Control blocks and data areas scanned, mapped, and formatted

Table 1 lists the control blocks and data areas in system dumps that the CBFORMAT subcommand can scan, create a storage map entry for, or format. The notes referenced in the right column are at the end of the chart.

For some control blocks or data areas, IPCS creates a storage map entry but does not scan the block or area.

Table 1. Control blocks and data areas that CBFORMAT can scan
Control block or data area Scanned Storage map entry Formatted Note
ACE no no yes  
AFT yes yes no  
AFTE yes yes no 1
AIA no no yes  
ALE no no yes  
AMDCPMAP no no yes  
AR no no yes  
ASCB yes yes yes 12
ASEI no no yes  
ASMHD no no yes  
ASMVT no yes yes  
ASPCT no no yes  
ASSB yes yes yes  
AST yes yes no 12
ASTE yes yes no 2 and12
ASVT yes yes no  
ASXB yes yes yes 12
CACHE no no yes  
CDE yes yes yes  
CDEMAJOR yes yes yes 3
CDEMINOR yes yes yes 3
CLTE no no yes  
CQE yes yes no  
CSD yes yes yes  
CSRC4POL no no yes  
CSRCPOOL no no yes  
CVT yes yes yes  
CVTVSTGX yes yes yes 16
CVTXTNT2 yes yes yes 16
DCB no yes no  
DEIB no no yes  
DEIE no no yes  
DIB yes yes yes  
DIBX yes yes yes  
DOA yes yes yes  
DOM no no yes  
DSAB no no yes  
DSNT no no yes 15
EED no no yes  
FRRS no no yes  
GDA yes yes no  
GEPL no no yes  
HED no no yes  
HTBL no no yes  
IATYDAT no no yes 10
IATYDMC no no yes 10
IATYDSS no no yes 10
IATYFCT no no yes 10
IATYIOP no no yes 10
IATYMEME no no yes 10
IATYMEMH no no yes 10
IATYMPC no no yes 10
IATYOSD no no yes 10
IATYOSED no no yes 10
IATYOSEF no no yes 10
IATYOSEV no no yes 10
IATYRQCI no no yes 10
IATYRQCM no no yes 10
IATYRQFX no no yes 10
IATYRQGM no no yes 10
IATYRQMD no no yes 10
IATYRQOS no no yes 10
IATYSEL no no yes 10
IATYSPB no no yes 10
IATYSVT no yes yes 10
IATYTVT no no yes 10
IEAVESLA no yes no  
IEFJESCT no yes yes  
IEFJESCTPX yes yes no  
IEFJSCVT no yes yes  
IEFJSSVT no yes yes  
IEFOAWTR no no yes  
IEFZAGT no no yes  
IEFZB41C no no yes  
IEFZB445 yes yes yes  
IEFZIGDE no no yes  
IEFZTSRA no no yes  
IHSA yes yes yes 12
IORB no no yes  
IOSB no no yes  
IRB yes yes no 6
ISGGVT yes yes no 9
ISGGVTX yes yes no 9
ISGQCB yes yes no 9
ISGQEL yes yes no 9
ISGQHT yes yes no 9
ISGRPT no yes no  
ISGRSV yes yes no 9
ISGSAHT no yes no  
IXCYERE no no yes  
IXCYEVE no no yes  
IXCYWRE no no yes  
IXGARTE no no yes  
IXGDIRCT no no yes  
IXGINV no no yes  
IXGIPSTK no no yes 14
IXGLBCB no no yes  
IXGLCB no no yes  
IXGLCBVT no no yes  
IXGLCCB no no yes  
IXGLSAB no no yes  
IXGPCNTL no no yes  
IXGRQE no no yes  
IXGSTRCB no no yes  
JCT no no yes 15
JCTX no no yes 15
JESCT no yes no  
JFCB no no yes 15
JFCBE no no yes 15
JFCBX no no yes 15
JQE no yes no  
JSCB no no yes  
LCCA yes yes yes 12
LCCAVT yes yes no  
LDA yes yes yes  
LGE no no yes  
LGVT no no yes  
LGVTE no no yes  
LLE no no yes  
LPDE yes yes yes 3
LPDEFINAL yes yes yes 3
LPDEMAJOR yes yes yes 3
LPDEMINOR yes yes yes 3
LPDENULL yes yes yes 3
LS no no yes  
LSE no no yes  
LSEH no no yes  
LSET no no yes  
LSSD yes yes yes  
LSSG yes yes yes  
MEPL no no yes  
MGCRE no no yes  
NVT yes yes no  
ORE yes yes no  
OUCB yes yes yes  
OUSB no yes no  
OUXB no yes no  
PART no no yes  
PARTE no no yes  
PAT no no yes  
PCB no yes no  
PCCA yes yes yes 12
PCCAVT yes yes no  
PFT no yes no 4
PFTE no yes no  
PGT yes yes no 5, 12
PGTE yes yes no  
PPD yes yes no  
PRB yes yes no 6
PSA yes yes yes 12
PSW no yes yes 12
PVT yes yes no  
PXT no yes no  
RB yes yes yes  
RCE yes yes no  
RDCM no no yes  
REGACC no no yes 12
REGCTL no no yes 12
REGFLT no no yes 12
REGGEN no no yes 12
REGS no no yes  
REGSAVIM no no yes  
RMCT no yes no  
RQE no yes no  
RSMHD no yes no  
RTCT yes yes yes  
RTM2WA no yes yes  
RT1W yes yes no  
SART no no yes  
SARTE no no yes  
SAT no no yes  
SBC no no yes  
SCB yes yes yes  
SCCB yes yes yes  
SCCW no no yes  
SCFS no no yes  
SCT no no yes 15
SCTX no no yes 15
SCVT yes yes no  
SDCT no no yes  
SDUMP no no yes  
SDWA no no yes  
SDWAHDR no no yes  
SEPL no no yes  
SGT yes yes no 7 and 12
SGTE yes yes no  
SIOT no no yes 15
SIRB yes yes no 6
SPD yes yes no  
SPQE no yes no  
SRB no yes yes  
SSRB no no yes  
STCB yes yes yes  
