1RBD-NBD(8)                           Ceph                           RBD-NBD(8)
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NAME

6       rbd-nbd - map rbd images to nbd device
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SYNOPSIS

9       rbd-nbd [-c conf] [--read-only] [--device nbd device] [--nbds_max limit] [--max_part limit] [--exclusive] [--timeout seconds] map image-spec | snap-spec
10       rbd-nbd unmap nbd device
11       rbd-nbd list-mapped
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DESCRIPTION

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

20       -c ceph.conf
21              Use   ceph.conf   configuration  file  instead  of  the  default
22              /etc/ceph/ceph.conf  to  determine  monitor   addresses   during
23              startup.
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25       --read-only
26              Map read-only.
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28       --nbds_max *limit*
29              Override  the parameter of NBD kernel module when modprobe, used
30              to limit the count of nbd device.
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32       --max_part *limit*
33              Override for module param nbds_max.
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35       --exclusive
36              Forbid writes by other clients.
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38       --timeout *seconds*
39              Override device timeout. Linux kernel will default to a 30  sec‐
40              ond  request  timeout.   Allow the user to optionally specify an
41              alternate timeout.
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IMAGE AND SNAP SPECS

44       image-spec is [pool-name]/image-name
45       snap-spec  is [pool-name]/image-name@snap-name
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48       The default for pool-name is "rbd".  If an image name contains a  slash
49       character ('/'), pool-name is required.
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AVAILABILITY

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

57       rbd(8)
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60       2010-2019,  Inktank Storage, Inc. and contributors. Licensed under Cre‐
61       ative Commons Attribution Share Alike 3.0 (CC-BY-SA-3.0)
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66dev                              Dec 10, 2019                       RBD-NBD(8)
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