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 V4R1.0.
Last updated on 6 Jun 2001 at 12:33:31 EDT.
Copyright IBM Corporation, 1990, 2001