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https://github.com/ceph/ceph
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142 lines
3.3 KiB
Groff
142 lines
3.3 KiB
Groff
.\" Man page generated from reStructuredText.
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.TH "RBD-REPLAY" "8" "September 10, 2014" "dev" "Ceph"
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.SH NAME
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rbd-replay \- replay rados block device (RBD) workloads
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.SH SYNOPSIS
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.nf
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\fBrbd\-replay\fP [ \fIoptions\fP ] \fIreplay_file\fP
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.fi
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.sp
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.SH DESCRIPTION
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.sp
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\fBrbd\-replay\fP is a utility for replaying rados block device (RBD) workloads.
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.SH OPTIONS
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.INDENT 0.0
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.TP
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.B \-c ceph.conf, \-\-conf ceph.conf
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Use ceph.conf configuration file instead of the default /etc/ceph/ceph.conf to
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determine monitor addresses during startup.
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.UNINDENT
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.TP
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.B \-p pool, \-\-pool pool
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Interact with the given pool. Defaults to \(aqrbd\(aq.
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.TP
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.B \-\-latency\-multiplier
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Multiplies inter\-request latencies. Default: 1.
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.TP
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.B \-\-read\-only
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Only replay non\-destructive requests.
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.UNINDENT
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.INDENT 0.0
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.TP
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.B \-\-map\-image rule
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Add a rule to map image names in the trace to image names in the replay cluster.
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A rule of image1@snap1=image2@snap2 would map snap1 of image1 to snap2 of image2.
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.INDENT 0.0
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.TP
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.B \-\-dump\-perf\-counters
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\fBExperimental\fP
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Dump performance counters to standard out before an image is closed.
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Performance counters may be dumped multiple times if multiple images are closed,
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or if the same image is opened and closed multiple times.
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Performance counters and their meaning may change between versions.
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.UNINDENT
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.SH EXAMPLES
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.sp
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To replay workload1 as fast as possible:
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.INDENT 0.0
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.INDENT 3.5
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.sp
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.nf
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.ft C
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rbd\-replay \-\-latency\-multiplier=0 workload1
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.ft P
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.fi
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.UNINDENT
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.UNINDENT
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.sp
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To replay workload1 but use test_image instead of prod_image:
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.INDENT 0.0
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.INDENT 3.5
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.sp
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.nf
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.ft C
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rbd\-replay \-\-map\-image=prod_image=test_image workload1
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.ft P
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.fi
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.UNINDENT
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.UNINDENT
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.SH AVAILABILITY
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.sp
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\fBrbd\-replay\fP is part of the Ceph distributed storage system. Please refer to
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the Ceph documentation at \fI\%http://ceph.com/docs\fP for more information.
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.SH SEE ALSO
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.sp
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\fBrbd\-replay\-prep\fP(8),
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\fBrbd\fP(8)
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.SH COPYRIGHT
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2010-2014, Inktank Storage, Inc. and contributors. Licensed under Creative Commons BY-SA
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.\" Generated by docutils manpage writer.
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