NVME-NS-ATTACH(1)                 NVMe Manual                NVME-NS-ATTACH(1)

NAME
       nvme-ns-attach - Send NVMe attach namespace, return result.

SYNOPSIS
       nvme [<global-options>] ns attach <device>
                               [--namespace-id=<nsid> | -n <nsid>]
                               [--controllers=<ctrl-list,> | -c <ctrl-list,>]

DESCRIPTION
       For the NVMe device given, sends the nvme namespace attach command for
       the provided namespace identifier, attaching to the provided list of
       controller identifiers.

       The <device> parameter is mandatory NVMe character device (ex:
       /dev/nvme0) but not a namespace block device (ex: /dev/nvme0n1).

OPTIONS
       -n <nsid>, --namespace-id=<nsid>
           The namespace identifier to attach but not attached already.

       -c <ctrl-list,>, --controllers=<ctrl-list,>
           The comma separated list of controller identifiers to attach the
           namespace to. If no list is provided, the namespace will be
           attached to the <device> controller used for this command.

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
           Attach namespace 2 to the controllers with id 0x21 and 0x22:

           # nvme ns attach /dev/nvme1 -n 0x2 -c 0x21,0x22

           Attach namespace 3 to nvme0:

           # nvme ns attach /dev/nvme0 -n 3

NVME
       Part of the nvme-user suite

NVMe                              09/07/2026                 NVME-NS-ATTACH(1)