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

VDEV

Prolog  

Control Block Contents  
   VDEV DSECT

Storage Layout  

Cross Reference (Contains links to field and bit definitions)  


VDEV Prolog

 NAME       : HCPVDEV
 DESCRIPTION: VIRTUAL DEVICE CONTROL BLOCK
 DSECT      : VDEV
 FUNCTION   : DESCRIBE THE STATUS OF AN I/O DEVICE (REAL OR VIRTUAL)
              ACCESSABLE BY A VIRTUAL MACHINE.
 LOCATED BY - A POINTER IN THE LOWEST LEVEL INDEX VECTOR IN THE
              FOUR-LEVEL TREE ANCHORED IN:
                VMDCHRSN - FOR ACCESS VIA SUBCHANNEL NUMBER
                VMDCHRDN - FOR ACCESS VIA DEVICE NUMBER
              RDEVVDEV - DEDICATED DEVICE ONLY
              BLKVDEVA - DEVICES CONNECTED TO DASD BLOCK I/O
                         SYSTEM SERVICE
              VDEVBASE - MULTIPLE EXPOSURE DEVICE ONLY
              VMDVSPRT - PRINTER TO USE IN DUMP, TRACE, ... CMDS
              VMDVCONS - CONSOLE
              MDIRVDEV - VDEV TO WHICH A MINI-DISK EXTENT IS
                         VIRTUALLY RESERVED.
              WHILE AN I/O EVENT IS OUTSTANDING FOR A VIRTUAL
              MACHINE, THE ADDRESS OF A VDEV MAY APPEAR IN:
                CHCQUEUE(I) - FIRST DEVICE WITH AN INTERRUPT PENDING
                              ON CHANNEL I (OR IN CHANNEL CLASS I)
                VDEVFPNT - NEXT DEVICE WITH INTERRUPT PENDING ON
                           THIS CHANNEL (OR THIS VDEV, IF LAST)
                VDEVBPNT - PREVIOUS INTERRUPT PENDING DEVICE ON THIS
                           CHANNEL (OR THIS VDEV, IF FIRST)
                VMDWVDEV - DEVICE CAUSING I/O WAIT CONDITION
                           - SYNCHRONOUS I/O VIA DIAGNOSE 18 OR 20
                           - VIRTUAL MACHINE LOOPING ON TIO INSTR.
                IORVDEV -  VDEV WITH WHICH VIRTUAL MACHINE'S I/O
                           REQUEST IS ASSOCIATED.
              WHEN A GUEST REQUESTS AN ASYNCHRONOUS MESSAGE,
              THE ADDRESS OF A VDEV MAY APPEAR IN:
                AEBKVDEV - VDEV WITH WHICH VIRTUAL MACHINE'S
                           ASYNCHRONOUS MESSAGE REQUEST IS
                           ASSOCIATED.
              I/O SUPERVISOR ROUTINES NORMALLY USE REGISTER 6 TO
              ADDRESS THE VDEV ASSOCIATED WITH THE EVENT BEING
              PROCESSED.
 CREATED BY : HCPVDB
 DELETED BY : HCPVDB

 

