








	*SMF Tools*

SMF Type 76 Record

This table shows the record layout for type 76 SMF records
(RMF Trace Activity - z/OS 1.10).

List of other SMF record layouts available.
List of sample SMF reports.

Purpose: Record type 76 is written at the end of each measurement interval. One record is written for each field name sampled during the interval.

As with all SMF records produced by RMF, record type 76 contains a header section and RMF product section. These are followed by:

Trace Control Section Contains the number of sample sets in the trace.
Trace Data Section Contains information on the minimum value of the field, the maximum value of the field, the sum of the squared values of the field, and the final value sampled from the field.
Variable Trace Data Section Contains the trace values collected for each set grouped at the end of the record

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SMF Type 76 Record -- RMF Trace Activity - z/OS 1.10
Offset (Dec.)	Offset (Hex)	Name	Length	Format	Description
0	0	SMF76LEN	2	binary	Record length. This field and the next field (total of four bytes) form the RDW (record descriptor word). See “Standard SMF Record Header” on page 13-1 for a detailed description. This field and the next are collectively referred at as the RDW. (record descriptor word). See “Standard SMF Record Header” on page 13-1 for a detailed description.
2	2	SMF76SEG	2	binary	Segment descriptor (see record length field).
4	4	SMF76FLG	1	binary	System indicator Bit Meaning When Set 0 New record format 1 Subtypes used 2 Reserved. 3-6 Version indicators* 7 System is running in PR/SM mode.*See “Standard SMF Record Header” on page 13-1 for a detailed description.
5	5	SMF76RTY	1	binary	Record type 76 (X'4C').
6	6	SMF76TME	4	binary	Time since midnight, in hundredths of a second, when the record was moved into the SMF buffer.
10	A	SMF76DTE	4	packed	Date when the record was moved into the SMF buffer, in the form 0cyydddF. See “Standard SMF Record Header” on page 13-1 for a detailed description.
14	E	SMF76SID	4	EBCDIC	System identification (from the SMFPRMxx SID parameter).
18	12	SMF76SSI	4	EBCDIC	Subsystem identification (‘RMF’).
22	16	SMF76STY	2	binary	Record subtype=1.
24	18	SMF76TRN	2	binary	Number of triplets in this record. A triplet is a set of three SMF fields (offset/length/number values) that defines a section of the record. The offset is the offset from the RDW.
26	1A	--	2	binary	Reserved.
28	1C	SMF76PRS	4	binary	Offset to RMF product section from start of record, including record descriptor word (RDW).
32	20	SMF76PRL	2	binary	Length of RMF product section.
34	22	SMF76PRN	2	binary	Number of RMF product sections.
36	24	SMF76TCS	4	binary	Offset to trace control section from start of record, including record descriptor word (RDW).
40	28	SMF76TCL	2	binary	Length of trace control section.
42	2A	SMF76TCN	2	binary	Number of trace control sections.
44	2C	SMF76TDS	4	binary	Offset to trace data entry section from start of record, including record descriptor word (RDW).
48	30	SMF76TDL	2	binary	Length of trace data entry section.
50	32	SMF76TDN	2	binary	Number of trace data entry sections.
52	34	SMF76VFS	4	binary	Offset to variable format set from start of record, including record descriptor word (RDW).
56	38	SMF76VFL	2	binary	Length of variable format set.
58	3A	SMF76VFN	4	binary	Number of variable format sets.
RMF Product Section(Offset from beginning of record: SMF76PRS)
0	0	SMF76MFV	2	packed	RMF version number.
2	2	SMF76PRD	8	EBCDIC	Product name (‘RMF’).
10	A	SMF76IST	4	packed	Time that the RMF measurement interval started, in the form 0hhmmssF, where hh is the hours, mm is the minutes, ss is the seconds, and F is the sign.
14	E	SMF76DAT	4	packed	Date when the RMF measurement interval started, in the form 0cyydddF. See “Standard SMF Record Header” on page 13-1 for a detailed description.
18	12	SMF76INT	4	packed	Duration of the RMF measurement interval, in the form mmsstttF where mm is the minutes, ss is the seconds, ttt is the milliseconds, and F is the sign. (The end of the measurement interval is the sum of the recorded start time and this field.)
22	16	--	2	binary	Reserved.
24	18	SMF76SAM	4	binary	Number of RMF samples.
28	1C	--	2	binary	Reserved.
30	1E	SMF76FLA	2	binary	Flags Bit Meaning When Set 0 Reserved 1 Samples have been skipped 2 Record was written by RMF Monitor III 3 Interval was synchronized with SMF 4-15 Reserved.
32	20	--	4	binary	Reserved.
36	24	SMF76CYC	4	packed	Sampling cycle length, in the form 000ttttF, where tttt is the milliseconds and F is the sign (taken from CYCLE option). The range of values is 0.050 to 9.999 seconds.
40	28	SMF76MVS	8	EBCDIC	MVS software level (consists of an acronym and the version, release, and modification level - ZVvvrrmm).
48	30	SMF76IML	1	binary	Indicates the type of processor complex on which data measurements were taken. Value Meaning 3 9672, zSeries 49 31 SMF75PRF 1 binary Processor flags. Bit Meaning When Set 0 The system has expanded storage 1 The processor is enabled for ES connection architecture (ESCA) 2 There is an ES connection director in the configuration 3 System is running in z/Architecture mode 4 At least one zAAP is currently installed 5 At least one zIIP is currently installed 6 Enhanced DAT architecture available 7 Reserved.
