FASBK Back to Index page
 
Prolog 
Control Block Contents 
   FASBK 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.


  FASBK Prolog Top of page
 
 NAME       : HCPFASBK
 DESCRIPTION: VMDUMP File Address Space Information
 DSECT      : FASBK
 FUNCTION   : Contains information about the VMDUMP file
              that is unique for each address space
              in the dump
 LOCATED BY : VDUFASBK
              FASNEXT
 CREATED BY : HCPVMBLK
 DELETED BY : HCPVCCLN
 REFERENCES : None
 RELOCATION CONSIDERATIONS : None
 COMMENTS   : obtained from free storage
 
 
  FASBK Control Block Content Top of page
 

 FASBK DSECT Top of page
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure FASBK VMDUMP File Address Space Information 0000 0 Character 8 FASIASIT Address space identification token (iASIT) 0008 8 Character 8 FASEASIT eASIT 0010 16 Character 100 FASDUMID Dump identifier for this address space 0074 116 Character 8 FASFORMT Format of this address space 007C 124 Bitstring 1 FASFLAGS Parsing flags 1... .... FASFORM X'80' FASFORM 'Format' was specified .1.. .... FASDCSS X'40' FASDCSS 'DCSS' was specified ..1. .... FASDMPID X'20' FASDMPID Dumpid was specified ...1 .... FASDCSSF X'10' FASDCSSF DCSS's found to dump .... 1... FAS1451 X'08' FAS1451 This address space was already found to be inaccessible. Msg 1451I was already issued. 007D 125 Bitstring 1 FASFLAG2 2nd General flag byte 1... .... FASNOMRG X'80' FASNOMRG Don't merge the local and global bitmaps 007E 126 Character 2 * Reserved for IBM use 0080 128 Address 4 FASNEXT Address of next FASBK 0084 132 Address 4 FASDCSSP Address of DSLs for DCSS list 0088 136 Address 4 FASDEFP Pointer to DSLBKs that map defined (configured) storage. 008C 140 Address 4 FASSTOR Pointer to DSLBKs that map all of storage 0090 144 Dbl-Word 8 FASDCSHG (0) Byte address past highest defined (DCSS) storage address that is not higher than 512G 0090 144 Signed 4 FASDCSHH High word 0094 148 Signed 4 FASDCSHI Low word 0098 152 Dbl-Word 8 FASB2GDG (0) Byte address past highest defined (configured) storage address that is < or = the Maximum Dumpable Address based on guest's architecture mode. 0098 152 Signed 4 FASB2GDH High word 009C 156 Signed 4 FASB2GDL Low word 00A0 160 Dbl-Word 8 FASB2GHG (0) Byte address past highest address (configured or DCSS) that is < or = the Maximum Dumpable Address based on guest's architecture mode. 00A0 160 Signed 4 FASB2GHH High word 00A4 164 Signed 4 FASB2GHL Low word 00A8 168 Dbl-Word 8 FASHI True Highest byte in address space. It may be above the Maximum Dumpable Address based on guest's architecture mode. 00B0 176 Address 4 FASGPAGM Pointer to global bit map 00B4 180 Address 4 FASLPAGM Pointer to local bit map 00B8 184 Signed 4 FASASIBK Record number of ASIBK for this address space in SDF 00BC 188 Address 4 FASASIWK Pointer to working copy of ASIBK 00C0 192 Signed 2 FASCOUNT Number of sets of dumped storage for this address space in dump 00C2 194 Signed 2 * Reserved for IBM use 00C4 196 Signed 4 * (4) Reserved for IBM use 00D4 212 Bitstring 1 FAS$END (0) Defines end of control blk
 
 
  FASBK Storage Layout Top of page
 
          
*** FASBK - VMDUMP File Address Space Information
*
*     +-------------------------------------------------------+
*   0 |                       FASIASIT                        |
*     +-------------------------------------------------------+
*   8 |                       FASEASIT                        |
*     +-------------------------------------------------------+
*  10 |                                                       |
*     =                       FASDUMID                        =
*     |                           +---------------------------+
*     |                           |        FASFORMT-          |
*     +---------------------------+------+------+-------------+
*  78 |          -(074)           |:FLAGS|:FLAG2|/////////////|
*     +---------------------------+------+------+-------------+
*  80 |         FASNEXT           |         FASDCSSP          |
*     +---------------------------+---------------------------+
*  88 |         FASDEFP           |         FASSTOR           |
*     +---------------------------+---------------------------+
*  90 |         FASDCSHH          |         FASDCSHI          |
*     +---------------------------+---------------------------+
*  98 |         FASB2GDH          |         FASB2GDL          |
*     +---------------------------+---------------------------+
*  A0 |         FASB2GHH          |         FASB2GHL          |
*     +---------------------------+---------------------------+
*  A8 |                        FASHI                          |
*     +---------------------------+---------------------------+
*  B0 |         FASGPAGM          |         FASLPAGM          |
*     +---------------------------+---------------------------+
*  B8 |         FASASIBK          |         FASASIWK          |
*     +-------------+-------------+---------------------------+
*  C0 |  FASCOUNT   |/////////////|///////////////////////////|
*     +-------------+-------------+///////////////////////////|
*     |///////////////////////////////////////////////////////|
*     |///////////////////////////+---------------------------+
*     |///////////////////////////|
*     +---------------------------+
*
*** FASBK - VMDUMP File Address Space Information
 
 
  FASBK Cross Reference Top of page
 
 
Symbol         Dspl Value
-------------- ---- -----
FAS$END        00D4
FASASIBK       00B8
FASASIWK       00BC
FASB2GDG       0098
FASB2GDH       0098
FASB2GDL       009C
FASB2GHG       00A0
FASB2GHH       00A0
FASB2GHL       00A4
FASCOUNT       00C0
FASDCSHG       0090
FASDCSHH       0090
FASDCSHI       0094
FASDCSS        007C 40
FASDCSSF       007C 10
FASDCSSP       0084
FASDEFP        0088
FASDMPID       007C 20
FASDUMID       0010
FASEASIT       0008
FASFLAGS       007C
FASFLAG2       007D
FASFORM        007C 80
FASFORMT       0074
FASGPAGM       00B0
FASHI          00A8
FASIASIT       0000
FASLPAGM       00B4
FASNEXT        0080
FASNOMRG       007D 80
FASSTOR        008C
FAS1451        007C 08
 
This information is based on z/VM 7.3.0 Last updated on 22 Jun 2022 at 15:50:23 EDT.
Copyright IBM Corporation, 1990, 2022