1RBD-REPLAY-MANY(8)                   Ceph                   RBD-REPLAY-MANY(8)
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NAME

6       rbd-replay-many - replay a rados block device (RBD) workload on several
7       clients
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SYNOPSIS

10       rbd-replay-many [ options ] --original-image name host1 [ host2 [ ... ] ] -- rbd_replay_args
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DESCRIPTION

14       rbd-replay-many is a utility for replaying a rados block  device  (RBD)
15       workload  on  several clients.  Although all clients use the same work‐
16       load, they replay against separate images.  This matches normal use  of
17       librbd, where each original client is a VM with its own image.
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19       Configuration and replay files are not automatically copied to clients.
20       Replay images must already exist.
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OPTIONS

23       --original-image name
24              Specifies the name (and snap) of the  originally  traced  image.
25              Necessary for correct name mapping.
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27       --image-prefix prefix
28              Prefix  of  image  names  to  replay  against.  Specifying --im‐
29              age-prefix=foo  results  in  clients  replaying  against  foo-0,
30              foo-1, etc.  Defaults to the original image name.
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32       --exec program
33              Path to the rbd-replay executable.
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35       --delay seconds
36              Delay between starting each client.  Defaults to 0.
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EXAMPLES

39       Typical usage:
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41          rbd-replay-many host-0 host-1 --original-image=image -- -c ceph.conf replay.bin
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43       This results in the following commands being executed:
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45          ssh host-0 'rbd-replay' --map-image 'image=image-0' -c ceph.conf replay.bin
46          ssh host-1 'rbd-replay' --map-image 'image=image-1' -c ceph.conf replay.bin
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AVAILABILITY

49       rbd-replay-many  is  part  of  Ceph, a massively scalable, open-source,
50       distributed storage system. Please refer to the Ceph  documentation  at
51       http://ceph.com/docs for more information.
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SEE ALSO

54       rbd-replay(8), rbd(8)
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57       2010-2021,  Inktank Storage, Inc. and contributors. Licensed under Cre‐
58       ative Commons Attribution Share Alike 3.0 (CC-BY-SA-3.0)
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63dev                              May 13, 2021               RBD-REPLAY-MANY(8)
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