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	SMF18LEN	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	SMF18SEG	2	binary	Segment descriptor (see record length field).
4	4	SMF18FLG	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	SMF18RTY	1	binary	Record type 18 (X'12').
6	6	SMF18TME	4	binary	Time since midnight, in hundredths of a second, when the record was moved into the SMF buffer.
10	A	SMF18DTE	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	SMF18SID	4	EBCDIC	System identification (from the SID parameter).
18	12	SMF18JBN	8	EBCDIC	Job name. The job name, time, and date that the reader recognized the JOB card (for this job) constitute the job log identification, or transaction name (for APPC output).
26	1A	SMF18RST	4	binary	Time since midnight, in hundredths of a second, that the reader recognized the JOB card (for this job).
30	1E	SMF18RSD	4	packed	Date when the reader recognized the JOB card (for this job), in the form 0`cyydddF`. See Standard SMF record header for a detailed description.
34	22	SMF18UID	8	EBCDIC	User-defined identification field (taken from common exit parameter area, not from USER=parameter on job statement).
42	2A	SMF18RIN	2		Reserved.
42	2A	SMF18IN1	1	binary	Record indicator byte 1. Bit Meaning when set 0 Continuation record indicator for a multi-volume data set rename request whereby the volume being processed by rename is not the first volume. This flag is set when the volume serial number in this record is one that had a volume sequence number of more than one and rename is processing each volume individually. Field name SMF18CON.
43	2B	SMF18IN2	1	binary	Record indicator byte 2.
44	2C	SMF180DS	44	EBCDIC	Old data set name.
88	58	SMF18NDS	44	EBCDIC	New data set name.
132	84	SMF18RV1	3		Reserved.
135	87	SMF18NVL	1	binary	When rename is called one volume at a time, the value will be one for each SMF 18 record. When rename is called with a list, the value will reflect the total number of volumes processed in the list that are recorded in one SMF 18 record. This value designates the number of volume entries that follow.