VDEV Control Block Content


VDEV DSECT

Hex   Dec Type/Val   Lng Label (dup)    Comments
---- ---- --------- ---- -------------- --------
0000    0 Structure      VDEV           VIRTUAL DEVICE CONTROL BLOCK
0000    0 Signed       4 VDEVFPNT       FORWARD INTERRUPTION POINTER
0004    4 Signed       4 VDEVBPNT       BACKWARD INTERRUPTION POINTER
0008    8 Dbl-Word     8 VDEVLOCK (0)   VIRTUAL DEVICE LOCKWORD
0008    8 Address      4 VDEVLOWN       ADDRESS OF LOCK OWNER'S VMDBK
000C   12 Address      4 VDEVTSKQ       ANCHOR FOR QUEUE OF WAITING TASKS
0010   16 Signed       2 VDEVSUB        VIRTUAL SUBCHANNEL NUMBER
0012   18 Signed       2 VDEVCODE (0)   VIRTUAL DEVICE IDENTITY CODE
0012   18 Bitstring    1 VDEVCLAS       DEVICE CLASS
          1... ....      CLASTERM       X'80' TERMINAL DEVICE CLASS
          .1.. ....      CLASGRAF       X'40' GRAPHIC DISPLAY DEVICE
                                        CLASS
          .1.. ...1      CLASGRFR       X'41' GRAPHIC DISPLAY DEVICE
                                        CLASS (REMOTE)
          ..1. ....      CLASPOOL       X'20' UNIT RECORD SPOOLING DEVICE
                                        CLASS
          ...1 ....      CLASSVCM       X'10' SIMULATED DEVICE CLASS
          .... 1...      CLASTAPE       X'08' MAGNETIC TAPE DEVICE CLASS
          .... .1..      CLASDASD       X'04' DIRECT ACCESS STORAGE
                                        DEVICE CLASS
          .... ..1.      CLASSPEC       X'02' SPECIAL DEVICE CLASS
          .... ...1      CLASSWCH       X'01' Switch device class
          1111 1111      CLASAIF        X'FF' Adapter-Interrupt-Facility
                                        (AIF) Class
0013   19 Bitstring    1 VDEVTYPE       DEVICE TYPE
          1... ....      TYP2700        X'80' TERM - 2700 BISYNC LINE
          1... 1...      TYPBSC         X'88' TERM - BISYNC LINE FOR 3270
                                        REMOTE STATION
          .1.. ....      TYPCONS        X'40' TERM - CONSOLE DEVICE
          .1.. ....      TYP3215        X'40' TERM - 3215 CONSOLE
          .1.. ....      TYP1052        X'40' TERM - 1052 CONSOLE
          ..1. ....      TYPTTY         X'20' TERM - USASCII-8 TELEGRAPH
                                        TERMINAL
          ...1 ....      TYPIBM1        X'10' TERM - IBM TERMINAL CONTROL
                                        TYPE 1
          ...1 11..      TYPUNDEF       X'1C' TERM - TERMINAL TYPE
                                        UNDEFINED
          ...1 1...      TYP2741        X'18' TERM - 2741 COMMUNICATIONS
                                        TERMINAL
          ...1 1...      TYP3767        X'18' TERM - 3767 IN 2741
                                        COMPATIBILITY MOD
          ...1 .1..      TYP1050        X'14' TERM - 1050 COMMUNICATIONS
                                        TERMINAL
          .... 1...      TYPSDLC        X'08' TERM - SDLC Integrated
                                        Adapter
          ..1. ....      TYPTELE2       X'20' TERM - TELE2 Integrated
                                        Adapter
          ..1. .1..      TYPHDLC        X'24' TERM - HDLC Integrated
                                        Adapter
          ..1. 1...      TYPILAN        X'28' TERM - ILAN Integrated
                                        Adapter
          ..1. 1...      TYPELAN        X'28' TERM - ELAN Integrated
                                        Adapter
          .... .1..      TYPIC          X'04' TERM - Integrated console
          .1.. ....      TYP3270        X'40' GRAF - 3270 GENERIC DISPLAY
                                        STATION
          1... ....      TYP3277        X'80' GRAF - 3277 DISPLAY STATION
          .1.. ....      TYP3278        X'40' GRAF - 3278 DISPLAY STATION
          .1.. ....      TYP3178        X'40' GRAF - 3178 DISPLAY STATION
          .1.. ....      TYP3279        X'40' GRAF - 3279 DISPLAY STATION
          .1.. ....      TYP3179        X'40' GRAF - 3179 DISPLAY STATION
          .1.. ....      TYP3180        X'40' GRAF - 3180 DISPLAY STATION
          .1.. ....      TYP3290        X'40' GRAF - 3290 DISPLAY STATION
          .1.. ....      TYP3190        X'40' GRAF - 3190 DISPLAY STATION
          ..1. ....      TYP3271        X'20' GRAF - 3271 CONTROLLER
                                        (REMOTE)
          ...1 ....      TYP3275        X'10' GRAF - 3275 DISPLAY STATION
          .... 1...      TYP3284        X'08' GRAF - 3284 PRINTER
          .... 1...      TYP3286        X'08' GRAF - 3286 PRINTER
          .... 1..1      TYP3287        X'09' GRAF - 3287 PRINTER
          .... 1...      TYP3288        X'08' GRAF - 3288 PRINTER
          .... 1..1      TYP3289        X'09' GRAF - 3289 PRINTER
          .... 1...      TYP3287L       X'08' GRAF - 3287 LOGICAL PRINTER
          .... 1...      TYP3289L       X'08' GRAF - 3289 LOGICAL PRINTER
          .... .1..      TYP2250        X'04' GRAF - 2250 DISPLAY UNIT
          .... .1..      TYP3250        X'04' GRAF - 3250 DISPLAY UNIT
          .... .11.      TYP5080        X'06' GRAF - 5080 DISPLAY UNIT
          ..11 ....      TYPCLUST       X'30' GRAF - CLUSTER CTLR (3271
                                        OR 3275)
          1... ....      TYPRDR         X'80' SPOL - CARD READER DEVICE
          1... ...1      TYP2501        X'81' SPOL - 2501 CARD READER
          1... ..1.      TYP2540R       X'82' SPOL - 2540 CARD READER
          1... .1..      TYP3505        X'84' SPOL - 3505 CARD READER
          .1.. ....      TYPPUN         X'40' SPOL - CARD PUNCH DEVICE
          .1.. ..1.      TYP2540P       X'42' SPOL - 2540 CARD PUNCH
          .1.. .1..      TYP3525        X'44' SPOL - 3525 CARD PUNCH
          ..1. ....      TYPPRT         X'20' SPOL - PRINTER TYPE DEVICE
          ..1. ...1      TYP1403        X'21' SPOL - 1403 PRINTER
          ..1. ..1.      TYP32XX        X'22' SPOL - 3203 OR 3211 PRINTER
          ..1. .11.      TYP3203        X'26' SPOL - 3203 PRINTER
          ..1. ..1.      TYP3211        X'22' SPOL - 3211 PRINTER
          ..1. 1...      TYP3800        X'28' SPOL - 3800 PRINTER
          ..1. ..11      TYP3262        X'23' SPOL - 3262 PRINTER
          ..1. .1..      TYP4245        X'24' SPOL - 4245 PRINTER
          ..1. 1..1      TYP4248        X'29' SPOL - 4248 PRINTER
          ..1. .1.1      TYP3820        X'25' SPOL - 3820 PRINTER -
                                        dedicated only
          ..1. .111      TYPAFP1        X'27' SPOL - AFP1 PRINTER -
                                        dedicated only
          ..1. 1.1.      TYPVAFP        X'2A' SPOL - VAFP PRINTER -
                                        simulated only
          ...1 ....      TYPSYS         X'10' SPOL - SYSTEM VIRT DEVICE
                                        FOR DUMPS
          ...1 ....      TYP3420        X'10' TAPE - 3420 TAPE DRIVE
          ..1. ....      TYP3430        X'20' TAPE - 3430 TAPE DRIVE
          .1.. ....      TYP3480        X'40' TAPE - 3480 TAPE DRIVE
          .1.. ..1.      TYP3424        X'42' TAPE - 3424 TAPE DRIVE
          .1.. .1..      TYP9348        X'44' TAPE - 9348 TAPE DRIVE
          1... ....      TYP3422        X'80' TAPE - 3422 TAPE DRIVE
          1... ...1      TYP3490        X'81' TAPE - 3490 TAPE DRIVE
          1... ..11      TYP3590        X'83' TAPE - 3590 TAPE DRIVE
          .1.. ....      TYP3330        X'40' DASD - 3330 DISK STORAGE
                                        FACILITY
          ..1. ....      TYP3340        X'20' DASD - 3340 DISK STORAGE
                                        FACILITY
          ...1 ....      TYP3350        X'10' DASD - 3350 DISK STORAGE
                                        FACILITY
          ...1 ...1      TYP3350C       X'11' DASD - 3350 4 X 8 PAGING
                                        STORAGE
          ...1 ..1.      TYP3350D       X'12' DASD - 3350 4 X 4 PAGING
                                        STORAGE
          .... 1...      TYP2305        X'08' DASD - 2305 FIXED HEAD
                                        STORAGE FACILITY
          .... .1..      TYP3380        X'04' DASD - 3380 DISK STORAGE
                                        FACILITY
          1... ..1.      TYP3390        X'82' DASD - 3390 DISK STORAGE
                                        FACILITY
          1... ....      TYP3375        X'80' DASD - 3375 DISK STORAGE
