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:
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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. | ||
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nbdkit-file-plugin allows you to resize the underlying file dynamically. The underlying files must not be resized when using the split plugin. | ||
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nbdkit-file-plugin can handle block devices, but the split plugin can only handle plain files. | ||
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nbdkit-file-plugin handles writes of blocks of zeroes efficiently, but the split plugin cannot. | ||
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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 Red Hat
LICENSE
Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
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Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. | ||
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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. | ||
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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. |
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