AVRADR

Prolog  

Control Block Contents  
   AVRADR DSECT

Storage Layout  

Cross Reference (Contains links to field and bit definitions)  

AVRADR Prolog

 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

AVRADR DSECT

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

          
*** 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

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