                                        FACILITY
          .... ..1.      TYP3370        X'02' DASD - 3370 DISK STORAGE
                                        FACILITY
          1... ...1      TYP9345        X'81' DASD - 9345 DISK STORAGE
                                        FACILITY
          ..1. ...1      TYP9332        X'21' DASD - 9332 FBA Direct
                                        Access Storage
          ..1. ..1.      TYP9335        X'22' DASD - 9335 FBA Direct
                                        Access Storage
          ..1. .1..      TYP9336        X'24' DASD - 9336 FBA Direct
                                        Access Storage
          ..1. 1...      TYPFBA         X'28' DASD - Generic FBA DAS
          .1.. ....      TYP9033        X'40' SWCH - 9033 Switch device
          1... ....      TYP9032        X'80' SWCH - 9032 Switch device
          ..1. ....      TYP2032        X'20' SWCH - 2032 FICON Switch
                                        device
          1... ....      TYPCTCA        X'80' SPEC - CHANNEL TO CHANNEL
                                        ADAPTER
          1... ....      TYP3088        X'80' SPEC - 3088 MULTISYSTEM
                                        CHANNEL COMMUNICATION UNIT
          .1.. ....      TYP3704        X'40' SPEC - 3704 PROGRAMMABLE
                                        COMMUNICATION CONTROL UNIT
          .1.. ....      TYP3705        X'40' SPEC - 3705 PROGRAMMABLE
                                        COMMUNICATION CONTROL UNIT
          ..1. ....      TYPOSA         X'20' SPEC - Open Systems Adapter
                                        (OSA)
          ...1 ....      TYPFCP         X'10' SPEC - Open FCP Adapter
                                        (FCP)
          .... .1..      TYPE3SCH       X'04' SPEC - Type 3 subchannel
          .... ..1.      TYP3851        X'02' SPEC - MSS MASS STORAGE
                                        COMMUNICATOR
          .... 1...      TYP3890        X'08' SPEC - 3890 DOCUMENT
                                        PROCESSOR
          .... ...1      TYPUNSUP       X'01' SPEC - DEVICE UNSUPPORTED
                                        BY * THE VM/ 370 MIGRATION AID
          .... .1..      TYP3SIM        X'04' VCM - Simulated type 3
                                        subchannel
          .... ..1.      TYPDYNIO       X'02' VCM - Dynamic I/O
          .... ...1      TYPMSGF        X'01' VCM - Message Facility
0014   20 Signed       4 VDEVUSER       POINTER TO VMDBK OF OWNER
0018   24 Bitstring    1 VDEVSTAT       DEVICE STATUS - OWNED BY VIRTUAL
                                        I/O INSTRUCTION SIMULATION. THIS
                                        IS NOT TO BE USED BY VIRTUAL
                                        DEVICE SIMULA- TION.
          1... ....      VDEVBUSY       X'80' START FUNCTION
          .1.. ....      VDEVPRCE       X'40' CHANNEL END RECEIVED
          ..1. ....      VDEVCLRF       X'20' CLEAR FUNCTION
          ...1 ....      VDEVHLTF       X'10' HALT FUNCTION
          1111 ....      VDEVACTV       VDEVBUSY+VDEVPRCE+VDEVCLRF+VDEVHL
                                        TF
          .... 1...      VDEVSUSP       X'08' SUBCHANNEL SUSPENDED
          .... .1..      VDEVRPND       X'04' RESUME PENDING
          .... ..1.      VDEVQUED       X'02' DEVICE-BUSY RECEIVED -
                                        VDEVNIOR CONTAINS THE ADDRESS OF
                                        AN IORBK WHICH RECEIVED AN
                                        INITIAL STATUS OF BUSY-ALONE AND
                                        IS AWAITING AN UNSOLICITED DEVICE
                                        END.
          .... ...1      VDEVCATT       X'01' ATTACHED VIA CONSOLE
                                        COMMAND
0019   25 Bitstring    1 VDEVWAIT       WAIT STATUS CONTROLS
          1... ....      VDEVIMRS       X'80' VM SUSPENDED PENDING I/O
                                        RESPONSE
          .1.. ....      VDEVWINT       X'40' CPU(S) AWAITING STATUS
                                        (TIO/TSCH BUSY)
001A   26 Bitstring    1 VDEVAFLG       DEVICE ALLOCATION FLAG
          1... ....      VDEVINTV       X'80' SIMULATED INTERVENTION
                                        REQUIRED
          .1.. ....      VDEVTDSK       X'40' DEVICE IS DASD TDISK
          ..1. ....      VDEVVSIM       X'20' DEVICE IS SIMULATED BY
                                        VDSBK
          ...1 ....      VDEVFULL       X'10' DEVICE IS A COMPLETE VOLUME
          .... 1...      VDEVDED        X'08' DEVICE IS ATTACHED TO
                                        VDEVRDEV
          .... .1..      VDEVMPLX       X'04' MULTIPLE EXPOSURE DEVICE
          .... ..1.      VDEVFPO        X'02' THE DEVICE IS A
                                        FULL-PACK-OVERLAY MINIDISK
          .... ...1      VDEVDTCH       X'01' THE DEVICE IS BEING
                                        DETACHED
001B   27 Bitstring    1 VDEVBFLG       BACKUP STATUS FLAG - OWNED BY
                                        HALT SIMULATION PROCESSING TO
                                        PRESERVE INTERMEDIATE STATUS
                                        ACROSS HALT.
          1... ....      VDEVBCC0       X'80' BACKUP CONFIRMED CC 0 FLAG
          .1.. ....      VDEVBPCI       X'40' BACKUP PCI FLAG
          ..1. ....      VDEVBSUI       X'20' BACKUP SUSPENSION INTERRUPT
                                        FLAG
          .... 1...      VDEVQACT       X'08' BACKUP QDIO Active Status
001C   28 Bitstring    1 VDEVDFLG       DEVICE CONTROL FLAGS
          1... ....      VDEVRO         X'80' DEVICE- READ ONLY ACCESS
          .1.. ....      VDEVENAB       X'40' COMMUNICATION LINE -
                                        ENABLED
          ..1. ....      VDEVDIAL       X'20' COMMUNICATION LINE - DIALED
          ...1 ....      VDEVSDIA       X'10' COMMUNICATION LINE - SNA
                                        DIALED
          .... 1...      VDEVNOTO       X'08' If on, means that this VDEV
                                        is no longer operational, because
                                        it is soon going away. Set by
                                        Detach processing.
          .... .1..      VDEVRSRL       X'04' RESERVE/RELEASE VALID CCW'S
          .... ..1.      VDEVNSEG       X'02' NO CHAN PROG SEGMENTATION
                                        ALLOWED
          .... ...1      VDEVGCWE       X'01' GLOBAL CCW EXPECTED FOR
                                        THIS DEVICE
001D   29 Bitstring    1 VDEVCFLG       CONSOLE PROCESSING CONTROLS
          .1.. ....      VDEVPPA1       X'40' REFLECT PA1 KEY TO THE
                                        VIRTUAL MACHINE
          ..1. ....      VDEVGSUS       X'20' FULL SCREEN GUEST WAS
                                        SUSPENDED WITH UNIT EXCEPTION. CP
                                        MUST GENERATE AN UNSOLICITED
                                        DEVICE END TO RESUME GUEST
          ...1 ....      VDEVDING       X'10' dial in progress
          .... 1...      VDEVATTN       X'08' ATTENTION INTERRUPT MUST BE
                                        GENERATED
001E   30 Bitstring    1 VDEVFFLG       MINIDISK FLAGS
          1... ....      VDEVLNKS       X'80' STABLE MINIDISK LINK
          .1.. ....      VDEVLNKE       X'40' EXCLUSIVE MINIDISK LINK
          ..1. ....      VDEVDVFP       X'20' THE DEVICE IS A DEVNO
                                        DEFINED FULL-PACK MINIDISK
          ...1 ....      VDEVQDSK       X'10' The device is a VDISK
          .... 1...      VDEVFBA        X'08' FBA disk or minidisk
          .... .1..      VDEVRMLF       X'04' Minidisk can use real MPLF
                                        facility
          .... ..1.      VDEVSULF       X'02' Suppress CFLF and MPLF
001F   31 Bitstring    1 VDEVPFLG       DEVICE PROCESSING FLAG
          1... ....      VDEVCPCL       X'80' DEVICE CLOSED BY CP COMMAND
          .1.. ....      VDEVPURG       X'40' DEVICE CLOSED AND PURGED BY
                                        CP COMMAND
          ..1. ....      VDEVNRSM       X'20' DEVICE CANNOT RESUME
                                        CHANNEL PROGRAM
          ...1 ....      VDEVDPRE       X'10' DYMAMIC PATHING HAS BEEN
