AVRADR | Back to Index page

| Prolog Control Block Contents AVRADR 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.

AVRADR Prolog | Top of page

     NAME       : AVRLIST
     DESCRIPTION: Volume and Device Characteristics
     DSECT      : AVRADR
     FUNCTION   : AVRADR describes the characteristics of volumes
                  and devices in response to a VSE SVC 99 request
                  (GETVCE). AVRADR is called by AVRADR macro
                  which calls AVRLIST macro that in turn calls
                  DCTENTRY macro.

AVRADR Control Block Content | Top of page

     AVRADR DSECT
    Top of page

    Hex   Dec Type/Val   Lng Label (dup)    Comments
    ---- ---- --------- ---- -------------- --------
    0000    0 Structure      AVRADR         Volume and Device Characteristics
              00000000       AVRVOLC        * VOLUME CHARACTERISTICS
    0000    0 Address      4 AVRPUB         ADDRESS OF PHYSICAL UNIT BLOCK
    0004    4 Character    6 AVRVOLID       VOLUME IDENTIFIER
    000A   10 Bitstring    1 AVRFLAG        FLAG BYTE
              1... ....      AVREXTFL       X'80' AVREXTFL EXTENTION
                                            AVAILABLE
              .1.. ....      AVRSHR         X'40' AVRSHR DEVICE IS SHARED
              ..1. ....      AVRRSV         X'20' AVRRSV DEVICE IS RESERVED
              ...1 ....      AVRCOPY        X'10' AVRCOPY DEVICE A COPY
              .... 1...      AVRREMV        X'08' AVRREMV DEVICE HAS
                                            REMOVABLE MEDIA
              .... .1..      AVRCMSV        X'04' AVRCMSV DEVICE IS A CMS
                                            DISK
              .... ..1.      AVRNLNO        X'02' AVRNLNO AVRLNO IS NOT VALID
              .... ...1      AVRNVOL        X'01' AVRNVOL VOLID INFORMATION
                                            IS NOT VALID E.G NO VOL1 LABEL
    000B   11 Bitstring    1 AVRTYPE        FORMAT OF DEVICE CHARACTERISTICS
              .... ...1      AVRFBA         X'01' AVRFBA FBA DEVICE
              .... ..1.      AVRCKD         X'02' AVRCKD CKD DEVICE
              .... ..11      AVRRPS         X'03' AVRRPS CKD DEVICE WITH RPS
              .... .1..      AVRECKD        X'04' AVRECKD ECKD DEVICE
              ..1. ....      AVRTAPE        X'20' AVRTAPE TAPE DEVICE
    000C   12 Bitstring    5 AVRVTOC (0)    DASD ADDRESS OF VTOC
    000C   12 Bitstring    2 AVRVCC         CKD CYLINDER NO.
    000E   14 Bitstring    2 AVRVHH         CKD TRACK NO.
    0010   16 Bitstring    1 AVRVR          CKD RECORD NO.
    0011   17 Bitstring    1 AVRCDCST       CKD DEVICE STATUS
              1... ....      AVRNOWRT       X'80' AVRNOWRT VM DEVICE WITH
                                            READ ONLY
    000C   12 Bitstring    1 AVRVCI         BLOCKS PER CONTROL INTERVAL
    000D   13 Bitstring    4 AVRVNUM        FBA BLOCK NO. OF VTOC
    0011   17 Bitstring    1 AVRFDCST       FBA DUAL COPY STATUS
    000C   12 Bitstring    6 AVRTINFO       RESERVED FOR FUTURE EXTENTION
    0012   18 Bitstring    2 AVRLNO         LOGICAL UNIT NO. (AS IN CCB)
              00000014       AVRLEN         *-AVRADR LENGTH OF OUTPUT LIST
              0000000C       AVRILNG        12 LENGTH OF INPUT PARAMETER LIST
                 RETURN CODES
              00000000       AVRGOOD        0 ALL DATA RETURNED
              00000004       AVRNOLNO       4 WAS UNABLE TO READ VOL1 LABEL
                                            CHECK FIELD AVRFLAG
              00000008       AVRNOVOL       8 VOLUME NOT MOUNTED
              00000008       AVRNOASG       8 LOGICAL UNIT NOT ASSIGNED
              00000008       AVRNDASD       8 DEVICE NOT DASD
              0000000C       AVRIGN         12 LOGICAL UNIT IS ASSIGNED
                                            'IGNORE'
              00000010       AVRNOTUP       16 DEVICE IS NOT OPERATIONAL
              00000014       AVRBPL         20 BAD INPUT PARAMETER LIST
              00000018       AVRNOTDF       24 ASSIGNED UNIT IS DIFFERENT
                                            CLASS
              0000001C       AVRNRDY        28 DEVICE IS NOT READY