STKE no no yes  
SUPVT no no yes  
SVRB yes yes no 6
SVT no no yes  
SVTX yes no yes  
SXT no yes no  
TCB yes yes yes 12
TDCM no no yes  
TIAB no no yes  
TIOT no yes yes 11
TIOTE no no yes 11
TIRB yes yes no 6
TODCLOCK no no yes 17
TODCNULL no no yes 18
TODC4 no no yes 19
TQE no yes no  
TSB no yes no  
UCB yes yes no 12
UCBCTC yes yes no 8
UCBDA yes yes no 8
UCBEXT no yes no  
UCBGFX yes yes no 8
UCBTAPE yes yes no 8
UCBTP yes yes no 8
UCBUR yes yes no 8
UCB3270 yes yes no 8
UCM yes yes yes  
UCME no no yes  
VCOM no no yes  
VF no no yes  
VSWK no no yes  
WCB yes yes yes  
WEB yes no yes  
WEE yes no yes  
WQE yes yes yes  
WSAVTC no yes no  
WSAVTG no yes no  
WSMA     yes  
XCFSTACK no no yes 13
XESSTACK no no yes 13
XSB no no yes  
XTLST yes yes yes  
Note:
  1. AFTE is validated as if it was specified as AFT. AFT is stored in the symbol table and storage map.
  2. ASTE is validated as if it were specified as AST. AST is stored in the symbol table and storage map.
  3. CDEMAJOR, CDEMINOR, LPDE, LPDEMAJOR, and LPDEMINOR are validated as if they were specified as CDE. The correct structure type is stored in the symbol table and storage map.
  4. PFT is validated as if it were specified as PFTE. PFTE is stored in the symbol table and storage map.
  5. PGT is validated as if it were specified as PGTE. PGTE is stored in the symbol table and storage map.
  6. These control blocks are validated as if they were specified as RB. The correct structure type is stored in the symbol table and storage map. IRB, PRB, SIRB, and TIRB are validated as if they were specified as LPDE. The correct structure type is stored in the symbol table and storage map.
  7. SGT is validated as if it were specified as SGTE. SGTE is stored in the symbol table and storage map.
  8. UCBCTC, UCBDA, UCBGFX, UCBTAPE, UCBTP, UCBUR, and UCB3270 are validated as if they were specified as UCB. The correct structure type is stored in the symbol table and storage map.
  9. ISGGVT, ISGGVTX, ISGQCB, ISGQEL, ISGQHT, ISGRPT, ISGRSV, and ISGSAHT are referenced, without the prefix ISG, in z/OS MVS™ Data Areas in z/OS® Internet Library at http://www.ibm.com/systems/z/os/zos/bkserv/. For example, ISGGVT is listed under GVT.
  10. These JES3 control blocks can be formatted by issuing the CBFORMAT subcommand with the address of the requested control block. For example, using the IPCS dialog BROWSE option or a CLIST to determine the address of the control block, enter CBFORMAT 9FD308 STRUCTURE(IATYSEL). Only the IATYSVT allows you to use the symbol name in the subcommand, CBFORMAT IATYSVT STRUCTURE(IATYSVT).
  11. TIOT formats the entire task input output table (TIOT). TIOTE formats a single TIOT entry. If your system has DFP Version 3.2 with APARs OY29785 and OY29786 installed, and DB2® Version 2.2 with APAR PL59415 installed, you must use TIOTE to format TIOT entries. TIOT will not find all TIOT entries.

    Otherwise, you can use either TIOT or TIOTE.

  12. These symbols have a special naming convention in IPCS. See IPCS special symbols for system control blocks.
  13. XCFSTACK and XESSTACK are dynamic area stack structures that contain information that is internal to XES and XCF.
  14. IXGIPSTK is a dynamic area stack structure that contains information internal to system logger. For example, using the IPCS dialog BROWSE option or a CLIST enter CBFORMAT nnnnnnnn FORMAT(IXGIPSTK), where nnnnnnnn is the address of a system logger dynamic stack.
  15. These scheduler work area (SWA) control blocks can be formatted using the CBFORMAT command or subcommand. Specify the address of the X'10' byte SWA prefix that precedes the control block rather than the address of the actual SWA block itself.
  16. See CVT in z/OS MVS Data Areas in z/OS Internet Library at http://www.ibm.com/systems/z/os/zos/bkserv/.
  17. See Principles of Operation, topic TOD-clock. This is IPCS support for the 8-byte value store by the STCK instruction.
  18. Same as TODCLOCK except that zero values are treated as a special case that implies the absence of a valid TOD-clock value in a data area field.
  19. TODCLOCK LENGTH(4), bits 0-31 of a TOD-clock value are saved in some data areas.