                                        REQUESTED
          .... 1...      VDEVTRCW       X'08' FORCE TRANSLATION OF
                                        CHANNEL PROGRAM FOR THIS DEVICE
          .... .1..      VDEVTENB       X'04' TAPE Device has not been
                                        enabled. Device End has not been
                                        presented.
          .... ..1.      VDEVSHRD       X'02' Multiuser device bit
          .... ...1      VDEVSHND       X'01' Multiuser/Detach ALL fails
                                        for vdev
0020   32 Bitstring   28 VDEVPMCW       PATH MANAGEMENT CONTROL WORD
003C   60 Signed       4 VDEVAIOR       POINTER TO THE ACTIVE IORBK
0040   64 Signed       4 VDEVNIOR       SSCH PNDING (NOT YET STARTED)
                                        IORBK
0044   68 Address      4 VDEVSIOR       IORBK HOLDING SENSE DATA FOR
                                        DEVICE
0048   72 Signed       4 VDEVIORQ       RDEV-TO-VDEV LOCK SWAPPING PIVOT
004C   76 Signed       4 VDEVPIOR       PENDING INTERRUPT IORBK
0050   80 Signed       4 VDEVENDQ       COMPLETION TASK QUEUE ANCHOR
0054   84 Address      4 VDEVDEOT       DELAYED ENDOP TRQBK ANCHOR
0058   88 Signed       4 VDEVRDEV       POINTER TO RDEV OF ACTUAL DEVICE
005C   92 Address      4 VDEVAEVT       POINTER TO LIST OF ASYNCHRONOUS
                                        EVENTS IN THIS VDEV.
0060   96 Address      4 VDEVREVT       POINTER TO RESERVED ASYNCHRONOUS
                                        EVENT
0064  100 Address      4 VDEVCEOT       POINTER TO 20 SECOND TIMER
0068  104 Address      4 VDEVLMSG       CFLF In-line Message Block
                                        Pointer
006C  108 Signed       4 VDEVIOCT       Count of virtual I/O requests
                                        issued to the virtual device.
                                        (See VDEVIOCA). Not applicable to
                                        consoles, virtual spool or I/O
                                        Assist devices.
0070  112 Dbl-Word     8 VDEVTIME (0)   TOD CLOCK AT DEVICE CREATION
0070  112 Signed       4 VDEVTIMH       HI ORDER TOD CLOCK ROUGHLY IN
                                        SECONDS
0074  116 Signed       4 VDEVTIML       LO ORDER TOD CLOCK
0078  120 Signed       4 VDEVSPEC (10)  DEVICE-DEPENDENT SPECIFICATIONS
00A0  160 Address      4 VDEVIOMI       Address of Virtual I/O Management
                                        Info
00A4  164 Address      4 VDEVUIOR       Pending unsolicited IORBK came in
                                        after unit check
00A8  168 Signed       4 VDEVIOCA       Count of actual I/O operations
                                        initiated by CP for this virtual
                                        device. Not applicable to
                                        consoles, virtual spool or I/O
                                        Assist devices. Notes : This
                                        value may be lower than the
                                        number of virtual I/O requests if
                                        data can be obtained thru MDC, or
                                        it may be higher, if a virtual
                                        I/O request is broken up by CP
                                        into more than one actual I/O
                                        request (e.g., a diagnose x'A4'
                                        request for blocks on multiple
                                        cylinders.
00AC  172 Signed       4 VDEVATIM       Time of device creation or last
                                        ACNT, whichever is later
00B0  176 Bitstring    1 VDEVIOP1       I/O PASS THROUGH FLAGS
          .1.. ....      VDEVIOPA       X'40' DEV IS OPERATING UNDER PASS
                                        THROUGH
          ..1. ....      VDEVIOPI       X'20' DEV BEING PUT UNDER I/O
                                        PASS THROUGH
          ...1 ....      VDEVIOPO       X'10' TAKE DEVICE OUT OF PASS
                                        THROUGH AT NEXT OPPORTUNITY
          .... 1...      VDEVIOPR       X'08' DEV BEING REMOVED FROM PASS
                                        THROUGH
          .... .1..      VDEVIOPS       X'04' User set I/O Assist off for
                                        the device
          .... ..1.      VDEVIOPX       X'02' DEVICE IS ELIGIBLE FOR XA
                                        I/O PASS THROUGH
          .... ...1      VDEVIOP3       X'01' DEVICE IS ELIGIBLE FOR 370
                                        I/O PASS THROUGH
00B1  177 Bitstring    1 VDEVMODL       VIRTUAL DEVICE MODEL NUMBER
00B2  178 Bitstring    1 VDEVCPIE       CHANNEL PATH IN ERROR MASK
00B3  179 Bitstring    1 VDEVCRDR       Count of I/O redrives to
                                        simulation
00B4  180 Signed       4 VDEVIUBK       I/O Assist Utilization Block
                                        Address
00B8  184 Bitstring    1 VDEVLCNT       CURRENT LINE COUNT
00B9  185 Bitstring    1 VDEVLTOD (3)   BYTES 2-4 OF TOD CLOCK WHEN LCNT
                                        RESET
00BC  188 Address      4 VDEVBKIA       Address of the BKIBK .This field
                                        is serialized by: .If = 0,
                                        compare-and-swap .if ^=0, BKILOCK
                                        held exclusive and
                                        .single-access-word-current-store
                                        .
00C0  192 Address      4 VDEVIPTS       Used by HCPIPT to contain a
                                        pointer to the SCHIB before a
                                        CSCH is done.
00C4  196 Bitstring    1 VDEVSCHT       Subchannel type (Must remain like
                                        .RDEVSCHT and SCHVISC)
          .... ....      VDEVSTP0       X'00' Type 0 Subchannel
          .11. ....      VDEVSTP3       X'60' Type 3 Subchannel
00C5  197 Bitstring    1 VDEVPMSK       Mask of path on which the
                                        Quiesce/Resume message was
                                        received
00C6  198 Bitstring    1 VDEVVNET       Virtual Network Simulation flags
          1... ....      VDEVNSIM       X'80' Virtual Network Simulation
                                        is ACTIVE (this means VDEVNIP is
                                        active)
00C7  199 Bitstring    1 *              RESERVED FOR FUTURE IBM USE
     RESERVED FIELDS FOR INSTALLATION USE
     THIS AREA IS PERMANENTLY AVAILABLE, BUT MAY BE MOVED TO ANOTHER OFFSET
     IN THE BLOCK AT A LATER RELEASE OF THE SYSTEM.
00C8  200 Signed       4 VDEVUSR1       RESERVED FOR INSTALLATION USE
00CC  204 Signed       4 VDEVUSR2       RESERVED FOR INSTALLATION USE
00D0  208 Signed       4 VDEVUSR3       RESERVED FOR INSTALLATION USE
00D4  212 Signed       4 VDEVUSR4       RESERVED FOR INSTALLATION USE
     End of Installation reserved fields
00D8  216 Signed       4 *              Reserved for future IBM use
00DC  220 Signed       4 VDEVRTMR       Pointer to RESET TRQBK. This
                                        field is .serialized by VDEV lock
                                        when it is .set and the dispatch
                                        lock when .the field is reset.
00E0  224 Signed       4 VDEVTRKF       First relative track for device
00E4  228 Signed       4 VDEVTRKL       Last relative track for device
00E8  232 Signed       4 VDEVARSL       Pointer to next Diag 254 pseudo
                                        vdev
00EC  236 Signed       4 VDEVARSI       Pointer to Diag 254 information
                                        block
00F0  240 Signed       4 VDEVARPV       Pointer to Diag 254 parent vdev
00F4  244 Bitstring    1 VDEVMDFG       Message Device Flag
          1... ....      VDEVMDEL       X'80' Message Device Deleted
00F5  245 Bitstring    1 * (3)          Reserved for future IBM use
00F8  248 Address      4 VDEVQDIO       Anchor for the QDIO Data Queues
00FC  252 Address      4 VDEVAIF        Anchor for Adapter IRPT Facility
                                        Block
0100  256 Address      4 VDEVSHTP       MULTIuser tape device forward
