mirror of
https://github.com/ceph/ceph
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135 lines
3.4 KiB
Groff
135 lines
3.4 KiB
Groff
.\" Man page generated from reStructuredText.
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.TH "RBD-REPLAY-MANY" "8" "September 04, 2014" "dev" "Ceph"
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.SH NAME
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rbd-replay-many \- replay a rados block device (RBD) workload on several clients
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.SH SYNOPSIS
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.nf
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\fBrbd\-replay\-many\fP [ \fIoptions\fP ] \-\-original\-image \fIname\fP \fIhost1\fP [ \fIhost2\fP [ ... ] ] \-\- \fIrbd_replay_args\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\-many\fP is a utility for replaying a rados block device (RBD) workload on several clients.
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Although all clients use the same workload, they replay against separate images.
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This matches normal use of librbd, where each original client is a VM with its own image.
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.sp
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Configuration and replay files are not automatically copied to clients.
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Replay images must already exist.
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.SH OPTIONS
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.INDENT 0.0
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.TP
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.B \-\-original\-image name
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Specifies the name (and snap) of the originally traced image.
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Necessary for correct name mapping.
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.UNINDENT
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.TP
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.B \-\-image\-prefix prefix
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Prefix of image names to replay against.
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Specifying \-\-image\-prefix=foo results in clients replaying against foo\-0, foo\-1, etc.
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Defaults to the original image name.
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.UNINDENT
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.INDENT 0.0
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.TP
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.B \-\-exec program
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Path to the rbd\-replay executable.
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.UNINDENT
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.INDENT 0.0
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.TP
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.B \-\-delay seconds
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Delay between starting each client. Defaults to 0.
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.UNINDENT
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.SH EXAMPLES
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.sp
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Typical usage:
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.nf
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.ft C
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rbd\-replay\-many host\-0 host\-1 \-\-original\-image=image \-\- \-c ceph.conf replay.bin
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.ft P
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.fi
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.UNINDENT
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.sp
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This results in the following commands being executed:
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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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ssh host\-0 \(aqrbd\-replay\(aq \-\-map\-image \(aqimage=image\-0\(aq \-c ceph.conf replay.bin
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ssh host\-1 \(aqrbd\-replay\(aq \-\-map\-image \(aqimage=image\-1\(aq \-c ceph.conf replay.bin
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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\-many\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\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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