Header/Self-defining section

This section contains the common SMF record headers fields and the triplet fields (offset/length/number), if applicable, that locate the other sections on the record.

Offsets Name Length Format Description
0 0 SMF42RCL 2 binary Record length. This field and the next field (total of four bytes) form the record descriptor word (RDW). See Standard SMF record header for a detailed description.
2 2 SMF42SGD 2 binary Segment descriptor (see record length field). This is zero, if the record is not spanned.
4 4 SMF42FLG 1 binary System indicator flags
Bit
Meaning when set
0
Subsystem identification follows system identification.
1
Subtypes are used
2
Reserved
3-6
Version indicators*
7
Reserved.

*See Standard SMF record header for a detailed description.
5 5 SMF42RTY 1 binary Record type 42 (X'2A').
6 6 SMF42TME 4 binary Time since midnight, in hundredths of a second, when the record was moved into the SMF buffer.
10 A SMF42DTE 4 packed Date when the record was moved into the SMF buffer, in the form 0cyydddF. See Standard SMF record header for a detailed description.
14 E SMF42SID 4 EBCDIC System identification (from the SID parameter).
18 12 SMF42SSI 4 EBCDIC Subsystem identification.
22 16 SMF42STY 2 binary Record subtype.
Value
Meaning
1
BMF cache summary
2
Cache control units having SMS-managed device(s) attached.
3
SMS configuration changed
4
System Data Mover session statistics
5
Storage class VTOC and VVDS I/O statistics
6
Data set level I/O statistics
9
B37/D37/E37 abend information
10
Volume Selection Failure
11
Extended remote copy session statistics
14
ADSM session resource usage
15
VSAM RLS CF storage class response time
16
VSAM RLS CF data set response time
17
VSAM RLS CF lock structure usage
18
VSAM RLS CF cache partition usage
19
VSAM RLS Buffer Manager LRU Activity
20
STOW Initialize
21
Member Delete
22
DFSMSrmm Audit Records
23
DFSMSrmm Security Records
24
Member Add/Replace
25
Member Rename
24 18 SMF42NT 2 binary Number of triplets in record. A triplet is a set of offset/length/number values that defines a section of the record. Start of change(Optional.)End of change
26 1A   2   Reserved.
Product section triplet:
28 1C SMF42OPS 4 binary Offset to product section from start of record, including record descriptor word (RDW).
32 20 SMF42LPS 2 binary Length of product section.
34 22 SMF42NPS 2 binary Number of product sections.
36 24 SMF42END 0 character Force header end on word boundary.
The following six fields are only included with subtype 1:
36 24 SMF42BMO 4 binary Offset to BMF totals section from start of record, including record descriptor word (RDW).
40 28 SMF42BML 2 binary Length of BMF totals section.
42 2A SMF42BMN 2 binary Number of BMF totals sections.
44 2C SMF42SCO 4 binary Offset to storage class summary section from start of record, including record descriptor word (RDW).
48 30 SMF42SCL 2 binary Length of storage class summary section.
50 32 SMF42SCN 2 binary Number of storage class summary sections.
The following six fields are only included with subtype 2:
36 24 SMF42CUO 4 binary Offset to control unit cache section from start of record, including record descriptor word (RDW).
40 28 SMF42CUL 2 binary Length of control unit cache section.
42 2A SMF42CUN 2 binary Number of control unit cache sections.
44 2C SMF42VLO 4 binary Offset to volume section from start of record, including record descriptor word (RDW).
48 30 SMF42VLL 2 binary Total length of all volume sections. (Number of volume sections multiplied by the length of one volume section.)
50 32 SMF42VLN 2 binary Number of volume sections.
The following three fields are only included with subtype 3:
36 24 SMF42EAO 4 binary Offset to event audit section from start of record, including record descriptor word (RDW).
40 28 SMF42EAL 2 binary Length of event audit section.
42 2A SMF42EAN 2 binary Number of event audit sections.
The following six fields are only included with subtype 4:
36 24 SMF42CCO 4 binary Offset to CC statistics.
40 28 SMF42CCL 2 binary Length of CC statistics.
42 2A SMF42CCN 2 binary Number of CC sessions.
44 2C SMF42EXO 4 binary Offset to EXT statistics.
48 30 SMF42EXL 2 binary Length of EXT statistics.
50 32 SMF42EXN 2 binary Number of EXT data sets.
Start of change52End of change Start of change34End of change Start of changeSMF42VCOEnd of change Start of change4End of change Start of changebinaryEnd of change Start of changeOffset to VCC statistics. End of change
Start of change56End of change Start of change38End of change Start of changeSMF42VCLEnd of change Start of change2End of change Start of changebinaryEnd of change Start of changeLength of VCC statistics. End of change
Start of change58End of change Start of change3AEnd of change Start of changeSMF42VCN End of change Start of change2End of change Start of changebinaryEnd of change Start of changeNumber of VCC sessions. End of change
The following six fields are only included with subtype 5:
36 24 SMF42SRO 4 binary Offset to storage class response time section from start of record, including record descriptor word (RDW).
