RDCBK Back to Index page
 
Prolog 
Control Block Contents 
   RDCBK 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.


  RDCBK Prolog Top of page
 
 NAME       : HCPRDCBK
 DESCRIPTION: Real Device Characteristics Block
 DSECT      : RDCBK
 FUNCTION   : The Real Device Characteristics Block contains
              DEVICE/CONTROL UNIT information.  This data is
              divided into two parts:
              - static device information.
              - 64 bytes of information returned from a
              RDC (Read Device Characteristics) CCW.
 LOCATED BY : RDEVRDCA Field of the RDEV.
              SYSRDCA  Field of the SYSCM
              - Address of the first RDCBK entry
 CREATED BY : RDCBK'S are dynamic and in part are created by the
              device specific initialization modules.
              RDCBK'S also acquire their data from a Read Device
              Characteristic CCW during device initialization.
 DELETED BY : RDCBK'S are created at Initialization or the
              Vary Online command and are never deleted.
 SERIALIZED : RDEV Lock
 RELOCATION CONSIDERATIONS : None
 COMMENTS   : When using this block for FBA DASD, the
              first 8 bytes should not be included
              since the RDC CCW doesn't return this
              information.  Therefore to use this
              DSECT when issuing the RDC CCW, the data
              returned must be placed starting at
              RDCFBARE.
              Notes      : Field RDCFBARE is defined
              starting at location RDCOPER (RDCFEAT+2).
 
