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NVME-ZNS-REPORT-Z(1) NVMe Manual NVME-ZNS-REPORT-Z(1)

NAME

nvme-zns-report-zones - Retrieve and display the Report Zones data structure

SYNOPSIS

nvme [<global-options>] zns report-zones <device>


                                 [--namespace-id=<NUM> | -n <NUM>]


                                 [--start-lba=<IONUM> | -s <IONUM>]


                                 [--descs=<NUM> | -d <NUM>]


                                 [--state=<NUM> | -S <NUM>]


                                 [--extended | -e]


                                 [--partial | -p]

DESCRIPTION

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 extended option.

The <device> parameter is mandatory and may be either the NVMe character device (ex: /dev/nvme0), or a namespace block device (ex: /dev/nvme0n1).

On success, the data structure returned by the device will be decoded and displayed in one of several ways.

OPTIONS

-n <NUM>, --namespace-id=<NUM>

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.

-s <lba>, --start-lba=<lba>

The starting LBA of the zone to begin the report

-d <NUM>, --descs=<NUM>

The number of descriptors to request in the report.

-S <NUM>, --state=<NUM>

The state of zones to request in the report. Known values include:
Value Definition
0 List all zones (default)
1 Empty State
2 Implicitly Opened State
3 Explicitly Opened State
4 Closed State
5 Full State
6 Read Only State
7 Offline State

-e, --extended

Request to use the Extended Report Zones option. The extended data is not decoded.

-p, --partial

If set, the device will return the number of zones that match the state rather than the number of zones returned in the report.

GLOBAL OPTIONS

The following options are defined at the top-level nvme command and are available to this subcommand:

--dry-run

Print the command that would be executed, but do not actually execute it.

--no-ioctl-probing

Disable probing for 64-bit IOCTL support.

--no-retries

Disable retry logic on transient errors.

-o <fmt>, --output-format=<fmt>

Set the reporting format to normal, tabular, 'json, or binary. Only one output format may be used at a time.

--output-format-version=<version>

Select the output format version. Version 1 uses the original field naming, while version 2 (default) provides more consistent and script-friendly field names.

--timeout=<ms>

Set the timeout for the command in milliseconds.

-v, --verbose

Increase the level of detail in the output. May be specified multiple times to further increase verbosity.

These options can also be set as machine-wide defaults in nvme-cli.conf(5). A command-line flag always overrides the file.

EXAMPLES

•Has the program interpret the report for 16 zones, and display the known fields in a human readable format: 

# nvme zns report-zones /dev/nvme0 -n 1 -d 16

•Show the output in json format with extra details 

# nvme zns report-zones /dev/nvme0 -n 1 -d 16 -o json

NVME

Part of nvme-cli

07/31/2026 NVMe