                                        pointer
0104  260 Address      4 VDEVIODD       CCW TRACE IODATA buffer
     Start VDEV overlay area
          00000108       VDEVBYSZ       *-VDEV VDEV size in bytes
          00000021       VDEVSIZE       ((*-VDEV)+7)/8 VDEV SIZE IN
                                        DOUBLE-WORDS
0078  120 Signed       4 VDEVPOSN (0)   VIRTUAL DASD ARM POSITION
0078  120 Signed       2 VDEVCYLN       VIRTUAL DASD CYLINDER NUMBER
          .111 1...      VDEVCYL0       VDEVCYLN,1 1ST BYTE OF CYLINDER
                                        INFORMATION
          .111 1..1      VDEVCYL1       VDEVCYLN+1,1 2ND BYTE OF CYLINDER
                                        INFORMATION
007A  122 Signed       2 VDEVHEAD       VIRTUAL DASD HEAD NUMBER
          .111 1.1.      VDEVHED0       VDEVHEAD,1 1ST BYTE OF HEAD
                                        INFORMATION
          .111 1.11      VDEVHED1       VDEVHEAD+1,1 2ND BYTE OF HEAD
                                        INFORMATION
007C  124 Signed       4 VDEVSEXT (0)   Minidisk Start of EXTent. May be
                                        in cylinders (CKD/ECKD) or
                                        blocks(FBA)
007C  124 Signed       2 *              Filler for beginning cylinder
007E  126 Signed       2 VDEVBCYL       Minidisk beginning cylinder
0080  128 Signed       4 VDEVEEXT (0)   Minidisk End of EXTent. May be in
                                        cylinders (CKD/ECKD) or
                                        blocks(FBA)
0080  128 Signed       2 *              Filler for last cylinder
0082  130 Signed       2 VDEVLCYL       Minidisk last cylinder
0084  132 Signed       4 VDEVLINK       Next VDEV on this MDISK (cf.
                                        VDEVLINP)
0088  136 Signed       4 VDEVBIOA       BLOCK I/O CONNECT BLOCK
008C  140 Signed       4 VDEVMDSK       MINI-DISK BLOCK FOR
                                        RESERVE/RELEASE
0090  144 Signed       4 VDEVBASE       BASE ADDRESS VDEV FOR
                                        MULT-EXPOSURE
0094  148 Bitstring    1 VDEVMNGT       LEVEL OF CONTROL FOR CACHED DASD
          1... ....      VDEVCA         X'80' CACHING AVAILABLE TO A
                                        MINIDISK
          .1.. ....      VDEVCNA        X'40' CACHING NOT AVAILABLE TO A
                                        MINIDISK
          ..1. ....      VDEVSCTL       X'20' SYSTEM CONTROL FOR CACHED
                                        DASD
          ...1 ....      VDEVDCTL       X'10' DEVICE CONTROL FOR CACHED
                                        DASD
          .... 1...      VDEVNCTL       X'08' NO CONTROL FOR CACHED DASD
0095  149 Bitstring    1 VDEVSFLG       DASD SPECIFIC FLAG
          ...1 ....      VDEVRFID       X'10' READ CACHE FASTWRITE ID CCW
                                        ISSUED
          .... 1...      VDEVSCPI       X'08' REFLECT A STATE-CHANGE
                                        INTERRUPT WHEN A
                                        STATE-CHANGE-PENDING CONDITION
                                        ENDS
0096  150 Bitstring    2 *              RESERVED FOR FUTURE IBM USE
0098  152 Signed       2 VDEVMPCT       COUNT OF EXTENTS DEFINED FOR THIS
                                        MINIDISK.
009A  154 Signed       2 *              RESERVED FOR IBM USE
009C  156 Signed       4 VDEVLINP       Prev VDEV on this MDISK
                                        (cf.VDEVLINK) (Previous of head
                                        is tail but Next of tail is
                                        zero.)
0078  120 Bitstring   36 *              RESERVED FOR FUTURE IBM USE
009C  156 Address      4 VDEVDYPT       Pointer to Tape Pathing Control
                                        Block
0078  120 Character    8 VDEVCUSR       RESTRICTED USERID FOR COUPLING
0080  128 Address      4 VDEVCTCA       ADDRESS OF CACBK
0084  132 Bitstring    4 VDEVCTCD       CTCA designation 3088 = 3088
                                        emulation SCTC = ESCON SCTC
                                        emulation BCTC = ESCON BCTC
                                        emulation CNC = ESCON CNC
                                        emulation
0088  136 Bitstring   24 *              Reserved for IBM use
     Overlay for a fully-simulated Virtual Network device. This definition
     is active whenever VDEVNSIM is ON.
          00000078       VDEVNIP        * Network Interface Properties
0078  120 Character    4 VDEVNIFT       Interface Type (e.g. c'IQDC')
007C  124 Signed       4 VDEVNIDX       Index of this NID in the adapter
0080  128 Address      4 VDEVNIC        Pointer to adapter NICBK
0084  132 Address      4 VDEVNID        Pointer to device NIDBK
0088  136 Address      4 VDEVSIGA       SIGA Simulation Routine
008C  140 Bitstring   20 *              Reserved for IBM Use
0078  120 Signed       4 *              RESERVED FOR FUTURE IBM USE
007C  124 Address      4 VDEVVSP        ADDRESS OF THE VIRTUAL SPOOL
                                        BLOCK
0080  128 Address      4 VDEVVPX        ADDRESS OF PRT EXTENSION BLOCK
0084  132 Address      4 VDEVVDS        DEVICE SIMULATION POINTER
0088  136 Bitstring   24 *              RESERVED FOR FUTURE IBM USE
0078  120 Address      4 VDEVMNPT       Pointer to Next Message Device
007C  124 Address      4 VDEVLCF        Address of Lock Facility Data
                                        Block
0080  128 Address      4 VDEVLFIO       Address Of Lock Facility IORBK
0084  132 Bitstring   28 *              Reserved for Future IBM Use
0020   32 Signed       4 VDEVPMW0 (0)   WORD 0 OF PMCW
0020   32 Signed       4 VDEVINTP       INTERRUPT PARAMETER
0024   36 Signed       4 VDEVPMW1 (0)   WORD 1 OF PMCW
0024   36 Bitstring    1 VDEVIRCF       SUBCHANNEL INTERUPT REQUEST CODE
          ..11 1...      CSWIRC         X'38' INTERRUPTION SUBCLASS
                                        EXTRACT MASK
          1... ....      CSWQDIO        X'80' QDIO Facility (Q) Available
          .... .1..      CSWIOINC       X'04' I/O Initiation Control bit
          .... ..1.      CSWHDVA        X'02' HALT DEVICE (HDV) Assist
                                        Control bit
          .... ...1      CSWABC         X'01' ALTERNATE BLOCK CONTROL BIT
          1... ....      CSWPATH        X'80' MODEL DEPENDENT PATH FOR
                                        MSG SUBCHANL
          ..11 111.      CSWMSV         X'3E' MESSAGE SUBCHANNEL VALID
                                        BITS
          .1.. ....      CSWMINS        X'40' MESSAGE DEVICE MAY BE
                                        INSTALLED
0025   37 Bitstring    1 VDEVCTL        SUBCHANNEL STATUS CONTROL
0026   38 Bitstring    2 VDEVDEV (0)    INTERNAL DEVICE NUMBER
0026   38 Bitstring    1 VDEVDEVC       CHANNEL NUMBER
0027   39 Bitstring    1 VDEVDEVU       DEVICE/CONTROL UNIT NUMBER
0028   40 Signed       4 VDEVPMW2 (0)   WORD 2 OF PMCW
0028   40 Bitstring    1 VDEVLPM        SUBCHANNEL LOGICAL PATH MASK
0029   41 Bitstring    1 VDEVPNOM       SUBCHANNEL PATH NOT OPERATIONAL
                                        MASK
002A   42 Bitstring    1 VDEVLPUM       SUBCHANNEL LAST PATH USED MASK
002B   43 Bitstring    1 VDEVPIM        SUBCHANNEL PATH INSTALLED MASK
002C   44 Signed       4 VDEVPMW3 (0)   WORD 3 OF PMCW
002C   44 Signed       2 VDEVMBI        MEASUREMENT BLOCK INDEX
002E   46 Bitstring    1 VDEVPOM        SUBCHANNEL OPERATIONAL MASK
002F   47 Bitstring    1 VDEVPAM        SUBCHANNEL PATH AVAILABLE MASK
0030   48 Bitstring    1 VDEVCPID (8)   CHANNEL PATH IDENTIFIERS 0 - 7
0038   56 Signed       4 VDEVPMW6 (0)   WORD 6 OF PMCW
0038   56 Bitstring    1 VDEVZONE       ZONE
0039   57 Bitstring    1 VDEVVISC       GUEST ISC
          .11. ....      VDEVADM        X'60' Type of Subchannel is ADM
                                        (ST=3)
          .1.. ....      VDEVMSGS       X'40' Type of Subchannel is
                                        Message
          ..1. ....      VDEVDYN        X'20' Type of Subchaneel is DYN
                                        I/O (ST=1)
003A   58 Bitstring    1 *              RESERVED
003B   59 Bitstring    1 VDEVECFG       EXTENDED CONTROL FLAGS
0010   16 Bitstring    1 VDEVSUBL       LEFT DIGIT OF SUBCHANNEL NUMBER
0011   17 Bitstring    1 VDEVSUBR       RIGHT DIGIT OF SUBCHANNEL NUMBER