 
  RDCBK Control Block Content Top of page
 

 RDCBK DSECT Top of page
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure RDCBK Real Device Characteristics Block The first 64 bytes contain the architected RDC info. 0000 0 Bitstring 64 RDCDATA (0) RDC 64 BYTES RETURNED 0000 0 Bitstring 2 RDCCUID CONTROL UNIT IDENTIFIER 0002 2 Bitstring 1 RDCCUMN CONTROL UNIT MODEL 0003 3 Bitstring 2 RDCDVID DEVICE IDENTIFIER (= Device TYPE) 0005 5 Bitstring 1 RDCDVMN DEVICE MODEL 0006 6 Bitstring 4 RDCFEAT (0) Device and storage control 0006 6 Bitstring 2 * Device and stg control bytes 0-1 0008 8 Bitstring 1 RDCEXFC Extended Function Capacity .1.. .... RDCXRC X'40' RDCXRC Device supports XRC ..1. .... RDCPPRC X'20' RDCPPRC Device Support PPRC CCWs 0009 9 Bitstring 1 RDCFEAT3 Device and stg control byte 3 .1.. .... RDCMPLF X'40' RDCMPLF Device is attached to a control unit which supports MPLF ..1. .... RDCRCACH X'20' RDCRCACH Device is attached to a control unit which supports record cache facilities. 000A 10 Bitstring 2 RDCOSCOD (0) OS DEVICE CODES 000A 10 Bitstring 1 RDCOSCLS OS DEVICE CLASS CODE 000B 11 Bitstring 1 RDCOSTYP OS DEVICE TYPE CODE 000C 12 Bitstring 28 RDCDEVF1 DEVICE SPECIFIC FIELD 1 0028 40 Bitstring 1 RDCMDRID MDR IDENTIFIER 0029 41 Bitstring 1 RDCOBRID OBR IDENTIFIER 002A 42 Bitstring 22 RDCDEVF2 DEVICE SPECIFIC FIELD 2 00000040 RDCDALEN (*-RDCDATA) LENGTH OF RDC DATA RETURNED Static device information 0040 64 Address 4 RDCNEXT ADDR OF NEXT RDCBK IN CHAIN 0044 68 Character 4 RDCDCHAR Device ID in EBCDIC. 0048 72 Bitstring 1 RDCFLGS (0) DEVICE STATUS FLAG 0048 72 Bitstring 1 RDCSTATS DEVICE RDC STATUS 1... .... RDCSUPT X'80' RDCSUPT DEVICE SUPPORTS RDC CCW .1.. .... RDCNCRNT X'40' RDCNCRNT RDCBK IS NOT CURRENT FOR DEVICE ..1. .... RDCOFFSP X'20' RDCOFFSP ERP should be done for this ... device when it is offline. ...1 .... RDCFBA X'10' RDCFBA RDCBK is for an FBA DASD .... ...1 RDCSSUPT X'01' RDCSSUPT DEVICE SHOULD SUPPORT RDC CCW 0049 73 Bitstring 1 RDCCUFT Control unit features flag 1... .... RDCCASS X'80' RDCCASS Device is attached to a caching control unit. .1.. .... RDCSICS X'40' RDCSICS Device is attached to a control unit which supports special intercept condition. ..1. .... RDCNOSR X'20' RDCNOSR Device is attached to a control unit which does not support suspend/resume ...1 .... RDCASYNC X'10' RDCASYNC Device is attached to a control unit which supports asynchronous processing. .... 1... RDCRSTNT X'08' RDCRSTNT Device is attached to a control unit which supports reset notification processing. .... .1.. RDCCUIBK X'04' RDCCUIBK Device is attached to a control unit which is described by a CUIBK .... ..1. RDCFLASH X'02' RDCFLASH Device supports FLASHCOPY VM/XA INTERNAL DEVICE TYPE CODES 004A 74 Bitstring 1 RDCDVCLS VM/XA DEVICE CLASS CODE 004B 75 Bitstring 1 RDCDVTYP VM/XA DEVICE TYPE CODE 004C 76 Bitstring 1 RDCDVFTR VM/XA DEVICE FEATURE CODE Additional Initialization Verification Fields 004D 77 Bitstring 1 RDCRDMN USER DEFINED DEVICE MODEL NUMBER 004E 78 Bitstring 1 RDCRC Invalid I/O configuration id. 004F 79 Bitstring 1 RDCDVSCL VM/ESA device subclass code CP SYSTEM SERVICES AREA 0050 80 Address 4 RDCERPA ERROR RECOVERY PROCEDURE ADDRESS 0054 84 Address 4 RDCERSA ERROR RECOVERY SPECIFIC ADDRESS 0058 88 Address 4 RDCCRSA CHANNEL ERROR RECOVERY SPEC. ADDR 005C 92 Address 4 RDCCPTA