X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=src%2Fceph%2Fdoc%2Fman%2F8%2Frbd-replay-many.rst;fp=src%2Fceph%2Fdoc%2Fman%2F8%2Frbd-replay-many.rst;h=5fb93498a2372ab77e5dc81849867a603c97d827;hb=812ff6ca9fcd3e629e49d4328905f33eee8ca3f5;hp=0000000000000000000000000000000000000000;hpb=15280273faafb77777eab341909a3f495cf248d9;p=stor4nfv.git diff --git a/src/ceph/doc/man/8/rbd-replay-many.rst b/src/ceph/doc/man/8/rbd-replay-many.rst new file mode 100644 index 0000000..5fb9349 --- /dev/null +++ b/src/ceph/doc/man/8/rbd-replay-many.rst @@ -0,0 +1,73 @@ +: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 `\(8), +:doc:`rbd `\(8)