---
name: "nvme-id-ns-list"
section: "1"
platform: "linux"
package: "nvme-cli"
version: "3.2-1"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/nvme-id-ns-list"
---

# nvme-id-ns-list(1)

Send NVMe Identify List Namespaces, return result and structure

## NAME

nvme-id-ns-list - Send NVMe Identify List Namespaces, return result and structure

## SYNOPSIS

```
nvme [<global-options>] id ns-list <device> [--namespace-id=<nsid> | -n <nsid>]
                        [--csi=<command_set_identifier> | -y
                        <command_set_identifier>]
                        [--all | -a]
```

## DESCRIPTION

For the NVMe device given, sends an identify command for namespace list and provides the result and returned structure.

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 starting namespace in the list always begins with 0 unless the '--namespace-id' option is given to override.

On success, the namespace array is printed for each index and nsid for a valid nsid.

## OPTIONS

- \-n \<nsid\>, --namespace-id=\<nsid\>

  Retrieve the identify list structure starting with the given nsid. The broadcast value 0xffffffff can also be given as *all* or *-1*.

- \-y \<command\_set\_identifier\>, --csi=\<command\_set\_identifier\>

  If this value is given, retrieve the identify list structure associated with the specified I/O command set.

- \-a, --all

  Retrieve the identify list structure for all namespaces in the subsystem, whether attached or inactive.

## 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. Other versions are rejected.

- \--quiet

  Suppress informational messages. Errors are still reported, and --quiet cancels any --verbose for the library log level.

- \--set-options=\<key=value\>\[,\<key=value\>...\]

  Set libnvme library options for this invocation. Supported keys are *force-4k*, *mi-probe-enabled*, *test-base-dir* and *test-sysfs-dir*.

- \--timeout=\<ms\>

  Set the timeout for the command in milliseconds. *infinite* or *-1* waits without a time limit (0xffffffff).

- \-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)](/nvme-cli.conf/5.md). A command-line flag always overrides the file.

## EXAMPLES

• Print the namespaces present for zoned command set in JSON format

```
# nvme id ns-list /dev/nvme0 -y 2 -a -o json
```

• Print the namespaces present for NVM Command Set in normal format

```
# nvme id ns-list /dev/nvme0
```

## NVME

Part of the nvme-user suite