CHANNEL PROGRAM TABLE ADDRESS 0060 96 Address 4 RDCCMTBA DEVICE MANAGEMENT COMMAND TABLE @ 0064 100 Address 4 RDCLERPA LIMITED ERROR RECOVERY PROC ADDR 0068 104 Address 4 RDCLERSA LIMITED ERROR RECOVERY SPEC ADDR 006C 108 Address 4 RDCSQUY SENSE DATA QUERY ROUTINE ADDR 0070 112 Address 4 RDCHERSA HPF error recovery specific addr 0074 116 Signed 4 * Reserved for IBM use Device Specific Area 0078 120 Bitstring 80 RDCDSPEC Device specific area 000000C8 RDCLEN (*-RDCBK) LENGTH OF THE RDCBK IN BYTES 00000019 RDCSIZE (*-RDCBK+7)/8 LENGTH OF THE RDCBK IN DOUBLEWORDS The area below is for DASD redefinitons: 0078 120 Bitstring 2 * DASD - IBM RESERVED 007A 122 Bitstring 2 RDCPCYL DASD - NUMBER OF PAGES/CYLINDER 007C 124 Signed 2 RDCDEVLM DASD (CP-owned only) Number of slots to be allocated before switching to another DASD. 007E 126 Signed 2 RDCMAXPR DASD (CP-owned only) Theoretical paging rate based on average SEEK time divided into 1 second multipled by 10. 0080 128 Signed 2 RDCMASK DASD (CP-owned only) Used as a mask for slot allocation of records on cylinder and head zero. It is a mask for the total number of records that are not used for that track. 0082 130 Bitstring 1 RDCPPTRK DASD - Number of pages/track 4K 0083 131 Bitstring 1 RDCTPGEX DASD (CP-owned only) Count of DASD paging exposures. 00000001 RDCSNGEX 1 DASD (CP-owned only) Code used to determine if the DASD is a single exposure device. 0084 132 Bitstring 1 RDCPAGFG DASD (CP-owned only) Paging flags to indicate more characteristics about the DASD. .... ...1 RDCCPOWN X'01' RDCCPOWN DASD (CP-owned only) Indicates that this DASD is fully supported by CP. .... ..1. RDCMINID X'02' RDCMINID DASD (CP-owned only) Indicates that this DASD supports paging I/O for minidisk-pools. .... .1.. RDCPAGOY X'04' RDCPAGOY DASD (CP-owned only) Used mainly for 3350 11/21 which indicates that paging only space is allowed for this volume. 0085 133 Bitstring 1 RDCFLAG DASD flags .... ..1. RDCLRE X'02' RDCLRE DASD This DASD/control unit combination supports the Locate Record Extended CCW .... ...1 RDCMDC X'01' RDCMDC DASD This device type is supported by minidisk cache. 0086 134 Bitstring 1 * (2) Reserved for IBM use 0088 136 Address 4 RDCCPVOL DASD (CP-owned only) Address of the queue that this DASD would reside on if it is fully CP supported. The queue is located in HCPPGD. 008C 140 Signed 4 RDCMLOAD DASD (CP-owned only) Initial MLOAD for paging DASD based on average SEEK time divided by 16 micro seconds. 0090 144 Bitstring 1 RDCNPSEC (14) DASD (CP-owned only) Sector numbers for a CP-owned or minidisk-pool DASD that is formatted with 4k records without pad records. 009E 158 Bitstring 1 RDCSECTR (14) DASD (CP-owned only) The sector numbers for a CP-owned DASD that was formatted with CPFORMAT. The tracks are formatted with pad records. 00AC 172 Signed 4 RDCDPSBK Address of DPSBK table. Contains the number of records per track of each standard or non-standard record size. 00B0 176 Signed 4 RDCQRTIM Max number of minutes to respond to a Quiesce/Resume request 00B4 180 Bitstring 20 * Reserved for IBM use *** Bytes defined for CKD/ECKD DASD RDC Features field 0006 6 Bitstring 1 RDCVFAC Program-visible facilities .... 