1nbdkit-split-plugin(1)              NBDKIT              nbdkit-split-plugin(1)
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NAME

6       nbdkit-split-plugin - nbdkit plugin to concatenate split files into one
7       disk
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SYNOPSIS

10        nbdkit split [file=]file1 [[file=]file2 [file=]file3 ...]
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DESCRIPTION

13       "nbdkit-split-plugin" is a file plugin for nbdkit(1).  One or more
14       filenames may be given using the "FILENAME" parameter.  These files are
15       logically concatenated into a single disk image.
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17       If you want to add a virtual partition table, see
18       nbdkit-partitioning-plugin(1).
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20   Differences from nbdkit-file-plugin
21       Normally to serve a single file you should use nbdkit-file-plugin(1).
22       This plugin differs from nbdkit-file-plugin as follows:
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24       ·   nbdkit-file-plugin is faster and more efficient.  It has a fully
25           parallel implementation, and does not have to deal with the
26           complexity of locating the correct file to serve or splitting
27           requests across files.
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29       ·   nbdkit-file-plugin allows you to resize the underlying file
30           dynamically.  The underlying files must not be resized when using
31           the split plugin.
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33       ·   nbdkit-file-plugin can handle block devices, but the split plugin
34           can only handle plain files.
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36       ·   nbdkit-file-plugin handles writes of blocks of zeroes efficiently,
37           but the split plugin cannot.
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39       ·   nbdkit-file-plugin can "punch holes" in the backing file in
40           response to a trim request from the client, but the split plugin
41           does not support this.
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PARAMETERS

44       [file=]FILENAME
45           One or more files to open.  They are logically concatenated in the
46           order they appear on the command line.
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48           This parameter must appear at least once.
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50           "file=" is a magic config key and may be omitted in most cases.
51           See "Magic parameters" in nbdkit(1).
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SEE ALSO

54       nbdkit(1), nbdkit-plugin(3), nbdkit-file-plugin(1),
55       nbdkit-partitioning-plugin(1).
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AUTHORS

58       Richard W.M. Jones
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61       Copyright (C) 2017 Red Hat Inc.
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LICENSE

64       Redistribution and use in source and binary forms, with or without
65       modification, are permitted provided that the following conditions are
66       met:
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68       ·   Redistributions of source code must retain the above copyright
69           notice, this list of conditions and the following disclaimer.
70
71       ·   Redistributions in binary form must reproduce the above copyright
72           notice, this list of conditions and the following disclaimer in the
73           documentation and/or other materials provided with the
74           distribution.
75
76       ·   Neither the name of Red Hat nor the names of its contributors may
77           be used to endorse or promote products derived from this software
78           without specific prior written permission.
79
80       THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND ANY
81       EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
82       IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
83       PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR CONTRIBUTORS BE
84       LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
85       CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
86       SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
87       BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
88       WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
89       OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
90       ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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94nbdkit-1.12.3                     2019-05-21            nbdkit-split-plugin(1)
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