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

#### SDRREC

Prolog

Control Block Contents
SDRREC DSECT

Storage Layout

Cross Reference (Contains links to field and bit definitions)

#### SDRREC Prolog

     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

#### SDRREC Control Block Content

#### SDRREC DSECT

    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' SHORT OBR TO BE WRITTEN
              .1.. ....      SDRRECD        X'40' TO BE RECORDED ON CNTR
                                            OVERFLOW
              ..1. ....      SDRMAX         X'20' 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

    *** 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

    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 V5R2.0. Last updated on 12 Apr 2006 at 17:43:00 EDT.
Copyright IBM Corporation, 1990, 2005