The SET subcommand defines or changes the value of the
    defragmentation process limits.

    Format

      DEFRAGMENT SET  { (parameter=value[,...]) } [ /QUALIFIERS ]

1  –  Parameters

 keywords:

    o  CPU_LIMIT: specifies the percent of CPU usage for any one
       defragmentation process. The CPU percent is the percent of a
       single CPU.

    o  IO_LIMIT: specifies the maximum direct I/O rate (per second)
       of any one defragmentation process.

    o  PROCESS_LIMIT: specifies the maximum number of defragmentation
       processes per node.

2  –  Restrictions

    o  None.

3  –  Qualifiers

3.1    /NODE

       /NODE=(node-name[,...])
       /NONODE (default)

          The /NODE qualifier limits the scope of the SET
          subcommand. By default, a given parameter is set
          identically on all nodes in the scheduling database.
          To limit parameters to fewer nodes, specify the node
          names with the /NODE qualifier.

4  –  Examples

    The following examples show how to set limits using the SET
    subcommand and its qualifiers.

    1.

    $ DEFRAGMENT SET PROCESS_LIMIT=3, IO_LIMIT=14/NODE=NODE_1

    In this example, the maximum number of defragmentation processes
    that can occur on NODE_1 is three. Further, a restriction
    of 14 direct I/Os per second is placed on each of these three
    defragmentation processes.

    2.

    $ DEFRAGMENT SET CPU_LIMIT=50

    In this example, the maximum CPU percentage allocated to any
    defragmentation process is set to 50 percent on all nodes in
    the system. If a defragmentation process exceeds this limit,
    its priority is decremented each minute (approximately) until it
    reaches that specified by the /PRIORITY qualifier or three..