40 28 SMF42SRL 2 binary Length of storage class response time section.
42 2A SMF42SRN 2 binary Number of storage class response time sections.
44 2C SMF42VHO 4 binary Offset to volume header section from start of record, including read descriptor word (RDW).
48 30 SMF42VHL 2 binary Length of volume header section.
50 32 SMF42VHN 2 binary Number of volume header sections.
The following three fields are only included with subtype 6:
36 24 SMF42JHO 4 binary Offset to job header section from start of record, including record descriptor word (RDW).
40 28 SMF42JHL 2 binary Length of job header section.
42 2A SMF42JHN 2 binary Number of job header sections.
The following six fields are only included with subtype 9:
36 24 SMF42ABO 4 binary Offset to X37 abend data section.
40 28 SMF42ABL 2 binary Length of X37 abend data section.
42 2A SMF42ABN 2 binary Number of X37 abend sections (always 1).
44 2C SMF42SMO 4 binary Offset to SMS data section (0 if data set is not SMS managed).
48 30 SMF42SML 2 binary Length of SMS data section (0 if data set is not SMS managed).
50 32 SMF42SMN 2 binary Number of SMS sections (always 1 if data set is SMS managed. Otherwise, 0).
The following three fields are only included with subtype 10:
36 24 SMF42VSF 4 binary Offset to volume selection failure record.
40 28 SMF42VSL 4 binary Length of volume selection failure record.
42 2A SMF42VSN 2 binary Number of volume selection failure records.
The following three fields are only included with subtype 11:
36 24 SMF42XRO 4 binary Offset to XRC service.
40 28 SMF42XRL 2 binary Length of XRC service.
42 2A SMF42XRN 2 binary Number of XRC sessions.
The following three fields are only included with subtype 14:
36 24 SMF42T14 4 binary Offset to ADSM section.
40 28   2 binary Length of ADSM section.
42 2A   2 binary Number of ADSM sections, 1.
The following six fields are only included with subtype 15 for buffers below the bar:
36 24 SMF42FC1 4 binary Offset to sysplex-wide storage class (SC) summary data section.
40 28 SMF42FC2 2 binary Length of sysplex-wide SC summary data section.
42 2A SMF42FC3 2 binary Number of sysplex-wide SC summary data sections.
44 2C SMF42FC4 4 binary Offset to SC, CF, SYS summary section.
48 30 SMF42FC5 2 binary Length of SC, CF, SYS summary section.
50 32 SMF42FC6 2 binary Number of SC, CF, SYS summary sections.
The following six fields are only included with subtype 15 for buffers above the bar:
52 34 SMF2AFC1 4 binary Offset to sysplex-wide storage class (SC) summary data section.
56 38 SMF2AFC2 2 binary Length of sysplex-wide SC summary data section.
58 3A SMF2AFC3 2 binary Number of sysplex-wide SC summary data sections.
60 3C SMF2AFC4 4 binary Offset to SC, CF, SYS summary section.
64 40 SMF2AFC5 2 binary Length of SC, CF, SYS summary section.
66 42 SMF2AFC6 2 binary Number of SC, CF, SYS summary sections.
The following six fields are only included with subtype 16 for buffers below the bar:
36 24 SMF42GD1 4 binary Offset to sysplex-wide data set summary section.
40 28 SMF42GD2 2 binary Length of sysplex-wide data set summary section.
42 2A SMF42GD3 2 binary Number of sysplex-wide data set summary sections.
44 2C SMF42GD4 4 binary Offset to data set, CF, SYS summary section.
48 30 SMF42GD5 2 binary Total length of all data set, CF, SYS summary sections.
50 32 SMF42GD6 2 binary Number of data set, CF, SYS summary sections.
The following six fields are only included with subtype 16 for buffers above the bar:
52 34 SMF2AGD1 4 binary Offset to sysplex-wide data set summary section.
56 38 SMF2AGD2 2 binary Length of sysplex-wide data set summary section.
58 3A SMF2AGD3 2 binary Number of sysplex-wide data set summary sections.
60 3C SMF2AGD4 4 binary Offset to data set, CF, SYS summary section.
64 40 SMF2AGD5 2 binary Total length of all data set, CF, SYS summary sections.
66 42 SMF2AGD6 2 binary Number of data set, CF, SYS summary sections.
The following six fields are only included with subtype 17:
36 24 SMF42HL1 4 binary Offset to MVS™ system CF lock structure activity totals section.
40 28 SMF42HL2 2 binary Length of MVS system CF lock structure activity totals section.
42 2A SMF42HL3 2 binary Number of MVS system CF lock structure activity totals sections.
44 2C SMF42HL4 4 binary Offset to lock structure summary section.
48 30 SMF42HL5 2 binary Length of lock structure summary section.
50 32 SMF42HL6 2 binary Number of lock structure summary sections.
The following nine fields are only included with subtype 18:
36 24 SMF42IM1 4 binary Offset to CF cache partition activity totals section.
40 28 SMF42IM2 2 binary Length of CF cache partition activity totals section.
