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

MRIODLPT

Prolog
Control Block Contents
Cross Reference

MRIODLPT Prolog

 DSECT NAME - IODLPT
 FUNCTION - This record indicates an LSS PAV Transition
 LOCATED BY -
           Through the Monitor Control Area
 REFERENCED CONTROL BLOCKS -
        MRRECHDR    Monitor Record Header
 NAME - MRIODLPT
 DESCRIPTIVE NAME - Monitor Event Record
                    Domain 6 - I/O Domain
                    Record 30 - LSS PAV Transition
 DESCRIPTION - Indicates an LSS PAV transition
 NOTES:
     The SSID (Subsystem ID) is a unique value that distinguishes
     a logical control unit from any other in a configuration.
     This value can be obtained from a Q DASD DETAILS command
     executed against one of the device's on the control unit.
     An LSS (Logical Subsystem) is a logical control unit
     within a physical control unit. The LSS number is unique
     only within the physical control unit and not unique
     across control units.  Currently there is no query command
     that presents this inforamtion.
     Codes defined for IODLPT_CUIPVOPR_OLD/NEW:
       IODLPT_CUINPVOP:  '01'X  CU is operating in No PAV mode
       IODLPT_CUIPAVOP:  '02'X  CU is operating in Basic PAV mode
       IODLPT_CUIHYPOP:  '03'X  CU is operating in HyperPAV mode
       IODLPT_CUIUNDET:  'FF'X  CU operating mode is undeterminable

MRIODLPT Control Block Contents

Offsets
Dec  Hex  Type        Len  Name (Dim)             Description
 
   0   0  Structure    28  IODLPT                 Start of monitor record
   0   0  Character     0  IODLPT_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      2  IODLPT_CUIDSSID        Subsystem ID (SSID)
  22  16  Unsigned      1  IODLPT_CUIPVOPR_OLD    Old PAV operating state
  23  17  Unsigned      1  IODLPT_CUIPVOPR_NEW    New PAV operating state
  24  18  Character     4  *                      Reserved and available for
                                                  IBM use.
  28  1C  Character     0  IODLPT_END

MRIODLPT Cross Reference

                      Hex           Hex
Name                  Offset Length Value 
 
IODLPT                     0     28
IODLPT_CUIDSSID           14      2
IODLPT_CUIPVOPR_NEW       17      1
IODLPT_CUIPVOPR_OLD       16      1
IODLPT_END                1C      0
IODLPT_MRHDR               0      0
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 V6R4.0.

Last updated on 5 Oct 2016 at 14:17:09.

Copyright IBM Corporation, 1990, 2016