AVRADR Storage Layout | Top of page

    *** AVRADR - Volume and Device Characteristics
    *
    *     +---------------------------+---------------------------+
    *   0 |          AVRPUB           |        AVRVOLID-          |
    *     +-------------+------+------+-------------+-------------+
    *   8 |   -(004)    |:FLAG |:TYPE |   AVRVCC    |   AVRVHH    |
    *     +------+------+------+------+-------------+-------------+
    *  10 |AVRVR |:CDCST| 12
    *     +------+------+
    *
    *** AVRADR - Volume and Device Characteristics

    *** Overlay for AVRVTOC in AVRADR
    *
    *                                 +------+--------------------+
    *   8 ...                       C |AVRVCI|     AVRVNUM-       |
    *     +------+------+-------------+------+--------------------+
    *  10 |-(00D)|:FDCST| 12
    *     +------+------+
    *
    *** Overlay for AVRVTOC in AVRADR

    *** Overlay for AVRVTOC in AVRADR
    *
    *                                 +---------------------------+
    *     ...                       C |        AVRTINFO-          |
    *     +-------------+-------------+---------------------------+
    *  10 |   -(00C)    |   AVRLNO    | 14
    *     +-------------+-------------+
    *
    *** Overlay for AVRVTOC in AVRADR

AVRADR Cross Reference | Top of page

    Symbol         Dspl Value
    -------------- ---- -----
    AVRBPL         0012 00000014
    AVRCDCST       0011
    AVRCKD         000B 02
    AVRCMSV        000A 04
    AVRCOPY        000A 10
    AVRECKD        000B 04
    AVREXTFL       000A 80
    AVRFBA         000B 01
    AVRFDCST       0011
    AVRFLAG        000A
    AVRGOOD        0012 00000000
    AVRIGN         0012 0000000C
    AVRILNG        0012 0000000C
    AVRLEN         0012 00000014
    AVRLNO         0012
    AVRNDASD       0012 00000008
    AVRNLNO        000A 02
    AVRNOASG       0012 00000008
    AVRNOLNO       0012 00000004
    AVRNOTDF       0012 00000018
    AVRNOTUP       0012 00000010
    AVRNOVOL       0012 00000008
    AVRNOWRT       0011 80
    AVRNRDY        0012 0000001C
    AVRNVOL        000A 01
    AVRPUB         0000
    AVRREMV        000A 08
    AVRRPS         000B 03
    AVRRSV         000A 20
    AVRSHR         000A 40
    AVRTAPE        000B 20
    AVRTINFO       000C
    AVRTYPE        000B
    AVRVCC         000C
    AVRVCI         000C
    AVRVHH         000E
    AVRVNUM        000D
    AVRVOLC        0000 00000000
    AVRVOLID       0004
    AVRVR          0010
    AVRVTOC        000C

This information is based on z/VM 7.2.0 Last updated on 24 Jun 2020 at 09:36:07 EDT.
Copyright IBM Corporation, 1990, 2020