1... RDCSSCSP X'08' RDCSSCSP Set System Characteristics is supported .... .1.. RDCSSCRC X'04' RDCSSCRC Set System Characteristics has been received for this Path Group .... ..1. RDCPRFX X'02' RDCPRFX Prefix CCW supported & enabled 0007 7 Bitstring 1 RDCVFAC2 Program-visible facilities 2 .1.. .... RDCVPAVU X'40' RDCVPAVU PAV is unsupported for this DASD, only valid if RDCSSCRC is set 0008 8 Bitstring 1 * Reserved for future IBM use 0009 9 Bitstring 1 RDCSFEAT SUBSYSTEM FEATURES SUPPORTED 1... .... RDCCFW X'80' RDCCFW SUPPORTS NON-RETENTIVE DATA (CACHE FAST WRITE) .1.. .... RDCCFLF X'40' RDCCFLF SUPPORTS LOCK FACILITY (CFLF) RPQ ..1. .... RDCRCS X'20' RDCRCS SUPPORTS RECORD CACHE RPQ .... 1... RDCDUP X'08' RDCDUP Supports Duplex Pairs .... .1.. RDCDFW X'04' RDCDFW SUPPORTS DASD FAST WRITE *** Bytes defined for CKD/ECKD DASD RDC Field 1 000C 12 Bitstring 2 RDCMCYL NUMBER OF PRIMARY CYL 000E 14 Bitstring 2 RDCTPCYL NUMBER OF TRACKS PER CYLINDER 0010 16 Bitstring 1 RDCSECT NUMBER OF SECTORS 0011 17 Bitstring 3 RDCTOTRK TOTAL TRACK LENGTH USABLE 0014 20 Bitstring 2 RDCHA LENGTH OF HOME ADDR AND RECRD ZERO 0016 22 Bitstring 1 RDCMODE TRACK CAP CALCULATION FORMULA CODE 0017 23 Bitstring 5 RDCMDFR TRACK CAP CALCULATION FACTORS 001C 28 Bitstring 2 RDCALTCL ADDR OF FIRST ALTERNATE CYLINDER 001E 30 Bitstring 2 RDCALTRX NUMBER OF ALTERNATE TRACKS 0020 32 Bitstring 2 RDCDIAG ADDR OF FIRST DIAGNOSTIC CYLINDER 0022 34 Bitstring 2 RDCDIAGN NUMBER OF DIAGNOSTIC TRACKS 0024 36 Bitstring 2 RDCDVCYL ADDRESS OF FIRST DEVICE CYLINDER 0026 38 Bitstring 2 RDCDVTRK NUMBER OF DEVICE SUPPORT TRACKS *** Bytes defined for CKD/ECKD DASD RDC Field 2 002A 42 Bitstring 1 RDCCUTYP CONTROL UNIT TYPE CODE 002B 43 Bitstring 1 RDCMRTPL MAX READ TRACKSET PARAMETER LENGTH 002C 44 Bitstring 2 RDCMXR0 MAXIMUM RECORD ZERO DATA LENGTH 002E 46 Bitstring 1 RDC46 DASD SPECIFIC RESERVED 002F 47 Bitstring 1 RDCTRSSZ TRACK SET SIZE 0030 48 Bitstring 1 RDCATCCF ADDITIONAL TRACK CAPACITY CALCULATION FACTOR 0031 49 Bitstring 2 RDC4950 DASD SPECIFIC RESERVED 0033 51 Bitstring 1 RDCLTHRS CONCOPY LOWER THRESHOLD 0034 52 Bitstring 1 RDC52 DASD SPECIFIC RESERVED 0035 53 Bitstring 1 RDCUTHRS CONCOPY UPPER THRESHOLD 0036 54 Bitstring 1 RDCDCUF Device and control unit features .... .1.. RDCMIRR X'04' RDCMIRR Device is Mirroring capable 0037 55 Bitstring 1 RDC55 DASD SPECIFIC RESERVED 0038 56 Bitstring 1 RDCRCUC REAL CU CODE 0039 57 Bitstring 1 RDCOBRCO OBR CODE 003A 58 Bitstring 2 RDC5859 DASD SPECIFIC RESERVED 003C 60 Signed 4 RDCMCYL32 NUMBER OF PRIMARY CYLINDERS The area below is for FBA DASD: *** Bytes defined for FBA RDCFEAT field. 0006 6 Bitstring 2 * Reserved for IBM use. 0008 8 Bitstring 1 RDCFBARE (0) Start of FBA architected area 0008 8 Bitstring 1 RDCOPER Device operation modes .1.. .... RDCOVRRN X'40' RDCOVRRN Overrunnable device ..1. .... RDCBURST X'20' RDCBURST Burst mode device ...1 .... RDCDATCH X'10' RDCDATCH Data chaining supported 0009 9 Bitstring 1 RDCFBAFT Features .1.. .... RDCREMOV X'40' RDCREMOV Removable media feature ..1. .... RDCRRLSE X'20' RDCRRLSE Reserve/release feature .... 1... RDCMOVAM X'08' RDCMOVAM Movable access mechanism .... .1.. RDCFIXHM X'04' RDCFIXHM Fixed head mechanism *** Bytes defined for FBA DASD RDC Field 1 000C 12 Bitstring 2 RDCRECSZ Physical record size 000E 14 Bitstring 4 RDCBLKCG Blocks per cyclical group (track) 0012 18 Bitstring 4 RDCBLKAP Blocks per access position (cyl) 0016 22 Bitstring 4 RDCBLKMA Blocks under movable access 001A 26 Bitstring 4 RDCBLKFA Blocks under fixed access 001E 30 Bitstring 1 * (2) Reserved for IBM use 0020 32 Bitstring 2 RDCBLKCE Blocks in CE area 0022 34 Bitstring 1 * (6) Reserved for IBM use The area below is for tape drives: *** Bytes defined for TAPE RDCFEAT field. 