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
Storage Layout
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            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  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 V4R3.0.

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

Copyright IBM Corporation, 1990, 2002