Programming Interface Information: The Monitor Records are intended Programming Interfaces that allow the customer to write programs to obtain services of z/VM.

#### MRIODTOF

Prolog
Control Block Contents
Storage Layout
Cross Reference

#### MRIODTOF Prolog

####

####

     DSECT NAME - IODTOF
     FUNCTION - Map a Monitor record.
     LOCATED BY -
            Through the Monitor Control Area
     REFERENCED CONTROL BLOCKS -
            MRRECHDR    Monitor Record Header
     NAME - MRIODTOF
     DESCRIPTIVE NAME - Monitor Event Record
                        Domain  6 - I/O Domain
                        Record 19 - Set Throttle Off
     DESCRIPTION - Indicates that a device has been removed from the
                   throttle set.

    MRIODTOF Control Block Contents

    Offsets
    Dec Hex  Type       Len  Name (Dim)          Description

      0   0  Structure   40  IODTOF              Start of monitor record
      0   0  Character    0  IODTOF_MRHDR        Record header. See MRRECHDR for
                                                 details.
      0   0  Character   20  MRHDR
      0   0  Unsigned     2  MRHDRLEN            record length in bytes
      2   2  Unsigned     2  MRHDRZER            field of zeros
      4   4  Unsigned     1  MRHDRDM             domain identifier
      5   5  Unsigned     1  *
      6   6  Unsigned     2  MRHDRRC             record identifier
      8   8  Character    8  MRHDRTOD            Time at which this record was
                                                 built. In time-of-day (TOD) clock
                                                 format. See IBM System 370 XA
                                                 Principle of Operation for
                                                 explanation of format.
     16  10  Character    4  *
     20  14  Character    0  MRHDR_END           End of header
     20  14  Unsigned     4  IODTOF_RDEVSID      Host subchannel I.D. number
                                                 defined at initialization
     24  18  Unsigned     2  IODTOF_RDEVDEV      Device number
     26  1A  Unsigned     2  *                   Reserved and available for IBM
                                                 use.
     28  1C  Unsigned     4  IODTOF_THRDLYS      Cummulative count of I/O
                                                 requests that were delayed.
     32  20  Character    8  IODTOF_THRIORTE     I/O rate expressed as the TOD
                                                 clock increment between I/O
                                                 operations.
     40  28  Character    0  IODTOF_END

    MRIODTOF Cross Reference

                          Hex           Hex
    Name                 Offset Length Value

    IODTOF                  0     40
    IODTOF_END             28      0
    IODTOF_MRHDR            0      0
    IODTOF_RDEVDEV         18      2
    IODTOF_RDEVSID         14      4
    IODTOF_THRDLYS         1C      4
    IODTOF_THRIORTE        20      8
    MRHDR                   0     20
    MRHDR_END              14      0
    MRHDRDM                 4      1
    MRHDRLEN                0      2
    MRHDRRC                 6      2
    MRHDRTOD                8      8
    MRHDRZER                2      2

    This information is
    based on z/VM V4R3.0.

    Last updated on 1 May 2002 at 16:20:33.

    Copyright IBM Corporation, 1990, 2002