0006 6 Bitstring 2 * Reserved for IBM use. 0008 8 Bitstring 1 RDCFET3 RDC Data byte 8 ...1 .... RDCTRAM X'10' RDCTRAM Tape has Asyncronous Msg support .... 1... RDCTCUIR X'08' RDCTCUIR Tape supports CUIR (SIC) .... .1.. RDCCPNOP X'04' RDCCPNOP Supports Channel Path NOP command 0009 9 Bitstring 1 RDCFETFE Features .1.. .... RDCCMPCT X'40' RDCCMPCT RDC DATA BYTE 9 COMPACTION IND. ...1 .... RDCLIBON X'10' RDCLIBON Library Manager online .... 1... RDCLAFIN X'08' RDCLAFIN Library Attachment Ftr installed *** Bytes defined for TAPE RDC Field 1 000C 12 Bitstring 28 RDCTAPE1 (0) TAPE SPECIFIC RESERVED 000C 12 Bitstring 5 * Reserved 0011 17 Bitstring 1 RDCFET4 RDC Data Byte 17 ...1 .... RDCB17B3 X'10' RDCB17B3 RDC Data Byte 17 Bit 3 0012 18 Bitstring 13 * Reserved 001F 31 Bitstring 1 RDCFET5 RDC Data Byte 31 ...1 ..11 RDCENCR X'13' RDCENCR Supports Encryption ...1 .1.1 RDCENCR2 X'15' RDCENCR2 Supports Encryption 2 0020 32 Bitstring 3 RDCLIBSQ Library Sequence Number 0023 35 Bitstring 1 RDCLIBID Library Subsystem ID 0024 36 Bitstring 4 * Reserved *** Bytes defined for TAPE RDC Field 2 002A 42 Bitstring 22 RDCTAPE2 TAPE SPECIFIC RESERVED New Tape Product (NTP) redefinitions: 0006 6 Bitstring 1 RDCFRMAT RDC Format 6 .... .... RDCOLDT X'00' RDCOLDT Defines Tape RDC info before NTP .... ...1 RDCNTP X'01' RDCNTP Defines NTP RDC information 0007 7 Bitstring 3 RDCSSF1 (0) Subsystem Facilities 1 7-9 0007 7 Bitstring 1 * No fields defined 7 0008 8 Bitstring 1 * Same as RDCFET3, above 8 0009 9 Bitstring 1 * Same as RDCFETFE, above 9 000A 10 Bitstring 2 * Reserved 10-11 000C 12 Bitstring 4 RDCSSF2 (0) Subsystem Facilities 2 12-15 000C 12 Bitstring 1 RDCSSF20 SSF2, byte 0 12 000D 13 Bitstring 1 RDCSSF21 SSF2, byte 1 13 1... .... RDCRDFWD X'80' RDCRDFWD Device supports Read Forward CCW .... .1.. RDCMODST X'04' RDCMODST DEVICE SUPPORTS MODE SET/SENSE CCW 000E 14 Bitstring 1 RDCSSF22 SSF2, byte 2 14 ..1. .... RDCTSSCS X'20' RDCTSSCS Tape Set System Characteristics is supported .... .1.. RDCMEDSC X'04' RDCMEDSC Medium Sense and Chars supported 000F 15 Bitstring 1 RDCSSF23 SSF2, byte 3 15 0010 16 Bitstring 1 RDCDVTYM Device Type-Model 16 0011 17 Bitstring 2 RDCDVMPL Device Manufacturer and 17-18 Plant of Manufacture 0013 19 Bitstring 3 RDCDVSEQ Device Sequence Number 19-21 0016 22 Bitstring 1 RDCCUTYM Control Unit Type-Model 22 0017 23 Bitstring 2 RDCCUMPL Control Unit Manufacturer 23-24 and Plant of Manufacture 0019 25 Bitstring 3 RDCCUSEQ Control Unit Sequence Number25-27 001C 28 Bitstring 1 * Reserved for IBM use 28 001D 29 Bitstring 1 RDCLBTYM Library Type-Model 29 001E 30 Bitstring 1 * Reserved for IBM use 30 001F 31 Bitstring 1 RDCEPI ERDS Physical Identifer 31 0020 32 Bitstring 3 * Same as RDCLIBSQ, above 32-34 0023 35 Bitstring 1 * Same as RDCLIBID, above 35 0024 36 Bitstring 2 RDCVLLID Volume Loader Identifier 36-37 0026 38 Bitstring 1 RDCDEVID Device Identifier 38 0027 39 Bitstring 1 * Reserved 39 0028 40 Bitstring 1 * Same as RDCMDRID, above 40 0029 41 Bitstring 1 * Same as RDCOBRID, above 41 002A 42 Bitstring 1 RDCDVCOD OS Device Code=Class=Type 42
 
