Header/Self-defining Section

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

Offsets		Name	Length	Format	Description
0	0	SMF0LEN	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 for a detailed description.
2	2	SMF0SEG	2	binary	Segment descriptor (see record length field).
4	4	SMF0FLG	1	binary	System indicator: Bit Meaning when set 0-2 Reserved 3-6 Version indicators* 7 Reserved. *See Standard SMF record header for a detailed description.
5	5	SMF0RTY	1	binary	Record type 0 (X'00')
6	6	SMF0TME	4	binary	Time since midnight, in hundredths of a second, that the record was moved into the SMF buffer.
10	A	SMF0DTE	4	packed	Date when the record was moved into the SMF buffer, in the form 0`cyydddF`. See Standard SMF record header for a detailed description.
14	E	SMF0SID	4	EBCDIC	System identification (from the SID parameter).
18	12	SMF0JWT	4	binary	Limit, in minutes, of continuous wait for the job (taken from JWT parameter). Continuous wait time is defined as time spent waiting while the application program is in control. For example, for data sets allocated dynamically (while the application program is running, for example) either or both of the following count toward a job's continuous wait time: The time required to recall a data set from HSM Migration Levels 1 or 2 The time required to mount a tape If a data set was allocated statically (for a DD statement, for example) these activities will not be counted towards the job's continuous wait time.
22	16	SMF0BUF	4	binary	This field contains meaningless information.
26	1A	SMF0VST	4	binary	Number of 1K bytes in virtual storage.
30	1E	SMF0OPT	1	binary	SMF options Bit Meaning when set 0 Reserved 1 Reserved 2 Reserved. 3 Data set accounting. Record types selected. This bit is on when one of the following record types is selected: 14, 15, 17, 18, 62, 63, 64, 67 or 68. (See TYPE and NOTYPE — Selecting and directing SMF records.) 4 Volume accounting. Record types 10 or 69 selected. (See TYPE and NOTYPE — Selecting and directing SMF records.) 5 Reserved. 6 Type 17 records will be written for temporary data sets (REC(ALL)). 7 Reserved.
31	1F	SMF0RST	4	binary	Number of 1K bytes in central storage.
35	23	SMF0RSV	1		Reserved.
36	24	SMF0OSL	8	EBCDIC	MVS™ product name.
44	2C	SMF0SYN	8	EBCDIC	System name (from the SYSNAME parameter in the IEASYSxx parmlib member).
52	34	SMF0SYP	8	EBCDIC	Sysplex name (from the SYSPLEX parameter in the COUPLExx parmlib member).
60	3C	SMF0TZ	4	binary	Difference in time between local time and Greenwich mean time in binary units of 1.048576 seconds. The value of SMF0TZ is copied from the CVTTZ field. For more information about the CVTTZ field, see the CVT mapping macro in z/OS® MVS Data Areas in z/OS Internet library.
64	40	SMF0MSWT	4	binary	Started task wait time limit (SMFPRMxx SWT(hhmm) value) converted to minutes.
68	44	SMF0MTWT	4	binary	TSO wait time limit (SMFPRMxx TWT(hhmm) value) converted to minutes.