 

VDEV Storage Layout

          
*** VDEV - VIRTUAL DEVICE CONTROL BLOCK
*
*     +---------------------------+---------------------------+
*   0 |         VDEVFPNT          |         VDEVBPNT          |
*     +---------------------------+---------------------------+
*   8 |         VDEVLOWN          |         VDEVTSKQ          |
*     +-------------+------+------+---------------------------+
*  10 |  VDEVSUB    |:VCLAS|:VTYPE|         VDEVUSER          |
*     +------+------+------+------+------+------+------+------+
*  18 |:VSTAT|:VWAIT|:VAFLG|:VBFLG|:VDFLG|:VCFLG|:VFFLG|:VPFLG|
*     +------+------+------+------+------+------+------+------+
*  20 |                                                       |
*     =                       VDEVPMCW                        =
*     |                           +---------------------------+
*  38 |                           |         VDEVAIOR          |
*     +---------------------------+---------------------------+
*  40 |         VDEVNIOR          |         VDEVSIOR          |
*     +---------------------------+---------------------------+
*  48 |         VDEVIORQ          |         VDEVPIOR          |
*     +---------------------------+---------------------------+
*  50 |         VDEVENDQ          |         VDEVDEOT          |
*     +---------------------------+---------------------------+
*  58 |         VDEVRDEV          |         VDEVAEVT          |
*     +---------------------------+---------------------------+
*  60 |         VDEVREVT          |         VDEVCEOT          |
*     +---------------------------+---------------------------+
*  68 |         VDEVLMSG          |         VDEVIOCT          |
*     +---------------------------+---------------------------+
*  70 |         VDEVTIMH          |         VDEVTIML          |
*     +---------------------------+---------------------------+
*  78 |                                                       |
*     =                       VDEVSPEC                        =
*     |                                                       |
*     +---------------------------+---------------------------+
*  A0 |         VDEVIOMI          |         VDEVUIOR          |
*     +---------------------------+---------------------------+
*  A8 |         VDEVIOCA          |         VDEVATIM          |
*     +------+------+------+------+---------------------------+
*  B0 |:VIOP1|:VMODL|:VCPIE|:VCRDR|         VDEVIUBK          |
*     +------+------+------+------+---------------------------+
*  B8 |:VLCNT|     VDEVLTOD       |         VDEVBKIA          |
*     +------+--------------------+------+------+------+------+
*  C0 |         VDEVIPTS          |:VSCHT|:VPMSK|:VVNET|//////|
*     +---------------------------+------+------+------+------+
*  C8 |         VDEVUSR1          |         VDEVUSR2          |
*     +---------------------------+---------------------------+
*  D0 |         VDEVUSR3          |         VDEVUSR4          |
*     +---------------------------+---------------------------+
*  D8 |///////////////////////////|         VDEVRTMR          |
*     +---------------------------+---------------------------+
*  E0 |         VDEVTRKF          |         VDEVTRKL          |
*     +---------------------------+---------------------------+
*  E8 |         VDEVARSL          |         VDEVARSI          |
*     +---------------------------+------+--------------------+
*  F0 |         VDEVARPV          |:VMDFG|////////////////////|
*     +---------------------------+------+--------------------+
*  F8 |         VDEVQDIO          |         VDEVAIF           |
*     +---------------------------+---------------------------+
* 100 |         VDEVSHTP          |         VDEVIODD          |
*     +---------------------------+---------------------------+
* 108
*
*** VDEV - VIRTUAL DEVICE CONTROL BLOCK
          