 
  RDCBK Storage Layout Top of page
 
          
*** RDCBK - Real Device Characteristics Block
*
*     +-------------+------+-------------+------+-------------+
*   0 |  RDCCUID    |:CUMN |  RDCDVID    |:DVMN |/////////////|
*     +------+------+------+------+------+------+-------------+
*   8 |:EXFC |:FEAT3|:OSCLS|:OSTYP|                           |
*     +------+------+------+------+                           |
*  10 |                                                       |
*     =                       RDCDEVF1                        =
*     |                                                       |
*     +------+------+-----------------------------------------+
*  28 |:MDRID|:OBRID|                                         |
*     +------+------+                                         |
*     |                       RDCDEVF2                        |
*     |                                                       |
*     +---------------------------+---------------------------+
*  40 |         RDCNEXT           |         RDCDCHAR          |
*     +------+------+------+------+------+------+------+------+
*  48 |:STATS|:CUFT |:DVCLS|:DVTYP|:DVFTR|:RDMN |RDCRC |:DVSCL|
*     +------+------+------+------+------+------+------+------+
*  50 |         RDCERPA           |         RDCERSA           |
*     +---------------------------+---------------------------+
*  58 |         RDCCRSA           |         RDCCPTA           |
*     +---------------------------+---------------------------+
*  60 |         RDCCMTBA          |         RDCLERPA          |
*     +---------------------------+---------------------------+
*  68 |         RDCLERSA          |         RDCSQUY           |
*     +---------------------------+---------------------------+
*  70 |         RDCHERSA          |///////////////////////////|
*     +---------------------------+---------------------------+
*  78 |                                                       |
*     =                       RDCDSPEC                        =
*     |                                                       |
*     +-------------------------------------------------------+
*  C8
*
*** RDCBK - Real Device Characteristics Block
          
*** Overlay for RDCDSPEC in RDCBK
*
*     +-------------+-------------+-------------+-------------+
*  78 |/////////////|  RDCPCYL    |  RDCDEVLM   |  RDCMAXPR   |
*     +-------------+------+------+------+------+-------------+
*  80 |  RDCMASK    |:PPTRK|:TPGEX|:PAGFG|:FLAG |/////////////|
*     +-------------+------+------+------+------+-------------+
*  88 |         RDCCPVOL          |         RDCMLOAD          |
*     +---------------------------+---------------------------+
*  90 |                       RDCNPSEC                        |
*     |                                         +-------------+
*  98 |                                         |             |
*     +-----------------------------------------+             |
*     |                       RDCSECTR                        |
*     |                           +---------------------------+
*  A8 |                           |         RDCDPSBK          |
*     +---------------------------+---------------------------+
*  B0 |         RDCQRTIM          |///////////////////////////|
*     +---------------------------+///////////////////////////|
*     |///////////////////////////////////////////////////////|
*     |///////////////////////////////////////////////////////|
*     +-------------------------------------------------------+
*  C8
*
*** Overlay for RDCDSPEC in RDCBK
          
*** Overlay for RDCFEAT in RDCBK
*
*                                               +------+------+
*   0 ...                                     6 |:VFAC |:VFAC2|
*     +------+------+---------------------------+------+------+
*   8 |//////|:SFEAT| A
*     +------+------+
*
*** Overlay for RDCFEAT in RDCBK
          
*** Overlay for RDCDEVF1 in RDCBK
*
*                                 +-------------+-------------+
*   8 ...                       C |  RDCMCYL    |  RDCTPCYL   |
*     +------+--------------------+-------------+------+------+
*  10 |:SECT |     RDCTOTRK       |   RDCHA     |:MODE |(017)-|
*     +------+--------------------+-------------+------+------+
*  18 |         -RDCMDFR          |  RDCALTCL   |  RDCALTRX   |
*     +-------------+-------------+-------------+-------------+
*  20 |  RDCDIAG    |  RDCDIAGN   |  RDCDVCYL   |  RDCDVTRK   |
*     +-------------+-------------+-------------+-------------+
*  28
*
*** Overlay for RDCDEVF1 in RDCBK
          
*** Overlay for RDCDEVF2 in RDCBK
*
*                   +------+------+-------------+------+------+
*  28 ...        2A |:CUTYP|:MRTPL|  RDCMXR0    |RDC46 |:TRSSZ|
*     +------+------+------+------+------+------+------+------+
*  30 |:ATCCF|  RDC4950    |:LTHRS|RDC52 |:UTHRS|:DCUF |RDC55 |
*     +------+------+------+------+------+------+------+------+
*  38 |:RCUC |:OBRCO|  RDC5859    |        RDCMCYL32          |
*     +------+------+-------------+---------------------------+
*  40
*
*** Overlay for RDCDEVF2 in RDCBK
          
