SHOBK | Back to Index page

| Prolog Control Block Contents SHOBK DSECT Storage Layout Cross Reference (Contains links to field and bit definitions) |
Programming Interface Information: This information is NOT intended to be used as Programming Interfaces of z/VM.

SHOBK Prolog | Top of page

     NAME       : HCPSHOBK
     DESCRIPTION: Set System Characteristics Data Area
     DSECT      : SHOBK
     FUNCTION   : Map resident data area for Set System
                  Characteristics Data in HCPIOD
     LOCATED BY :
     CREATED BY : none
     DELETED BY : none

SHOBK Control Block Content | Top of page

     SHOBK DSECT
    Top of page

    Hex   Dec Type/Val   Lng Label (dup)    Comments
    ---- ---- --------- ---- -------------- --------
    0000    0 Structure      SHOBK          Set System Characteristics Data Area
    0000    0 Bitstring    1 SHOPSFOR       Order
              ...1 11.1      SHO1DCCW       X'1D' SHO1DCCW Set System
                                            Characteristics Order
    0001    1 Bitstring    1 SHOFLAGS       Flags
    0002    2 Bitstring    4 SHOCUSUP       Control Unit Types Supported
    0006    6 Bitstring    1 SHOCWSUP       CCW Supported
    0007    7 Bitstring    1 SHOFLSUP       Flags bits
    0008    8 Bitstring    1 SHOFLSP2       Additional flag bits
              1... ....      SHOPPRCN       X'80' SHOPPRCN PPRC Summary Event
                                            Notification Supported
    0009    9 Bitstring    3 *              Reserved
    000C   12 Signed       4 SHOMAXVE       Maximum Volume Expansion Cyls
    0010   16 Bitstring   46 *              Reserved
    003E   62 Bitstring    1 SHOP1          Part 1
    003F   63 Bitstring    1 SHOP2          Part 2
    0040   64 Bitstring    2 SHOP3          Part 3
              00000042       SHOBKBYL       *-SHOBK Byte length of SHOBK
              00000009       SHOBKDSZ       ((SHOBKBYL+7)/8) Doubleword
                                            length of SHOBK

SHOBK Storage Layout | Top of page

    *** SHOBK - Set System Characteristics Data Area
    *
    *     +------+------+---------------------------+------+------+
    *   0 |:PSFOR|:FLAGS|         SHOCUSUP          |:CWSUP|:FLSUP|
    *     +------+------+-------------+-------------+------+------+
    *   8 |:FLSP2|////////////////////|         SHOMAXVE          |
    *     +------+--------------------+---------------------------+
    *  10 |///////////////////////////////////////////////////////|
    *     =///////////////////////////////////////////////////////=
    *     |/////////////////////////////////////////+------+------+
    *  38 |/////////////////////////////////////////|SHOP1 |SHOP2 |
    *     +-------------+---------------------------+------+------+
    *  40 |   SHOP3     | 42
    *     +-------------+
    *
    *** SHOBK - Set System Characteristics Data Area

SHOBK Cross Reference | Top of page

    Symbol         Dspl Value
    -------------- ---- -----
    SHOBKBYL       0040 00000042
    SHOBKDSZ       0040 00000009
    SHOCUSUP       0002
    SHOCWSUP       0006
    SHOFLAGS       0001
    SHOFLSP2       0008
    SHOFLSUP       0007
    SHOMAXVE       000C
    SHOPPRCN       0008 80
    SHOPSFOR       0000
    SHOP1          003E
    SHOP2          003F
    SHOP3          0040
    SHO1DCCW       0000 1D

This information is based on z/VM 7.2.0 Last updated on 24 Jun 2020 at 09:30:30 EDT.
Copyright IBM Corporation, 1990, 2020