
.PP
\-d <NUM>, \-\-descs=<NUM>
.RS 4
The number of descriptors to request in the report\&.
.RE
.PP
\-S <NUM>, \-\-state=<NUM>
.RS 4
The state of zones to request in the report\&. Known values include:
.TS
allbox tab(:);
lt lt
lt lt
lt lt
lt lt
lt lt
lt lt
lt lt
lt lt
lt lt.
T{
Value
T}:T{
Definition
T}
T{
0
T}:T{
List all zones (default)
T}
T{
1
T}:T{
Empty State
T}
T{
2
T}:T{
Implicitly Opened State
T}
T{
3
T}:T{
Explicitly Opened State
T}
T{
4
T}:T{
Closed State
T}
T{
5
T}:T{
Full State
T}
T{
6
T}:T{
Read Only State
T}
T{
7
T}:T{
Offline State
T}
.TE
.sp 1
.RE
.PP
\-e, \-\-extended
.RS 4
Request to use the Extended Report Zones option\&. The extended data is not decoded\&.
.RE
.PP
\-p, \-\-partial
.RS 4
If set, the device will return the number of zones that match the state rather than the number of zones returned in the report\&.
.RE
.PP
\-v, \-\-verbose
.RS 4
Increase the information detail in the output\&.
.RE
.PP
\-o <format>, \-\-output\-format=<format>
.RS 4
Set the reporting format to
\fInormal\fR,
\fIjson\fR, or
\fIbinary\fR\&. Only one output format can be used at a time\&.
.RE
.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 report for 16 zones, and display the known fields in a human readable format:
.sp
.if n \{\
.RS 4
.\}
.nf
# nvme zns report\-zones /dev/nvme0 \-n 1 \-d 16
.fi
.if n \{\
.RE
.\}
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
Show the output in json format with extra details
.sp
.if n \{\
.RS 4
.\}
.nf
# nvme zns report\-zones /dev/nvme0 \-n 1 \-d 16 \-o json
.fi
.if n \{\
.RE
.\}
.RE
.SH "NVME"
.sp
Part of nvme\-cli