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

#### MRSTOVDK

Prolog
Control Block Contents
Cross Reference

#### MRSTOVDK Prolog

####

####

     DSECT NAME - STOVDK
     FUNCTION - Map a Monitor record.
     LOCATED BY -
            Through the Monitor Control Area
     REFERENCED CONTROL BLOCKS -
            MRRECHDR    Monitor Record Header
     NAME - MRSTOVDK
     DESCRIPTIVE NAME - Monitor Sample Record
                        Domain 3  - Storage Domain
                        Record 17 - virtual disk in storage
     DESCRIPTION - Information concerning usage of virtual disks in
                   storage.  Once record for each disk.

    MRSTOVDK Control Block Contents

    Offsets
    Dec Hex  Type       Len  Name (Dim)             Description

      0   0  Structure   68  STOVDK                 Start of monitor record
      0   0  Character    0  STOVDK_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  Character    8  STOVDK_MDIOUSER        Owning userid, padded on the
                                                    right with blanks.
     28  1C  Character   24  STOVDK_QDISNAME        Address space name associated
                                                    with this virtual disk in
                                                    storage, padded on the right
                                                    with blanks.
     52  34  Unsigned     2  STOVDK_MDIOVDEV        VDEV number of the virtual
                                                    disk in storage.
     54  36  Bitstring    1  STOVDK_CALFLAG         Flag byte.
              1... ....      *
              .1.. ....      *
              ..1. ....      *
              ...1 ....      *
              .... 1...      STOVDK_MDIQDSKP        This is a private virtual
                                                    disk in storage.
              .... .1..      *
              .... ..1.      *
              .... ...1      *
     55  37  Character    1  *                      Reserved for IBM use.
     56  38  Unsigned     4  STOVDK_MDILINKS        Number of links to this disk
     60  3C  Unsigned     4  STOVDK_CALSIZE         Size of disk in 512 byte
                                                    blocks.
     64  40  Unsigned     4  STOVDK_QDIIOCNT        Count of virtual I/Os to this
                                                    virtual disk in storage.
     68  44  Character    0  STOVDK_END

    MRSTOVDK 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
    STOVDK                     0     68
    STOVDK_CALFLAG            36      1
    STOVDK_CALSIZE            3C      4
    STOVDK_END                44      0
    STOVDK_MDILINKS           38      4
    STOVDK_MDIOUSER           14      8
    STOVDK_MDIOVDEV           34      2
    STOVDK_MDIQDSKP           36           08
    STOVDK_MRHDR               0      0
    STOVDK_QDIIOCNT           40      4
    STOVDK_QDISNAME           1C     24

    This information is
    based on z/VM V6R1.0.

    Last updated on 8 Oct 2009 at 21:08:13.

    Copyright IBM Corporation, 1990, 2009