rbd-replay-many - replay a rados block device (RBD) workload on several clients
rbd-replay-many [ options ] --original-image name host1 [ host2 [ ... ] ] -- rbd_replay_args
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.
- --original-image name
- Specifies the name (and snap) of the originally traced
image. Necessary for correct name mapping.
- --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.
- --exec program
- Path to the rbd-replay executable.
- --delay seconds
- Delay between starting each client. Defaults to 0.
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
is part of Ceph, a massively scalable, open-source,
distributed storage system. Please refer to the Ceph documentation at
for more information.
2010-2017, Inktank Storage, Inc. and contributors. Licensed under Creative