50	32	SMF76PTN	1	binary	PR/SM partition number of the partition that wrote this record.
51	33	SMF76SRL	1	binary	SMF record level change number (X’55’ for z/OS V1R10 RMF). This field enables processing of SMF record level changes in an existing release.
52	34	SMF76IET	8	char	Interval expiration time token. This token can be used to identify other than RMF records that belong to the same interval (if interval was synchronized with SMF).
60	3C	SMF76LGO	8	binary	Offset GMT to local time (STCK format).
68	44	SMF76RAO	4	binary	Offset to reassembly area relative to start of RMF product section.
72	48	SMF76RAL	2	binary	Length of reassembly area. Area consists of a fixed header and a variable number of information blocks. Length depends on the record type/subtype, but is fixed for a specific type/subtype.
74	4A	SMF76RAN	2	binary	Reassembly area indicator. Value Meaning 0 Record is not broken. 1 Record is broken.Note: This field is used to indicate whether an SMF record is a broken record. Therefore, offset (SMF76RAO) and length (SMF76RAL) are only valid if SMF76RAN = 1. A reassembly area is only present in broken records.
76	4C	SMF76OIL	2	binary	Original interval length as defined in the session or by SMF (in seconds).
78	4E	SMF76SYN	2	binary	SYNC value in seconds.
80	50	SMF76GIE	8	binary	Projected gathering interval end (STCK format) GMT time.
88	58	SMF76XNM	8	EBCDIC	Sysplex name as defined in parmlib member COUPLExx.
96	60	SMF76SNM	8	EBCDIC	System name for current system as defined in parmlib member IEASYSxx SYSNAME parameter.
Reassembly Area(Offset from beginning of record: SMF76PRS + SMF76RAO)
0	0	SMF76RBR	2	binary	Total number of broken records built from the original large record.
2	2	SMF76RSQ	2	binary	Sequence number of this broken record. Every broken record built from the same large record must have a unique sequence number, it is in the range from 1 to SMF76RBR.
4	4	SMF76RIO	4	binary	Offset to first reassembly information block relative to start of reassembly area header.
8	8	SMF76RIL	2	binary	Length of reassembly information block.
10	A	SMF76RIN	2	binary	Number of reassembly information blocks (same value as SMF76TRN in header section).
12	C	--	4	binary	Reserved.
Reassembly Area Information Block(Offset from beginning of record: SMF76PRS + SMF76RA0 + SMF76RIO)
0	0	SMF76RNN	2	binary	Total number of sections in the original large record. This field contains information of how many sections of a specific type were contained in the original SMF record. This field is a copy of the number field of the triplet in the original (non broken) record.
2	2	SMF76RPP	2	binary	Position of the first of one or more consecutive sections described by this block as in the original record. Values in the range of 1 to SMF76RNN are valid for correct processing. A value of 0 will skip processing of this information block. This field provides information where the sections that are part of this broken record were placed in the original record before the split took place. The actual number of consecutive sections contained in this record is available from the actual triplet in the header extension.
Trace Control Section(Offset from beginning of record: SMF76TCS)
0	0	SMF76NUM	2	binary	Number of sample sets (lines of data) in the trace.
2	2	--	2	binary	Reserved.
Trace Data Section(Offset from beginning of record: SMF76TDS)
0	0	SMF76NAM	8	EBCDIC	Field name.
8	8	SMF76OPT	1	binary	Trace options Bit Meaning When Set 0 Minimum value of the field is contained in the SMF record 1 Maximum value of the field is contained in the SMF record 2 The sum of the values required to calculate the average of the field is contained in the SMF record 3 The sum of the squared values required to calculate the standard deviation of the field is contained in the SMF record 4 End value of the field is contained in the SMF record 5 All options selected 6 Domain tracing terminated 7 This entry is a domain field.
9	9	SMF76OP1	1	binary	Trace options Bit Meaning When Set 0 LPB trace requested 1 LPB trace request ended 2 Traced data in record is valid 3-7 Reserved.
10	A	SMF76SLN	1	binary	Length of a set.
11	B	SMF76DLN	1	binary	Length of a field sampled.
12	C	SMF76SSS	2	binary	Standard samples per set used.
14	E	SMF76SSL	2	binary	Samples per set.
16	10	SMF76MIN	4	binary	Minimum value during interval.
20	14	SMF76MAX	4	binary	Maximum value during interval.
24	18	SMF76AVG	8	binary	Accumulated value used to compute the average.
32	20	SMF76STD	12	binary	Sum of squares (used to compute standard deviation).
44	2C	SMF76ENV	4	binary	End value of field.
Variable Format Sets Section(Offset from beginning of record: SMF76VFS)
0	0	SMF76D	4	binary	Trace values collected for each set, stored in an array of either fullwords or halfwords, depending on the length of the field being sampled. There will be one group of values for each sample set (line of data) in the trace.

The table above is based on the description provided by IBM in its "MVS Systems Management Facilities (SMF)" manual.

Spectrum SMF Writer - the 4GL SMF Report Writer.

SMF Type 76 Record

This table shows the record layout for type 76 SMF records (RMF Trace Activity - z/OS 1.10).

It's easy to report on SMF 76 data!

This table shows the record layout for type 76 SMF records
(RMF Trace Activity - z/OS 1.10).