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

MRIODSOF

Prolog
Control Block Contents
Cross Reference

MRIODSOF Prolog

 DSECT NAME - IODSOF
 FUNCTION - Map a Monitor record.
 LOCATED BY -
        Through the Monitor Control Area
 REFERENCED CONTROL BLOCKS -
        MRRECHDR    Monitor Record Header
 NAME - MRIODSOF
 DESCRIPTIVE NAME - Monitor Event Record
                    Domain 6 - I/O Domain
                    Record 12- Vary Off Subchannel
 DESCRIPTION - Indicates that a subchannel has been varied offline

MRIODSOF Control Block Contents

Offsets
Dec  Hex  Type        Len  Name (Dim)             Description
 
   0   0  Structure    28  IODSOF                 Start of monitor record
   0   0  Character     0  IODSOF_MRHDR           Record header. See MRRECHDR
                                                  for details.
   0   0  Character    20  MRHDR
   0   0  Unsigned      2  MRHDRLEN
   2   2  Unsigned      2  MRHDRZER
   4   4  Unsigned      1  MRHDRDM
   5   5  Unsigned      1  *
   6   6  Unsigned      2  MRHDRRC
   8   8  Character     8  MRHDRTOD
  16  10  Character     4  *
  20  14  Character     0  MRHDR_END
  20  14  Unsigned      4  IODSOF_RDEVSID         Host subchannel I.D. number
                                                  defined at initialization
  24  18  Unsigned      2  IODSOF_RDEVDEV         Device number
  26  1A  Unsigned      2  *                      Reserved and available for
                                                  IBM use
  28  1C  Character     0  IODSOF_END

MRIODSOF Cross Reference

                      Hex           Hex
Name                  Offset Length Value
 
IODSOF                     0     28
IODSOF_END                1C      0
IODSOF_MRHDR               0      0
IODSOF_RDEVDEV            18      2
IODSOF_RDEVSID            14      4
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 V7R2.0.

Last updated on 11 August 2020 at 13:00:03.

Copyright IBM Corporation, 1990, 2020