SDRREC Back to Index page
 
Prolog 
Control Block Contents 
   SDRREC 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.


  SDRREC Prolog Top of page
  
 NAME       : SDRREC
 DESCRIPTION: STATISTICAL DATA RECORDING BLOCK
 DSECT      : SDRREC
 FUNCTION   : SDRREC CONTAINS COUNTERS TO RECORD TEMPORARY
              ERRORS ON A GIVEN I/O DEVICE.
 LOCATED BY : RDEVSDR FIELD OF HCPRDEV.
 CREATED BY : HCPIOE
 DELETED BY : HCPIOE
 RELOCATION CONSIDERATIONS : None
 
 
  SDRREC Control Block Content Top of page
  




 SDRREC DSECT
Top of page


Hex   Dec Type/Val   Lng Label (dup)    Comments
---- ---- --------- ---- -------------- --------
0000    0 Structure      SDRREC         STATISTICAL DATA RECORDING BLOCK
0000    0 Signed       4 SDRRDEV        ADDRESS OF ASSOCIATED RDEVBLOK
0004    4 Bitstring    1 SDRFLAGS       SDRREC FLAGS
          1... ....      SDRSHRT        X'80' SDRSHRT SHORT OBR TO BE
                                        WRITTEN
          .1.. ....      SDRRECD        X'40' SDRRECD TO BE RECORDED ON
                                        CNTR OVERFLOW
          ..1. ....      SDRMAX         X'20' SDRMAX MAX NUMBER OF SDR
                                        CNTRS HANDLED
0005    5 Bitstring    1 SDRPRMCT       PARAMETER LIST COUNTER
0006    6 Bitstring    1 SDRFLCT        FULL BYTE COUNTER
0007    7 Bitstring    1 SDROVFWK       STATISTICAL UPDATE WORK BYTE
0008    8 Bitstring    1 SDRLNGTH       LENGTH (BYTES) OF SDR COUNTERS
0009    9 Bitstring    3 SDRCUAD        PRIMARY ADDRESS OF DEVICE USED
000C   12 Bitstring    1 SDRCTRS (10)   SDR ERROR COUNTERS
0016   22 Bitstring    1 SDRCTRS1 (10)  ADDITIONAL SDR ERROR CNTR FOR
                                        DEVICES WHICH USE MORE THAN 10.
          0000000C       SDRBLEN        SDRCTRS-SDRREC HEADER SIZE IN
                                        BYTES
          00000004       SDRSIZE        (*-SDRREC+7)/8 SDRREC SIZE IN
                                        DW'S
 
 
  SDRREC Storage Layout Top of page
  
          
*** SDRREC - STATISTICAL DATA RECORDING BLOCK
*
*     +---------------------------+------+------+------+------+
*   0 |         SDRRDEV           |:FLAGS|:PRMCT|:FLCT |:OVFWK|
*     +------+--------------------+------+------+------+------+
*   8 |:LNGTH|      SDRCUAD       |         SDRCTRS           |
*     +------+--------------------+             +-------------+
*  10 |                                         |  SDRCTRS1   |
*     +-----------------------------------------+             |
*     |                                                       |
*     +-------------------------------------------------------+
*  20
*
*** SDRREC - STATISTICAL DATA RECORDING BLOCK
 
 
  SDRREC Cross Reference Top of page
  
 
Symbol         Dspl Value
-------------- ---- -----
SDRBLEN        0016 0000000C
SDRCTRS        000C
SDRCTRS1       0016
SDRCUAD        0009
SDRFLAGS       0004
SDRFLCT        0006
SDRLNGTH       0008
SDRMAX         0004 20
SDROVFWK       0007
SDRPRMCT       0005
SDRRDEV        0000
SDRRECD        0004 40
SDRSHRT        0004 80
SDRSIZE        0016 00000004
 
This information is based on z/VM 7.3.0 Last updated on 22 Jun 2022 at 15:59:18 EDT.
Copyright IBM Corporation, 1990, 2022