Programming Interface Information: This information is NOT intended to be used as Programming Interfaces of z/VM.

#### SDDATA

Prolog

Control Block Contents
SDDATA DSECT

Storage Layout

Cross Reference (Contains links to field and bit definitions)

#### SDDATA Prolog

     Name       : HCPTCMBK
     Description: ref TCMBK steal info for Main stg or XSTORE
     DSECT      : SDDATA

#### SDDATA Control Block Content

#### SDDATA DSECT

    Hex   Dec Type/Val   Lng Label (dup)    Comments
    ---- ---- --------- ---- -------------- --------
    0000    0 Structure      SDDATA         ref TCMBK steal info for Main stg
                                            or XSTORE
    0000    0 Signed       4 SDIDLSZ        Limit of number of pages in cache
    0004    4 Signed       4 SDCURSZ        Current number of pages in cache
    0008    8 Signed       4 SDCMDMIN       Minimum number of pages in cache
                                            as set by command
    000C   12 Signed       4 SDCMDMAX       Maximum number of pages in cache
                                            as set by command
    0010   16 Signed       4 SDDELETS       Number of pages deleted from
                                            track cache
    0014   20 Signed       4 SDSTEALS       Number of times page steal was
                                            called to steal pages of this
                                            type from the track cache
    0018   24 Signed       4 SDTCHBK        Pointer to next TCHBK for steal
                                            to check
    001C   28 Signed       4 SDHSHPG        Address of hash table page group
                                            in which next TCHBK to steal
                                            lives

#### SDDATA Storage Layout

    *** SDDATA - ref TCMBK steal info for Main stg or XSTORE
    *
    *     +---------------------------+---------------------------+
    *   0 |         SDIDLSZ           |         SDCURSZ           |
    *     +---------------------------+---------------------------+
    *   8 |         SDCMDMIN          |         SDCMDMAX          |
    *     +---------------------------+---------------------------+
    *  10 |         SDDELETS          |         SDSTEALS          |
    *     +---------------------------+---------------------------+
    *  18 |         SDTCHBK           |         SDHSHPG           |
    *     +---------------------------+---------------------------+
    *  20
    *
    *** SDDATA - ref TCMBK steal info for Main stg or XSTORE

#### SDDATA Cross Reference

    Symbol         Dspl Value
    -------------- ---- -----
    SDCMDMAX       000C
    SDCMDMIN       0008
    SDCURSZ        0004
    SDDELETS       0010
    SDHSHPG        001C
    SDIDLSZ        0000
    SDSTEALS       0014
    SDTCHBK        0018

This information is based on z/VM V4R3.0. Last updated on 1 May 2002 at 10:40:08 EDT.
Copyright IBM Corporation, 1990, 2002