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-:orphan:
-
-==================================================================================
- rbd-replay-many -- replay a rados block device (RBD) workload on several clients
-==================================================================================
-
-.. program:: rbd-replay-many
-
-Synopsis
-========
-
-| **rbd-replay-many** [ *options* ] --original-image *name* *host1* [ *host2* [ ... ] ] -- *rbd_replay_args*
-
-
-Description
-===========
-
-**rbd-replay-many** is a utility for replaying a rados block device (RBD) workload on several clients.
-Although all clients use the same workload, they replay against separate images.
-This matches normal use of librbd, where each original client is a VM with its own image.
-
-Configuration and replay files are not automatically copied to clients.
-Replay images must already exist.
-
-
-Options
-=======
-
-.. option:: --original-image name
-
- Specifies the name (and snap) of the originally traced image.
- Necessary for correct name mapping.
-
-.. option:: --image-prefix prefix
-
- Prefix of image names to replay against.
- Specifying --image-prefix=foo results in clients replaying against foo-0, foo-1, etc.
- Defaults to the original image name.
-
-.. option:: --exec program
-
- Path to the rbd-replay executable.
-
-.. option:: --delay seconds
-
- Delay between starting each client. Defaults to 0.
-
-
-Examples
-========
-
-Typical usage::
-
- rbd-replay-many host-0 host-1 --original-image=image -- -c ceph.conf replay.bin
-
-This results in the following commands being executed::
-
- ssh host-0 'rbd-replay' --map-image 'image=image-0' -c ceph.conf replay.bin
- ssh host-1 'rbd-replay' --map-image 'image=image-1' -c ceph.conf replay.bin
-
-
-Availability
-============
-
-**rbd-replay-many** 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
-========
-
-:doc:`rbd-replay <rbd-replay>`\(8),
-:doc:`rbd <rbd>`\(8)