*** Overlay for VDEVSPEC in VDEV
*
*     +-------------+-------------+-------------+-------------+
*  78 |  VDEVCYLN   |  VDEVHEAD   |/////////////|  VDEVBCYL   |
*     +-------------+-------------+-------------+-------------+
*  80 |/////////////|  VDEVLCYL   |         VDEVLINK          |
*     +-------------+-------------+---------------------------+
*  88 |         VDEVBIOA          |         VDEVMDSK          |
*     +---------------------------+------+------+-------------+
*  90 |         VDEVBASE          |:VMNGT|:VSFLG|/////////////|
*     +-------------+-------------+------+------+-------------+
*  98 |  VDEVMPCT   |/////////////|         VDEVLINP          |
*     +-------------+-------------+---------------------------+
*  A0
*
*** Overlay for VDEVSPEC in VDEV
          
*** Overlay for VDEVSPEC in VDEV
*
*     +-------------------------------------------------------+
*  78 |///////////////////////////////////////////////////////|
*     =///////////////////////////////////////////////////////=
*     |///////////////////////////+---------------------------+
*  98 |///////////////////////////|         VDEVDYPT          |
*     +---------------------------+---------------------------+
*  A0
*
*** Overlay for VDEVSPEC in VDEV
          
*** Overlay for VDEVSPEC in VDEV
*
*     +-------------------------------------------------------+
*  78 |                       VDEVCUSR                        |
*     +---------------------------+---------------------------+
*  80 |         VDEVCTCA          |         VDEVCTCD          |
*     +---------------------------+---------------------------+
*  88 |///////////////////////////////////////////////////////|
*     =///////////////////////////////////////////////////////=
*     |///////////////////////////////////////////////////////|
*     +-------------------------------------------------------+
*  A0
*
*** Overlay for VDEVSPEC in VDEV
          
*** Overlay for VDEVSPEC in VDEV
*
*     +---------------------------+---------------------------+
*  78 |         VDEVNIFT          |         VDEVNIDX          |
*     +---------------------------+---------------------------+
*  80 |         VDEVNIC           |         VDEVNID           |
*     +---------------------------+---------------------------+
*  88 |         VDEVSIGA          |///////////////////////////|
*     +---------------------------+///////////////////////////|
*     |///////////////////////////////////////////////////////|
*     |///////////////////////////////////////////////////////|
*     +-------------------------------------------------------+
*  A0
*
*** Overlay for VDEVSPEC in VDEV
          
*** Overlay for VDEVSPEC in VDEV
*
*     +---------------------------+---------------------------+
*  78 |///////////////////////////|         VDEVVSP           |
*     +---------------------------+---------------------------+
*  80 |         VDEVVPX           |         VDEVVDS           |
*     +---------------------------+---------------------------+
*  88 |///////////////////////////////////////////////////////|
*     =///////////////////////////////////////////////////////=
*     |///////////////////////////////////////////////////////|
*     +-------------------------------------------------------+
*  A0
*
*** Overlay for VDEVSPEC in VDEV
          
*** Overlay for VDEVSPEC in VDEV
*
*     +---------------------------+---------------------------+
*  78 |         VDEVMNPT          |         VDEVLCF           |
*     +---------------------------+---------------------------+
*  80 |         VDEVLFIO          |///////////////////////////|
*     +---------------------------+///////////////////////////|
*  88 |///////////////////////////////////////////////////////|
*     =///////////////////////////////////////////////////////=
*     |///////////////////////////////////////////////////////|
*     +-------------------------------------------------------+
*  A0
*
*** Overlay for VDEVSPEC in VDEV
          
*** Overlay for VDEVPMCW in VDEV
*
*     +---------------------------+------+------+------+------+
*  20 |         VDEVINTP          |:VIRCF|:VCTL |:VDEVC|:VDEVU|
*     +------+------+------+------+------+------+------+------+
*  28 |:VLPM |:VPNOM|:VLPUM|:VPIM |  VDEVMBI    |:VPOM |:VPAM |
*     +------+------+------+------+-------------+------+------+
*  30 |                       VDEVCPID                        |
*     +------+------+------+------+---------------------------+
*  38 |:VZONE|:VVISC|//////|:VECFG| 3C
*     +------+------+------+------+
*
*** Overlay for VDEVPMCW in VDEV
          
*** Overlay for VDEVSUB in VDEV
*
*     +------+------+
*  10 |:VSUBL|:VSUBR| 12
*     +------+------+
*
*** Overlay for VDEVSUB in VDEV

 

