SMF record header

The SMF record header appears at the beginning of each record.

SMF header field descriptions are shown in the following table. The numbers in the Offset column are in hexadecimal format. The numbers in the Length column are in decimal format.

SMF header field descriptions

Offset

Name

Length

Format

Description

0 0

SMFRCDJO

180

Structure

SMF record mapping for Job Optimizer

0 0

SMFJOHDR

28

Structure

SMF record header fields

0 0

SMFJOLEN

2

Binary

Record length

2 2

SMFJOSEG

2

Binary

Segment descriptor

4 4

SMFJOFLG

1

Binary

System indicator

Note: For IBM MVS/ESA SP operating system version 4 and later, bits 3, 4, 5, and 6 are on.

Bit

Definition

SMFJOFSS

0

Subsystem identification follows system identification

SMFJOFST

1

Subtypes used

 

2

Reserved

3–6

MVS version indicators (set by SMF)

7

Reserved

5 5

SMFJORTY

1

Binary

User-defined record type

6 6

SMFJDOTME

4

Binary

Local time, in hundredths of a second, when the record was moved to the SMF buffer

10 A

SMFJODTE

4

Packed

Date that the record was moved to the SMF buffer

The form is 0cyydddF; F is the sign.

14 E

SMFJOSID

4

Character

System identification (taken from the SID parameter)

18 12

SMFJOSSI

4

Character

Subsystem identifier for the MainView Batch Optimizer address space

22 16

SMFJOSTP

2

Binary

Record subtype

2 identifies this record as a Job Optimizer SMF record.

24 18

SMFJOSDL

4

Binary

Length of self-defining section

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