nvme-list-ns - Man Page

nvme list-ns <device> [--namespace-id=<nsid> | -n <nsid>]
                        [--csi=<command_set_identifier> | -y <command_set_identifier>]
                        [--all | -a]
                        [--output-format=<fmt> | -o <fmt>] [--verbose | -v]
                        [--timeout=<timeout> | -t <timeout>]

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.

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

Retrieve the identify list structure starting with the given nsid.

-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.

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

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

-v,  --verbose

Increase the information detail in the output.

-t <timeout>, --timeout=<timeout>

Override default timeout value. In milliseconds.

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

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

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

  # nvme list-ns /dev/nvme0

Part of the nvme-user suite

nvme(1).