Programming Interface Information:
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DFMBK
Control Block Contents
DFMBK DSECT
Cross Reference (Contains links to field and bit definitions)
DFMBK Prolog
NAME : HCPDFMBK DESCRIPTION: Dump file map record DSECT : DFMBK FUNCTION : Contains the relative record number of each part of a dump file, created by Hard ABEND, S/A Dump, VMDUMP or Non-Destructive dump. LOCATED BY : The DFMBK is always the second record in a dump file. CREATED BY : HCPDMP, HCPVDU or HCPSAD DELETED BY : Not applicable COMMENTS : The DFMBK maps a 4K record that is written to a dump file.
DFMBK Control Block Content
DFMBK DSECT
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure DFMBK Dump file map record 0000 0 Character 8 DFMBKID Identification string 0008 8 Signed 4 DFMDFIR Record number of 1st DFIR Page 000C 12 Signed 4 * RESERVED FOR IBM USE 0010 16 Signed 4 DFMDALBK Record number of the first access list record 0014 20 Signed 4 DFMDALNO Number of access list records 0018 24 Signed 4 DFMCOUNT Number of address spaces in the SDF, and once processed into a CMS file, this is the number of related dump files that can be created, if all goes well. 0000001C DFMSIZE *-DFMBK Length of fixed portion of the DFMBK 001C 28 Signed 4 DFMASIBK Record number of ASIBK for each dumped address space 00000004 DFMASILN *-DFMASIBK Length of repeatable section DFMMAX defines the maximum number of ASIBKs that one DFMBK can address. 000003F9 DFMMAX (4096-DFMSIZE)/4
DFMBK Storage Layout
*** DFMBK - Dump file map record * * +-------------------------------------------------------+ * 0 | DFMBKID | * +---------------------------+---------------------------+ * 8 | DFMDFIR |///////////////////////////| * +---------------------------+---------------------------+ * 10 | DFMDALBK | DFMDALNO | * +---------------------------+---------------------------+ * 18 | DFMCOUNT | DFMASIBK | * +---------------------------+---------------------------+ * 20 * *** DFMBK - Dump file map record
DFMBK Cross Reference
Symbol Dspl Value -------------- ---- ----- DFMASIBK 001C DFMASILN 001C 00000004 DFMBKID 0000 DFMCOUNT 0018 DFMDALBK 0010 DFMDALNO 0014 DFMDFIR 0008 DFMMAX 001C 000003F9 DFMSIZE 0018 0000001C
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