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

MRMTRFAC

Prolog
Control Block Contents
Cross Reference

MRMTRFAC Prolog

 DSECT NAME - MTRFAC
 FUNCTION - Map a Monitor record.
 LOCATED BY -
        Through the Monitor Control Area
 REFERENCED CONTROL BLOCKS -
        MRRECHDR    Monitor Record Header
 NAME - MRMTRFAC
 DESCRIPTIVE NAME - Monitor Event Record
                    Domain 1  - Monitor Domain
                    Record 37 - Facility Alteration Events
 
DESCRIPTION - Records changes made to a system's facility
              alteration settings.
              Generated at each successful SET FACILITY...SYSTEM...
              request.
 








MRMTRFAC Control Block Contents


Offsets
Dec  Hex  Type        Len  Name (Dim)             Description
 
   0   0  Structure    36  MTRFAC                 Start of monitor record
   0   0  Character     0  MTRFAC_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  Character     8  MTRFAC_VMDUSER         Issuing UserID
  28  1C  Unsigned      4  MTRFAC_CALFACST        System facility alteration
                                                  settings before SET command
  28  1C  Bitstring     1  MTRFAC_CALFACB0P       Byte 0 prev FACILITY setting
          1... ....        MTRFAC_CALFTXD0         TX facilities DISABLED
          .1.. ....        MTRFAC_CALFTXM0         SET FACILITY TX SYSTEM MACHINE
                                                  was issued
          ..1. ....        *
          ...1 ....        *
          .... 1...        *
          .... .1..        *
          .... ..1.        *
          .... ...1        *
  29  1D  Character     3  *      Reserved for IBM use
  32  20  Unsigned      4  MTRFAC_SYSFACST        System facility alteration
                                                  settings before SET command
  32  20  Bitstring     1  MTRFAC_SYSFACB0       Byte 0 prev FACILITY setting
          1... ....        MTRFAC_SYSFTXD0         TX facilities DISABLED
          .1.. ....        MTRFAC_SYSFTXM0         SET FACILITY TX SYSTEM MACHINE
                                                  was issued
          ..1. ....        *
          ...1 ....        *
          .... 1...        *
          .... .1..        *
          .... ..1.        *
          .... ...1        *
  33  21  Character     3  *      Reserved for IBM use
  36  24  Unsigned      0  MTRFAC_END







MRMTRFAC Cross Reference


                      Hex           Hex
Name                  Offset Length Value
 
MRHDR                      0     20
MRHDR_END                 14      0
MRHDRDM                    4      1
MRHDRLEN                   0      2
MRHDRRC                    6      2
MRHDRTOD                   8      8
MRHDRZER                   2      2
MTRFAC                     0     36
MTRFAC_CALFACB0P          1C      1
MTRFAC_CALFACST           1C      4
MTRFAC_CALFTXD0           1C         80
MTRFAC_CALFTXM0           1C         40
MTRFAC_END                24      0
MTRFAC_MRHDR               0      0
MTRFAC_SYSFACB0           20      1
MTRFAC_SYSFACST           20      4
MTRFAC_SYSFTXD0           20         80
MTRFAC_SYSFTXM0           20         40
MTRFAC_VMDUSER            14      8








This information is
based on z/VM V7R4.0.

Last updated on 12 May 2025 at 12:16:05.

Copyright IBM Corporation, 1990, 2025