nbdkit-rotational-filter - set if a plugin is rotational or not

       Richard W.M. Jones

       Copyright Red Hat

       "nbdkit-rotational-filter" is a filter for nbdkit(1) which lets you change the rotational property of a
       plugin.

       The rotational property is a boolean flag which hints to the client whether the plugin behaves like a
       spinning disk (if rotational is true) or like a solid state disk or RAM (if rotational is false).  If a
       disk is rotational, then the client may attempt to schedule disk accesses to reduce seek times using the
       elevator algorithm (https://en.wikipedia.org/wiki/Elevator_algorithm).

       Adding this filter without using the "rotational" parameter forces the plugin to advertise that it is
       rotational.  You can explicitly set the rotational property by using "rotational=true" or
       "rotational=false".

$filterdir/nbdkit-rotational-filter.so
           The filter.

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

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nbdkit-1.42.2                                      2025-04-02                        nbdkit-rotational-filter(1)

       nbdkit-rotational-filter - set if a plugin is rotational or not

rotational=true
           Set  the  rotational  property, indicating that the plugin behaves like a spinning disk.  This is the
           default when you enable this filter.

       rotational=false
           Clear the rotational property, indicating that the plugin behaves like a solid state disk or RAM.

nbdkit(1),  nbdkit-file-plugin(1),  nbdkit-readonly-filter(1),   nbdkit-spinning-filter(1),   nbdinfo(1),
       nbdkit-filter(3), https://en.wikipedia.org/wiki/Elevator_algorithm.

        nbdkit --filter=rotational PLUGIN [rotational=true|false]

       "nbdkit-rotational-filter" first appeared in nbdkit 1.40.