NVME-VIRT-MGMT(1)                 NVMe Manual                NVME-VIRT-MGMT(1)

NAME
       nvme-virt-mgmt - Manage flexible resources between primary and
       secondary controller

SYNOPSIS
       nvme [<global-options>] virt-mgmt <device> [--cntlid=<cntlid> | -c <cntlid>]
                               [--rt=<rt> | -r <rt>] [--act=<act> | -a <act>]
                               [--nr=<nr> | -n <nr>]

DESCRIPTION
       Manage flexible resources between primary and secondary controller,
       return results.

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

       On success it returns 0, error code otherwise.

OPTIONS
       -c <cntlid>, --cntlid=<cntlid>
           Controller identifier (CNTLID)

       -r <rt>, --rt=<rt>
           Resource Type (RT): [0,1] 0h: VQ Resources 1h: VI Resources

       -a <act>, --act=<act>
           Action(ACT): [1,7,8,9] 1h: Primary Flexible 7h: Secondary Offline
           8h: Secondary Assign 9h: Secondary Online

       -n <nr>, --nr=<nr>
           Number of controller resources (NR)

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). A command-line flag always overrides the file.

EXAMPLES
       o   Has the program issue a virt-mgmt to manage flexible resources.

               # nvme virt-mgmt /dev/nvme0 -c 0 -r 1 -a 1 -n 0

NVME
       Part of the nvme-user suite.

NVMe                              10/30/2026                 NVME-VIRT-MGMT(1)