*** Overlay for RDCFEAT in RDCBK
*
*                                               +-------------+
*   0 ...                                     6 |/////////////|
*     +------+------+---------------------------+-------------+
*   8 |:OPER |:FBAFT| A
*     +------+------+
*
*** Overlay for RDCFEAT in RDCBK
          
*** Overlay for RDCDEVF1 in RDCBK
*
*                                 +-------------+-------------+
*   8 ...                       C |  RDCRECSZ   | RDCBLKCG-   |
*     +-------------+-------------+-------------+-------------+
*  10 |   -(00E)    |         RDCBLKAP          | RDCBLKMA-   |
*     +-------------+---------------------------+-------------+
*  18 |   -(016)    |         RDCBLKFA          |/////////////|
*     +-------------+---------------------------+-------------+
*  20 |  RDCBLKCE   |/////////////////////////////////////////|
*     +-------------+-----------------------------------------+
*  28
*
*** Overlay for RDCDEVF1 in RDCBK
          
*** Overlay for RDCFEAT in RDCBK
*
*                                               +-------------+
*   0 ...                                     6 |/////////////|
*     +------+------+---------------------------+-------------+
*   8 |:FET3 |:FETFE| A
*     +------+------+
*
*** Overlay for RDCFEAT in RDCBK
          
*** Overlay for RDCDEVF1 in RDCBK
*
*                                 +---------------------------+
*     ...                       C |///////////////////////////|
*     +------+------+-------------+---------------------------+
*  10 |//////|:FET4 |/////////////////////////////////////////|
*     +------+------+//////////////////////////////////+------+
*  18 |////////////////////////////////////////////////|:FET5 |
*     +--------------------+------+--------------------+------+
*  20 |     RDCLIBSQ       |:LIBID|///////////////////////////|
*     +--------------------+------+---------------------------+
*  28
*
*** Overlay for RDCDEVF1 in RDCBK
          
*** Overlay for RDCDEVF2 in RDCBK
*
*                   +-----------------------------------------+
*  28 ...        2A |                                         |
*     +-------------+                                         |
*     |                       RDCTAPE2                        |
*     |                                                       |
*     +-------------------------------------------------------+
*  40
*
*** Overlay for RDCDEVF2 in RDCBK
          
*** Overlay for RDCFEAT in RDCBK
*
*                                               +------+------+
*   0 ...                                     6 |:FRMAT|//////|
*     +------+------+-------------+------+------+------+------+
*   8 |//////|//////|/////////////|:SSF20|:SSF21|:SSF22|:SSF23|
*     +------+------+------+------+------+------+------+------+
*  10 |:DVTYM|  RDCDVMPL   |     RDCDVSEQ       |:CUTYM|(017)-|
*     +------+-------------+------+------+------+------+------+
*  18 |-(017)|     RDCCUSEQ       |//////|:LBTYM|//////|RDCEPI|
*     +------+-------------+------+------+------+------+------+
*  20 |////////////////////|//////|  RDCVLLID   |:DEVID|//////|
*     +------+------+------+------+-------------+------+------+
*  28 |//////|//////|:DVCOD| 2B
*     +------+------+------+
*
*** Overlay for RDCFEAT in RDCBK
 
