NAME

       nbdkit-split-plugin - nbdkit plugin to concatenate split files into one disk

SYNOPSIS

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

DESCRIPTION

       "nbdkit-split-plugin" is a file plugin for nbdkit(1).  One or more filenames may be given
       using the "FILENAME" parameter.  These files are logically concatenated into a single disk
       image.

       If you want to add a virtual partition table, see nbdkit-partitioning-plugin(1).

   Differences from nbdkit-file-plugin
       Normally to serve a single file you should use nbdkit-file-plugin(1).  This plugin differs
       from nbdkit-file-plugin as follows:

       •   nbdkit-file-plugin is faster and more efficient.  It has a fully parallel
           implementation, and does not have to deal with the complexity of locating the correct
           file to serve or splitting requests across files.

       •   nbdkit-file-plugin allows you to resize the underlying file dynamically.  The
           underlying files must not be resized when using the split plugin.

       •   nbdkit-file-plugin can handle block devices, but the split plugin can only handle
           plain files.

       •   nbdkit-file-plugin handles writes of blocks of zeroes efficiently, but the split
           plugin cannot.

       •   nbdkit-file-plugin can "punch holes" in the backing file in response to a trim request
           from the client, but the split plugin does not support this.

PARAMETERS

       [file=]FILENAME
           One or more files to open.  They are logically concatenated in the order they appear
           on the command line.

           This parameter must appear at least once.

           "file=" is a magic config key and may be omitted in most cases.  See "Magic
           parameters" in nbdkit(1).

FILES

       $plugindir/nbdkit-split-plugin.so
           The plugin.

           Use "nbdkit --dump-config" to find the location of $plugindir.

VERSION

       "nbdkit-split-plugin" first appeared in nbdkit 1.2.

SEE ALSO

       nbdkit(1), nbdkit-plugin(3), nbdkit-file-plugin(1), nbdkit-partitioning-plugin(1).

AUTHORS

       Richard W.M. Jones

COPYRIGHT

       Copyright (C) 2017 Red Hat Inc.

LICENSE

       Redistribution and use in source and binary forms, with or without modification, are
       permitted provided that the following conditions are met:

       •   Redistributions of source code must retain the above copyright notice, this list of
           conditions and the following disclaimer.

       •   Redistributions in binary form must reproduce the above copyright notice, this list of
           conditions and the following disclaimer in the documentation and/or other materials
           provided with the distribution.

       •   Neither the name of Red Hat nor the names of its contributors may be used to endorse
           or promote products derived from this software without specific prior written
           permission.

       THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED
       WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
       FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR CONTRIBUTORS
       BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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