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

#### MRSTOSHD

Prolog
Control Block Contents
Cross Reference

#### MRSTOSHD Prolog

     DSECT NAME - STOSHD
     FUNCTION - This is an event record that is created whenever
                a NSS, DCSS, or SSP (Segment SPace) is deleted from
                storage (released by the last user).
     LOCATED BY -
            Through the Monitor Control Area
     REFERENCED CONTROL BLOCKS -
            MRRECHDR    Monitor Record Header
     NAME - MRSTOSHD
     DESCRIPTIVE NAME - Monitor Event Record
                        Domain 3  - Storage Domain
                        Record 16 - NSS/DCSS/SSP removed from storage
     DESCRIPTION - Generated when a Named Saved System (NSS),
                   Discontiguous Saved Segment (DCSS), or Segment
                   SPace (SSP) is removed from storage (released by
                   the last user).

#### MRSTOSHD Control Block Contents

    Offsets
    Dec  Hex  Type        Len  Name (Dim)             Description

       0   0  Structure   120  STOSHD                 Start of monitor record
       0   0  Character     0  STOSHD_MRHDR           record header
       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  STOSHD_SDFFN           Saved System/Segment
                                                      filename.
      28  1C  Character     8  STOSHD_SDFFT           Saved System/Segment
                                                      filetype.
      36  24  Unsigned      4  STOSHD_SDFCLTIM        Time of data file creation.
      40  28  Signed        2  STOSHD_SDFIDNUM        Spool file identification
                                                      number of this
                                                      System/Segment.
      42  2A  Character     1  STOSHD_SDFCLASS        Spool file class of this
                                                      System/Segment.
      43  2B  Character     1  *                      Reserved for IBM use
      44  2C  Unsigned      4  STOSHD_ASCCTPRS        Cardinal count of resident
                                                      pages <2G for this saved
                                                      System/Segment. See
                                                      STOSHD_ASCCTPRG for the >2G
                                                      value.
      48  30  Unsigned      4  STOSHD_SNTSTRCT        Number of pages saved in
                                                      the saved System/Segment.
      52  34  Unsigned      4  STOSHD_SNTNDTCT        Number of storage pages
                                                      defined with a 'no data
                                                      saved' page descriptor code.
      56  38  Unsigned      4  STOSHD_ASCCSPST        Cumulative count of frames
                                                      reclaimed from this
                                                      System/Segment.
      60  3C  Unsigned      4  STOSHD_ASCPTRSH        Cumulative count of page
                                                      translations of shaved pages
                                                      for this System/Segment.
      64  40  Character     8  *                      Reserved for IBM use
      72  48  Unsigned      4  STOSHD_ASCCSPGR        Cumulative count of pages
                                                      read from DASD to main
                                                      storage for this saved
                                                      System/Segment.
      76  4C  Unsigned      4  STOSHD_ASCCSPGW        Cumulative count of pages
                                                      written from main storage to
                                                      DASD for this saved
                                                      System/Segment.
      80  50  Unsigned      4  *                      Reserved for IBM use - was
                                                      STOSHD_ASCCSXRD
                                                      System/Segment.
      84  54  Unsigned      4  *                      Reserved for IBM use - was
                                                      STOSHD_ASCCSXWT
                                                      System/Segment.
      88  58  Unsigned      4  *                      Reserved for IBM use - was
                                                      STOSHD_ASCCSMIG
      92  5C  Unsigned      4  *                      Reserved for IBM use.
                                                      Previous field is no longer
                                                      available. (STOSHD_ASCCTPLK)
      96  60  Unsigned      4  STOSHD_ASCCTPGS        Cardinal count of non-
                                                      preferred paging slots for
                                                      this saved System/Segment.
     100  64  Unsigned      4  STOSHD_ASCCTPRG        Cardinal count of resident
                                                      pages >2G for this saved
                                                      System/Segment. See
                                                      STOSHD_ASCCTPRS for the <2G
                                                      value.
     104  68  Unsigned      4  STOSHD_ASCHLLC         Count of pages locked in
                                                      Host Logical storage for this
                                                      saved System/Segment.
     108  6C  Unsigned      4  STOSHD_ASCHLRC         Host logical resident
                                                      count.
     112  70  Unsigned      4  STOSHD_ASCCTRSV        Number of frames reserved
                                                      via the SET RESERVED command.
     116  74  Unsigned      4  STOSHD_ASCDSRSV        Cumulative count of times
                                                      demand scan could not move
                                                      any frames for the saved
                                                      System/Segment from the SUFO
                                                      to the global aging list
                                                      because it would violate its
                                                      SET RESERVED setting.
     120  78  Character     0  STOSHD_END

#### MRSTOSHD 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
    STOSHD                     0    120
    STOSHD_ASCCSPGR           48      4
    STOSHD_ASCCSPGW           4C      4
    STOSHD_ASCCSPST           38      4
    STOSHD_ASCCTPGS           60      4
    STOSHD_ASCCTPRG           64      4
    STOSHD_ASCCTPRS           2C      4
    STOSHD_ASCCTRSV           70      4
    STOSHD_ASCDSRSV           74      4
    STOSHD_ASCHLLC            68      4
    STOSHD_ASCHLRC            6C      4
    STOSHD_ASCPTRSH           3C      4
    STOSHD_END                78      0
    STOSHD_MRHDR               0      0
    STOSHD_SDFCLASS           2A      1
    STOSHD_SDFCLTIM           24      4
    STOSHD_SDFFN              14      8
    STOSHD_SDFFT              1C      8
    STOSHD_SDFIDNUM           28      2
    STOSHD_SNTNDTCT           34      4
    STOSHD_SNTSTRCT           30      4

    This information is
    based on z/VM V7R2.0.

    Last updated on 08 August 2020 at 14:59:46.

    Copyright IBM Corporation, 1990, 2020