VDEV Cross Reference

Symbol         Dspl Value
-------------- ---- -----
CLASAIF        0012 FF
CLASDASD       0012 04
CLASGRAF       0012 40
CLASGRFR       0012 41
CLASPOOL       0012 20
CLASSPEC       0012 02
CLASSVCM       0012 10
CLASSWCH       0012 01
CLASTAPE       0012 08
CLASTERM       0012 80
CSWABC         0024 01
CSWHDVA        0024 02
CSWIOINC       0024 04
CSWIRC         0024 38
CSWMINS        0024 40
CSWMSV         0024 3E
CSWPATH        0024 80
CSWQDIO        0024 80
TYPAFP1        0013 27
TYPBSC         0013 88
TYPCLUST       0013 30
TYPCONS        0013 40
TYPCTCA        0013 80
TYPDYNIO       0013 02
TYPELAN        0013 28
TYPE3SCH       0013 04
TYPFBA         0013 28
TYPFCP         0013 10
TYPHDLC        0013 24
TYPIBM1        0013 10
TYPIC          0013 04
TYPILAN        0013 28
TYPMSGF        0013 01
TYPOSA         0013 20
TYPPRT         0013 20
TYPPUN         0013 40
TYPRDR         0013 80
TYPSDLC        0013 08
TYPSYS         0013 10
TYPTELE2       0013 20
TYPTTY         0013 20
TYPUNDEF       0013 1C
TYPUNSUP       0013 01
TYPVAFP        0013 2A
TYP1050        0013 14
TYP1052        0013 40
TYP1403        0013 21
TYP2032        0013 20
TYP2250        0013 04
TYP2305        0013 08
TYP2501        0013 81
TYP2540P       0013 42
TYP2540R       0013 82
TYP2700        0013 80
TYP2741        0013 18
TYP3SIM        0013 04
TYP3088        0013 80
TYP3178        0013 40
TYP3179        0013 40
TYP3180        0013 40
TYP3190        0013 40
TYP32XX        0013 22
TYP3203        0013 26
TYP3211        0013 22
TYP3215        0013 40
TYP3250        0013 04
TYP3262        0013 23
TYP3270        0013 40
TYP3271        0013 20
TYP3275        0013 10
TYP3277        0013 80
TYP3278        0013 40
TYP3279        0013 40
TYP3284        0013 08
TYP3286        0013 08
TYP3287        0013 09
TYP3287L       0013 08
TYP3288        0013 08
TYP3289        0013 09
TYP3289L       0013 08
TYP3290        0013 40
TYP3330        0013 40
TYP3340        0013 20
TYP3350        0013 10
TYP3350C       0013 11
TYP3350D       0013 12
TYP3370        0013 02
TYP3375        0013 80
TYP3380        0013 04
TYP3390        0013 82
TYP3420        0013 10
TYP3422        0013 80
TYP3424        0013 42
TYP3430        0013 20
TYP3480        0013 40
TYP3490        0013 81
TYP3505        0013 84
TYP3525        0013 44
TYP3590        0013 83
TYP3704        0013 40
TYP3705        0013 40
TYP3767        0013 18
TYP3800        0013 28
TYP3820        0013 25
TYP3851        0013 02
TYP3890        0013 08
TYP4245        0013 24
TYP4248        0013 29
TYP5080        0013 06
TYP9032        0013 80
TYP9033        0013 40
TYP9332        0013 21
TYP9335        0013 22
TYP9336        0013 24
TYP9345        0013 81
TYP9348        0013 44
VDEVACTV       0018 F0
VDEVADM        0039 60
VDEVAEVT       005C
VDEVAFLG       001A
VDEVAIF        00FC
VDEVAIOR       003C
VDEVARPV       00F0
VDEVARSI       00EC
VDEVARSL       00E8
VDEVATIM       00AC
VDEVATTN       001D 08
VDEVBASE       0090
VDEVBCC0       001B 80
VDEVBCYL       007E
VDEVBFLG       001B
VDEVBIOA       0088
VDEVBKIA       00BC
VDEVBPCI       001B 40
VDEVBPNT       0004
VDEVBSUI       001B 20
VDEVBUSY       0018 80
VDEVBYSZ       0104 00000108
VDEVCA         0094 80
VDEVCATT       0018 01
VDEVCEOT       0064
VDEVCFLG       001D
VDEVCLAS       0012
VDEVCLRF       0018 20
VDEVCNA        0094 40
VDEVCODE       0012
VDEVCPCL       001F 80
VDEVCPID       0030
VDEVCPIE       00B2
VDEVCRDR       00B3
VDEVCTCA       0080
VDEVCTCD       0084
VDEVCTL        0025
VDEVCUSR       0078
VDEVCYLN       0078
VDEVCYL0       0078 78
VDEVCYL1       0078 79
VDEVDCTL       0094 10
VDEVDED        001A 08
VDEVDEOT       0054
VDEVDEV        0026
VDEVDEVC       0026
VDEVDEVU       0027
VDEVDFLG       001C
VDEVDIAL       001C 20
VDEVDING       001D 10
VDEVDPRE       001F 10
VDEVDTCH       001A 01
VDEVDVFP       001E 20
VDEVDYN        0039 20
VDEVDYPT       009C
VDEVECFG       003B
VDEVEEXT       0080
VDEVENAB       001C 40
VDEVENDQ       0050
VDEVFBA        001E 08
VDEVFFLG       001E
VDEVFPNT       0000
VDEVFPO        001A 02
VDEVFULL       001A 10
VDEVGCWE       001C 01
VDEVGSUS       001D 20
VDEVHEAD       007A
VDEVHED0       007A 7A
VDEVHED1       007A 7B
VDEVHLTF       0018 10
VDEVIMRS       0019 80
VDEVINTP       0020
VDEVINTV       001A 80
VDEVIOCA       00A8
VDEVIOCT       006C
VDEVIODD       0104
VDEVIOMI       00A0
VDEVIOPA       00B0 40
VDEVIOPI       00B0 20
VDEVIOPO       00B0 10
VDEVIOPR       00B0 08
VDEVIOPS       00B0 04
VDEVIOPX       00B0 02
VDEVIOP1       00B0
VDEVIOP3       00B0 01
VDEVIORQ       0048
VDEVIPTS       00C0
VDEVIRCF       0024
VDEVIUBK       00B4
VDEVLCF        007C
VDEVLCNT       00B8
VDEVLCYL       0082
VDEVLFIO       0080
VDEVLINK       0084
VDEVLINP       009C
VDEVLMSG       0068
VDEVLNKE       001E 40
VDEVLNKS       001E 80
VDEVLOCK       0008
VDEVLOWN       0008
VDEVLPM        0028
VDEVLPUM       002A
VDEVLTOD       00B9
VDEVMBI        002C
VDEVMDEL       00F4 80
VDEVMDFG       00F4
VDEVMDSK       008C
VDEVMNGT       0094
VDEVMNPT       0078
VDEVMODL       00B1
VDEVMPCT       0098
VDEVMPLX       001A 04
VDEVMSGS       0039 40
VDEVNCTL       0094 08
VDEVNIC        0080
VDEVNID        0084
VDEVNIDX       007C
VDEVNIFT       0078
VDEVNIOR       0040
VDEVNIP        0088 00000078
VDEVNOTO       001C 08
VDEVNRSM       001F 20
VDEVNSEG       001C 02
VDEVNSIM       00C6 80
VDEVPAM        002F
VDEVPFLG       001F
VDEVPIM        002B
VDEVPIOR       004C
VDEVPMCW       0020
VDEVPMSK       00C5
VDEVPMW0       0020
VDEVPMW1       0024
VDEVPMW2       0028
VDEVPMW3       002C
VDEVPMW6       0038
VDEVPNOM       0029
VDEVPOM        002E
VDEVPOSN       0078
VDEVPPA1       001D 40
VDEVPRCE       0018 40
VDEVPURG       001F 40
VDEVQACT       001B 08
VDEVQDIO       00F8
VDEVQDSK       001E 10
VDEVQUED       0018 02
VDEVRDEV       0058
VDEVREVT       0060
VDEVRFID       0095 10
VDEVRMLF       001E 04
VDEVRO         001C 80
VDEVRPND       0018 04
VDEVRSRL       001C 04
VDEVRTMR       00DC
VDEVSCHT       00C4
VDEVSCPI       0095 08
VDEVSCTL       0094 20
VDEVSDIA       001C 10
VDEVSEXT       007C
VDEVSFLG       0095
VDEVSHND       001F 01
VDEVSHRD       001F 02
VDEVSHTP       0100
VDEVSIGA       0088
VDEVSIOR       0044
VDEVSIZE       0104 00000021
VDEVSPEC       0078
VDEVSTAT       0018
VDEVSTP0       00C4 00
VDEVSTP3       00C4 60
VDEVSUB        0010
VDEVSUBL       0010
VDEVSUBR       0011
VDEVSULF       001E 02
VDEVSUSP       0018 08
VDEVTDSK       001A 40
VDEVTENB       001F 04
VDEVTIME       0070
VDEVTIMH       0070
VDEVTIML       0074
VDEVTRCW       001F 08
VDEVTRKF       00E0
VDEVTRKL       00E4
VDEVTSKQ       000C
VDEVTYPE       0013
VDEVUIOR       00A4
VDEVUSER       0014
VDEVUSR1       00C8
VDEVUSR2       00CC
VDEVUSR3       00D0
VDEVUSR4       00D4
VDEVVDS        0084
VDEVVISC       0039
VDEVVNET       00C6
VDEVVPX        0080
VDEVVSIM       001A 20
VDEVVSP        007C
VDEVWAIT       0019
VDEVWINT       0019 40
VDEVZONE       0038

This information is based on z/VM V4R3.0. Last updated on 1 May 2002 at 10:51:41 EDT.
Copyright IBM Corporation, 1990, 2002