1RBD-NBD(8)                           Ceph                           RBD-NBD(8)
2
3
4

NAME

6       rbd-nbd - map rbd images to nbd device
7

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
12
13

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.
18

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.
24
25       --read-only
26              Map read-only.
27
28       --nbds_max *limit*
29              Override  the parameter of NBD kernel module when modprobe, used
30              to limit the count of nbd device.
31
32       --max_part *limit*
33              Override for module param nbds_max.
34
35       --exclusive
36              Forbid writes by other clients.
37
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.
42

IMAGE AND SNAP SPECS

44       image-spec is [pool-name]/image-name
45       snap-spec  is [pool-name]/image-name@snap-name
46
47
48       The default for pool-name is "rbd".  If an image name contains a  slash
49       character ('/'), pool-name is required.
50

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.
55

SEE ALSO

57       rbd(8)
58

60       2010-2021,  Inktank Storage, Inc. and contributors. Licensed under Cre‐
61       ative Commons Attribution Share Alike 3.0 (CC-BY-SA-3.0)
62
63
64
65
66dev                              Mar 18, 2021                       RBD-NBD(8)
Impressum