sadp(8)                             CLIX                             sadp(8)



  NAME

    sadp - Runs a disk access profiler

  SYNOPSIS

    sadp [-th] [-d device[-drive]] s [n]

  FLAGS

    The sadp command contains the following flags:

    -t          The -t flag reports the data in tabular form (default)

    -h          This flag reports the data in histogram form.

    -d device   Gives the type of disk devices.

  DESCRIPTION

    The sadp command reports disk access location and seek distance, in
    tabular or histogram form.  It samples disk activity once every second
    during an interval of s seconds.  This is done repeatedly if n is
    specified.  Cylinder usage and disk distance are recorded in units of 8
    cylinders.

    Valid values for device are: hdsk for integral disk and fdsk for integral
    floppy.  The drive attribute specifies the disk drives and it may be one
    of the following:

    1.  A drive number in the range supported by the device

    2.  Two numbers separated by a minus (indicating an inclusive range), or

    3.  A list of drive numbers separated by commas.

    Up to 8 disk drives may be reported.  The -d flag may be omitted, if only
    one device is present.

    The -t flag causes the data to be reported in tabular form.  The -h flag
    produces a histogram of the data on the printer.  To specify the default
    setting, use the -t flag.

  EXAMPLES

    The following string may be used to generate 4 tabular reports, each
    describing cylinder usage and seek distance for the hdsk disk drive 0
    during a 15-minute interval.

    sadp -d hdsk-0 900 4




  2/94 - Intergraph Corporation                                              1

  sadp(8)                             CLIX                             sadp(8)



  FILES

    /dev/kmem

  DIAGNOSTICS

    cannot open /dev/kmem
           The sadp command will display this message if it cannot access the
           /dev/kmem file.  This message is usually caused by running the sadp
           command as a user other than root.

  EXIT VALUES

    The sadp command will exit with a value greater than 0 if it encounters a
    problem.

  RELATED INFORMATION

    Files:  mem(7)



































  2                                              Intergraph Corporation - 2/94