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

6       nbdkit-null-plugin - nbdkit bitbucket plugin
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SYNOPSIS

9        nbdkit null [[size=]SIZE]
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DESCRIPTION

12       "nbdkit-null-plugin" is a null plugin for nbdkit(1).  Everything
13       written to the virtual device is discarded, and reads back as zeroes.
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15       Most NBD consumers will be very confused by this device.  Trying to
16       create filesystems etc on it will likely fail badly.  If the client is
17       caching writes locally then you will get inconsistent read behaviour.
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PARAMETERS

20       [size=]SIZE
21           Specify the virtual size of the disk image.
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23           This parameter is optional.  If omitted then a zero-sized device is
24           created.
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26           "size=" is a magic config key and may be omitted in most cases.
27           See "Magic parameters" in nbdkit(1).
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FILES

30       $plugindir/nbdkit-null-plugin.so
31           The plugin.
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33           Use "nbdkit --dump-config" to find the location of $plugindir.
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VERSION

36       "nbdkit-null-plugin" first appeared in nbdkit 1.2.
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SEE ALSO

39       nbdkit(1), nbdkit-plugin(3), nbdkit-full-plugin(1),
40       nbdkit-pattern-plugin(1), nbdkit-random-plugin(1).
41       nbdkit-zero-plugin(1).
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AUTHORS

44       Richard W.M. Jones
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47       Copyright (C) 2017 Red Hat Inc.
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LICENSE

50       Redistribution and use in source and binary forms, with or without
51       modification, are permitted provided that the following conditions are
52       met:
53
54       ·   Redistributions of source code must retain the above copyright
55           notice, this list of conditions and the following disclaimer.
56
57       ·   Redistributions in binary form must reproduce the above copyright
58           notice, this list of conditions and the following disclaimer in the
59           documentation and/or other materials provided with the
60           distribution.
61
62       ·   Neither the name of Red Hat nor the names of its contributors may
63           be used to endorse or promote products derived from this software
64           without specific prior written permission.
65
66       THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND ANY
67       EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
68       IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
69       PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR CONTRIBUTORS BE
70       LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
71       CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
72       SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
73       BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
74       WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
75       OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
76       ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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80nbdkit-1.16.1                     2019-12-03             nbdkit-null-plugin(1)
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