42 2A SMF42IM3 2 binary Number of CF cache partition activity totals sections.
44 2C SMF42IM4 4 binary Offset to single CF cache partition summary section.
48 30 SMF42IM5 2 binary Length of single CF cache partition summary section.
50 32 SMF42IM6 2 binary Number of single CF cache partition summary sections.
52 34 SMF42IM7 4 binary Offset to directory/element ratio data sections.
56 38 SMF42IM8 2 binary Length of directory/element ratio data sections.
58 3A SMF42IM9 2 binary Number of directory/element ratio data sections.
The following six fields are only included with subtype 19 for buffers below the bar:
36 24 SMF42JN1 4 binary Offset to Sysplex Buffer Manager LRU activity totals section.
40 28 SMF42JN2 2 binary Length of Sysplex Buffer Manager LRU activity totals section.
42 2A SMF42JN3 2 binary Number of Sysplex Buffer Manager LRU activity totals sections.
44 2C SMF42JN4 4 binary Offset to Local Buffer Manager LRU activity section.
48 30 SMF42JN5 2 binary Length of Local Buffer Manager LRU activity section.
50 32 SMF42JN6 2 binary Number of Local Buffer Manager LRU activity sections.
The following six fields are only included with subtype 19 for buffers above the bar:
52 34 SMF2AJN1 4 binary Offset to Sysplex Buffer Manager LRU activity totals section.
56 38 SMF2AJN2 2 binary Length of Sysplex Buffer Manager LRU activity totals section.
58 3A SMF2AJN3 2 binary Number of Sysplex Buffer Manager LRU activity totals sections.
60 3C SMF2AJN4 4 binary Offset to Local Buffer Manager LRU activity section.
64 40 SMF2AJN5 2 binary Length of Local Buffer Manager LRU activity section.
66 42 SMF2AJN6 2 binary Number of Local Buffer Manager LRU activity sections.
The following six fields are only included with subtype 20:
36 24 SMF42KN1 4 binary Offset to STOW Initialize section.
40 28 SMF42KN2 2 binary Length of STOW Initialize section.
42 2A SMF42KN3 2 binary Number of STOW Initialize sections.
44 2C SMF42KN4 4 binary Offset to STOW Initialize additional information section.
48 30 SMF42KN5 2 binary Length of STOW Initialize additional information section.
50 32 SMF42KN6 2 binary Number of STOW Initialize additional information section.
The following nine fields are only included with subtype 21:
36 24 SMF42LN1 4 binary Offset to Member Delete section.
40 28 SMF42LN2 2 binary Length of Member Delete section.
42 2A SMF42LN3 2 binary Number of Member Delete sections.
44 2C SMF42LN4 4 binary Offset to Deleted Alias Names section.
48 30 SMF42LN5 2 binary Length of Deleted Alias Names section.
50 32 SMF42LN6 2 binary Number of Deleted Alias Names sections.
52 34 SMF42LN7 4 binary Offset to Member Delete additional information section.
56 38 SMF42LN8 2 binary Length of Member Delete additional information section.
58 3A SMF42LN9 2 binary Number of Member Delete additional information section.
The following six fields are only included with subtype 22:
36 24 SMF42AUD 4 binary Offset to audit section
40 28 SMF42LAD 2 binary Length of audit section.
42 2A SMF42NAD 2 binary Number of audit sections.
44 2C SMF42REC 4 binary Offset to record section.
48 30 SMF42LRC 2 binary Length of record section.
50 32 SMF42NRC 2 binary Number of record sections.
The following three fields are only included with subtype 23:
36 24 SMF42SEC 4 binary Offset to security section.
40 28 SMF42LSC 2 binary Length of security section.
42 2A SMF42NSC 2 binary Number of security sections.
The following nine fields are only included with subtype 24:
36 24 SMF42PN1 4 binary Offset to Member add/replace header section.
40 28 SMF42PN2 2 binary Length of Member add/replace header section.
42 2A SMF42PN3 2 binary Number of Member add/replace header section.
44 2C SMF42PN4 4 binary Offset to Alias names section.
48 30 SMF42PN5 2 binary Length of Alias names section.
50 32 SMF42PN6 2 binary Number of Alias names section.
52 34 SMF42PN7 4 binary Offset to Member add/replace additional information section.
56 38 SMF42PN8 2 binary Length of Member add/replace additional information section.
58 3A SMF42PN9 2 binary Number of Member add/replace additional information section.
The following nine fields are only included with subtype 25:
36 24 SMF42QN1 4 binary Offset to Member rename section.
40 28 SMF42QN2 2 binary Length of Member rename section.
42 2A SMF42QN3 2 binary Number of Member rename sections.
44 2C SMF42QN4 4 binary Offset to old member name section.
48 30 SMF42QN5 2 binary Length of old member name section.
50 32 SMF42QN6 2 binary Number of old member name sections.
52 34 SMF42QN7 4 binary Offset to Member rename additional information section.
56 38 SMF42QN8 2 binary Length of Member rename additional information section.
58 3A SMF42QN9 2 binary Number of Member rename additional information section.
Parent topic: Record mapping