OAM SMF record header

The OAM SMF record header, as shown in Table 1, is at the beginning of each SMF record written by OAM:

Table 1. Header format for OAM SMF records
Offsets	Name	Length	Format	Description
0 0	SMF85LEN	2	binary	Record length.
2 2	SMF85SEG	2	binary	Segment descriptor.
4 4	SMF85FLG	1	binary	System indicator. Bit Meaning WHEN SET 0 Reserved. 1 Subtypes are valid. 2 Reserved. 3 MVS/SP Version 4 and above. bits 3, 4, 5, and 6 are on. See note. 4 MVS/SP Version 3. bits 4, 5, and 6 are on. 5 MVS/SP Version 2. bits 5 and 6 are on. 6 VS2 bit 6 is on. 7 Reserved. Recommendation: Use record type 30 to obtain the z/OS product level.
5 5	SMF85RTY	1	binary	Record type (decimal 85, hexadecimal X'55').
6 6	SMF85TME	4	binary	Time since midnight in hundredths of a second that the record was presented to SMF.
10 A	SMF85DTE	4	binary	Date the record was presented to SMF in the form of 0cyydddF, where F is the sign.
14 E	SMF85SID	4	EBCDIC	System Identification (from SID parameter).
18 12	SMF85SSI	4	EBCDIC	Subsystem identification, contains ’OAM‘ for all OAM SMF records.
22 16	SMF85STY	2	binary	Record subtype.
24 18	SMF85TRN	2	binary	Number of triplets in this record. A triplet is a set of offset/length/number values that defines a section of the record.
26 1A	SMF85PSO	4	binary	Offset to OAM product section.
30 1E	SMF85PSL	2	binary	Length of OAM product section.
32 20	SMF85PSN	2	binary	Number of OAM product section.
34 22	SMF85OSO	4	binary	Offset to OAM subtype data section.
38 26	SMF85OSL	2	binary	Length of OAM subtype data section.
40 28	SMF85OSN	2	binary	Number of OAM subtype data sections.
42 2A	*	6	binary	Reserved.