NAME

       rbd-nbd - map rbd images to nbd device

SYNOPSIS

       rbd-nbd [-c conf] [--read-only] [--device nbd device] [--nbds_max limit] [--max_part limit] [--exclusive] map image-spec | snap-spec
       rbd-nbd unmap nbd device
       rbd-nbd list-mapped

DESCRIPTION

       rbd-nbd  is a client for RADOS block device (rbd) images like rbd kernel module.  It will map a rbd image
       to a nbd (Network Block Device) device, allowing access it as regular local block device.

OPTIONS

       -c ceph.conf
              Use ceph.conf configuration file instead of the default /etc/ceph/ceph.conf to  determine  monitor
              addresses during startup.

       --read-only
              Map read-only.

       --nbds_max *limit*
              Override the parameter of NBD kernel module when modprobe, used to limit the count of nbd device.

       --max_part *limit*
              Override for module param nbds_max.

       --exclusive
              Forbid writes by other clients.

IMAGE AND SNAP SPECS

       image-spec is [pool-name]/image-name
       snap-spec  is [pool-name]/image-name@snap-name

       The  default  for  pool-name  is  "rbd".  If an image name contains a slash character ('/'), pool-name is
       required.

AVAILABILITY

       rbd-nbd is part of Ceph, a massively scalable, open-source, distributed storage system. Please  refer  to
       the Ceph documentation at http://ceph.com/docs for more information.

SEE ALSO

       rbd(8)

COPYRIGHT

       2010-2023,  Inktank  Storage,  Inc.  and  contributors. Licensed under Creative Commons Attribution Share
       Alike 3.0 (CC-BY-SA-3.0)