NVME-NS-GET-ID(1) NVMe Manual NVME-NS-GET-ID(1)

nvme-ns-get-id - Retrieves the namespace ID for an NVMe block device

nvme [<global-options>] ns get-id <device>

Retrieves the namespace ID for an NVMe block device. The <device> param is mandatory and must be an NVMe block device (ex: /dev/nvme0n1).

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.

•Shows the namespace id for the given block device: 
# nvme ns get-id /dev/nvme0n1

Part of the nvme-user suite

09/07/2026 NVMe