RBD-REPLAY - Online Linux Manual PageSection : 8
Updated : Mar 31, 2021
Source : dev
Note : Ceph

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NAMErbd-replay − replay rados block device (RBD) workloads

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SYNOPSISrbd−replay [ options ] replay_file

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DESCRIPTIONrbd−replay is a utility for replaying rados block device (RBD) workloads.

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OPTIONS −c ceph.conf, −−conf ceph.conf  Use ceph.conf configuration file instead of the default /etc/ceph/ceph.conf to determine monitor addresses during startup. −p pool, −−pool pool  Interact with the given pool. Defaults to 'rbd'. −−latency−multiplier  Multiplies inter−request latencies. Default: 1. −−read−only  Only replay non−destructive requests. −−map−image rule  Add a rule to map image names in the trace to image names in the replay cluster. A rule of image1@snap1=image2@snap2 would map snap1 of image1 to snap2 of image2. −−dump−perf−counters  Experimental Dump performance counters to standard out before an image is closed. Performance counters may be dumped multiple times if multiple images are closed, or if the same image is opened and closed multiple times. Performance counters and their meaning may change between versions.

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EXAMPLESTo replay workload1 as fast as possible: rbd−replay −−latency−multiplier=0 workload1 To replay workload1 but use test_image instead of prod_image: rbd−replay −−map−image=prod_image=test_image workload1

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AVAILABILITYrbd−replay 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.

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SEE ALSOrbd−replay−prep(8), rbd(8)

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COPYRIGHT2010-2021, Inktank Storage, Inc. and contributors. Licensed under Creative Commons Attribution Share Alike 3.0 (CC-BY-SA-3.0) 0

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