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

MRMTRPAG

Prolog
Control Block Contents
Cross Reference

MRMTRPAG Prolog

 DSECT NAME - MTRPAG
 FUNCTION - Map a Monitor record.
 LOCATED BY -
        Through the Monitor Control Area
 REFERENCED CONYTOL BLOCKS -
        MRRECHDR    Monitor Record Header
 NAME - MRMTRPAG
 DESCRIPTIVE NAME - Monitor Sample Configuration Record
                    Domain 1 - Monitor Domain
                    Record 8 - Paging Configuration Data
 DESCRIPTION - Identifies paging and spooling space available
               on CP owned DASD. A separate record is generated
               for each contiguous paging area and each contiguous
               spooling area on a CP volume.

MRMTRPAG Control Block Contents

Offsets
Dec  Hex  Type        Len  Name (Dim)             Description
 
   0   0  Structure    48  MTRPAG                 Start of monitor record
   0   0  Character     0  MTRPAG_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     6  MTRPAG_CPVOLSER        Volume serial identifier
  26  1A  Unsigned      1  MTRPAG_RDCPCYL         Number of pages per
                                                  cylinder. Not applicable for
                                                  FBA devices. See MTRPAG_FBA
  27  1B  Bitstring     1  MTRPAG_CALFLAGS        Flag byte
          1... ....        MTRPAG_FBA              When on, this device is a
                                                  FBA (Fixed Block Access)
                                                  DASD.
          .1.. ....        *                       
          ..1. ....        *                       
          ...1 ....        *                       
          .... 1...        *                       
          .... .1..        *                       
          .... ..1.        *                       
          .... ...1        *                       
  28  1C  Character     4  MTRPAG_CALTYPE         'PAGE' = paging space,
                                                  'SPOL' = spooling space
  32  20  Signed        4  MTRPAG_CALCYLNO        Space allocation. Number of
                                                  cylinders for a non-FBA DASD,
                                                  or number of pages for a FBA
                                                  DASD. See MTRPAG_FBA
  36  24  Signed        4  MTRPAG_CALSTART        Start of the paging or
                                                  spooling area. A cylinder
                                                  number for a non-FBA DASD, or
                                                  a page number for a FBA DASD.
                                                  See MTRPAG_FBA
  40  28  Unsigned      4  MTRPAG_RDEVSID         Host subchannel id
  44  2C  Unsigned      2  MTRPAG_RDEVDEV         Device number
  46  2E  Unsigned      2  *                      Reserved and available for
                                                  for IBM use
  48  30  Character     0  MTRPAG_END             

MRMTRPAG 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
MTRPAG                     0     48
MTRPAG_CALCYLNO           20      4
MTRPAG_CALFLAGS           1B      1
MTRPAG_CALSTART           24      4
MTRPAG_CALTYPE            1C      4
MTRPAG_CPVOLSER           14      6
MTRPAG_END                30      0
MTRPAG_FBA                1B           80
MTRPAG_MRHDR               0      0
MTRPAG_RDCPCYL            1A      1
MTRPAG_RDEVDEV            2C      2
MTRPAG_RDEVSID            28      4

This information is
based on z/VM V6R4.0.

Last updated on 4 Oct 2016 at 14:58:43.
Copyright IBM Corporation, 1990, 2016