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

NAME

6       rbd-replay - replay rados block device (RBD) workloads
7

SYNOPSIS

9       rbd-replay [ options ] replay_file
10
11

DESCRIPTION

13       rbd-replay  is  a  utility for replaying rados block device (RBD) work‐
14       loads.
15

OPTIONS

17       -c ceph.conf, --conf ceph.conf
18              Use  ceph.conf  configuration  file  instead  of   the   default
19              /etc/ceph/ceph.conf   to   determine  monitor  addresses  during
20              startup.
21
22       -p pool, --pool pool
23              Interact with the given pool.  Defaults to 'rbd'.
24
25       --latency-multiplier
26              Multiplies inter-request latencies.  Default: 1.
27
28       --read-only
29              Only replay non-destructive requests.
30
31       --map-image rule
32              Add a rule to map image names in the trace to image names in the
33              replay  cluster.   A rule of image1@snap1=image2@snap2 would map
34              snap1 of image1 to snap2 of image2.
35
36       --dump-perf-counters
37              Experimental Dump performance counters to standard out before an
38              image  is  closed.   Performance counters may be dumped multiple
39              times if multiple images are closed, or if  the  same  image  is
40              opened  and  closed  multiple  times.   Performance counters and
41              their meaning may change between versions.
42

EXAMPLES

44       To replay workload1 as fast as possible:
45
46          rbd-replay --latency-multiplier=0 workload1
47
48       To replay workload1 but use test_image instead of prod_image:
49
50          rbd-replay --map-image=prod_image=test_image workload1
51

AVAILABILITY

53       rbd-replay is part of Ceph, a massively scalable, open-source, distrib‐
54       uted  storage  system.  Please  refer  to  the  Ceph  documentation  at
55       https://docs.ceph.com for more information.
56

SEE ALSO

58       rbd-replay-prep(8), rbd(8)
59

61       2010-2022, Inktank Storage, Inc. and contributors. Licensed under  Cre‐
62       ative Commons Attribution Share Alike 3.0 (CC-BY-SA-3.0)
63
64
65
66
67dev                              Oct 18, 2022                    RBD-REPLAY(8)
Impressum