 
  RDCBK Cross Reference Top of page
 
 
Symbol         Dspl Value
-------------- ---- -----
RDCALTCL       001C
RDCALTRX       001E
RDCASYNC       0049 10
RDCATCCF       0030
RDCBLKAP       0012
RDCBLKCE       0020
RDCBLKCG       000E
RDCBLKFA       001A
RDCBLKMA       0016
RDCBURST       0008 20
RDCB17B3       0011 10
RDCCASS        0049 80
RDCCFLF        0009 40
RDCCFW         0009 80
RDCCMPCT       0009 40
RDCCMTBA       0060
RDCCPNOP       0008 04
RDCCPOWN       0084 01
RDCCPTA        005C
RDCCPVOL       0088
RDCCRSA        0058
RDCCUFT        0049
RDCCUIBK       0049 04
RDCCUID        0000
RDCCUMN        0002
RDCCUMPL       0017
RDCCUSEQ       0019
RDCCUTYM       0016
RDCCUTYP       002A
RDCDALEN       002A 00000040
RDCDATA        0000
RDCDATCH       0008 10
RDCDCHAR       0044
RDCDCUF        0036
RDCDEVF1       000C
RDCDEVF2       002A
RDCDEVID       0026
RDCDEVLM       007C
RDCDFW         0009 04
RDCDIAG        0020
RDCDIAGN       0022
RDCDPSBK       00AC
RDCDSPEC       0078
RDCDUP         0009 08
RDCDVCLS       004A
RDCDVCOD       002A
RDCDVCYL       0024
RDCDVFTR       004C
RDCDVID        0003
RDCDVMN        0005
RDCDVMPL       0011
RDCDVSCL       004F
RDCDVSEQ       0013
RDCDVTRK       0026
RDCDVTYM       0010
RDCDVTYP       004B
RDCENCR        001F 13
RDCENCR2       001F 15
RDCEPI         001F
RDCERPA        0050
RDCERSA        0054
RDCEXFC        0008
RDCFBA         0048 10
RDCFBAFT       0009
RDCFBARE       0008
RDCFEAT        0006
RDCFEAT3       0009
RDCFETFE       0009
RDCFET3        0008
RDCFET4        0011
RDCFET5        001F
RDCFIXHM       0009 04
RDCFLAG        0085
RDCFLASH       0049 02
RDCFLGS        0048
RDCFRMAT       0006
RDCHA          0014
RDCHERSA       0070
RDCLAFIN       0009 08
RDCLBTYM       001D
RDCLEN         0078 000000C8
RDCLERPA       0064
RDCLERSA       0068
RDCLIBID       0023
RDCLIBON       0009 10
RDCLIBSQ       0020
RDCLRE         0085 02
RDCLTHRS       0033
RDCMASK        0080
RDCMAXPR       007E
RDCMCYL        000C
RDCMCYL32      003C
RDCMDC         0085 01
RDCMDFR        0017
RDCMDRID       0028
RDCMEDSC       000E 04
RDCMINID       0084 02
RDCMIRR        0036 04
RDCMLOAD       008C
RDCMODE        0016
RDCMODST       000D 04
RDCMOVAM       0009 08
RDCMPLF        0009 40
RDCMRTPL       002B
RDCMXR0        002C
RDCNCRNT       0048 40
RDCNEXT        0040
RDCNOSR        0049 20
RDCNPSEC       0090
RDCNTP         0006 01
RDCOBRCO       0039
RDCOBRID       0029
RDCOFFSP       0048 20
RDCOLDT        0006 00
RDCOPER        0008
RDCOSCLS       000A
RDCOSCOD       000A
RDCOSTYP       000B
RDCOVRRN       0008 40
RDCPAGFG       0084
RDCPAGOY       0084 04
RDCPCYL        007A
RDCPPRC        0008 20
RDCPPTRK       0082
RDCPRFX        0006 02
RDCQRTIM       00B0
RDCRC          004E
RDCRCACH       0009 20
RDCRCS         0009 20
RDCRCUC        0038
RDCRDFWD       000D 80
RDCRDMN        004D
RDCRECSZ       000C
RDCREMOV       0009 40
RDCRRLSE       0009 20
RDCRSTNT       0049 08
RDCSECT        0010
RDCSECTR       009E
RDCSFEAT       0009
RDCSICS        0049 40
RDCSIZE        0078 00000019
RDCSNGEX       0083 00000001
RDCSQUY        006C
RDCSSCRC       0006 04
RDCSSCSP       0006 08
RDCSSF1        0007
RDCSSF2        000C
RDCSSF20       000C
RDCSSF21       000D
RDCSSF22       000E
RDCSSF23       000F
RDCSSUPT       0048 01
RDCSTATS       0048
RDCSUPT        0048 80
RDCTAPE1       000C
RDCTAPE2       002A
RDCTCUIR       0008 08
RDCTOTRK       0011
RDCTPCYL       000E
RDCTPGEX       0083
RDCTRAM        0008 10
RDCTRSSZ       002F
RDCTSSCS       000E 20
RDCUTHRS       0035
RDCVFAC        0006
RDCVFAC2       0007
RDCVLLID       0024
RDCVPAVU       0007 40
RDCXRC         0008 40
RDC46          002E
RDC4950        0031
RDC52          0034
RDC55          0037
RDC5859        003A
 
This information is based on z/VM 7.3.0 Last updated on 22 Jun 2022 at 15:54:18 EDT.
Copyright IBM Corporation, 1990, 2022