SDMCM Back to Index page
 
Prolog 
Control Block Contents 
   SDMCM 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.


  SDMCM Prolog Top of page
 
 NAME       : HCPSDMCM
 DESCRIPTION: Common Data Area for Storage Device Management
 DSECT      : SDMCM
 FUNCTION   : Maintain data for Storage Device Management Component.
 LOCATED BY : Pointer (SYSSDMCM) in the System Common Data Area
 CREATED BY : HCPICUSD - Create and Initialize the SDMCM
 DELETED BY : N/A
 RELOCATION CONSIDERATIONS : None
 
 
  SDMCM Control Block Content Top of page
 

 SDMCM DSECT Top of page
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure SDMCM Common Data Area for Storage Device Management 0000 0 Address 4 SDMDRMQF Pointer to the first DRMBK in the queue 0004 4 Address 4 SDMDRMQL Pointer to last DRMBK in the queue 0008 8 Dbl-Word 8 SDMDRMLK (3) DRMBK queue lockword 0020 32 Address 4 SDMAMPTB Timer-id field for HCPAMP 0024 36 Address 4 SDMTZMSM Pointer to the ConCopy Session Management Dynamic Data Structure 0028 40 Dbl-Word 8 SDMTZMLK (3) Lock for the ConCopy Session Management Dynamic Data Structure 0040 64 Character 4 SDMCMID Identifies the storage area as a SDMCM block 00000009 SDMSIZE ((*-SDMCM)+7)/8 SDMCM size in double-words 00E2C4D4 SDMID C' SDM' Identifier for a SDMCM
 
 
  SDMCM Storage Layout Top of page
 
          
*** SDMCM - Common Data Area for Storage Device Management
*
*     +---------------------------+---------------------------+
*   0 |         SDMDRMQF          |         SDMDRMQL          |
*     +---------------------------+---------------------------+
*   8 |                                                       |
*     =                       SDMDRMLK                        =
*     |                                                       |
*     +---------------------------+---------------------------+
*  20 |         SDMAMPTB          |         SDMTZMSM          |
*     +---------------------------+---------------------------+
*  28 |                                                       |
*     =                       SDMTZMLK                        =
*     |                                                       |
*     +---------------------------+---------------------------+
*  40 |         SDMCMID           | 44
*     +---------------------------+
*
*** SDMCM - Common Data Area for Storage Device Management
 
 
  SDMCM Cross Reference Top of page
 
 
Symbol         Dspl Value
-------------- ---- -----
SDMAMPTB       0020
SDMCMID        0040
SDMDRMLK       0008
SDMDRMQF       0000
SDMDRMQL       0004
SDMID          0040 00E2C4D4
SDMSIZE        0040 00000009
SDMTZMLK       0028
SDMTZMSM       0024
 
This information is based on z/VM 7.3.0 Last updated on 22 Jun 2022 at 15:54:55 EDT.
Copyright IBM Corporation, 1990, 2022