[z/OS]

Header/self-defining section

These tables describe the header/self-defining section of an SMF record.

Offset (decimal) Offset (hexadecimal) Name Length Format Description
0 0 SM120LEN 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" in MVS System Management Facilities (SMF)" (SA22-7630), for a detailed description.
2 2 SM120SEG 2 binary Segment descriptor (see record length field)
4 4 SM120FLG 1 binary Bit meaning when set

0: New SMF record format

1: Subtypes used

2: Reserved

3-6: Version indicators*

7: Reserved

*See "Standard SMF record header" in MVS System Management Facilities (SMF)" (SA22-7630), for a detailed description.

5 5 SM120RTY 1 binary Record type 120(X'78')
6 6 SM120TME 4 binary Time since midnight, in hundredths of a second, that the record was moved into the SMF buffer.
10 A SM120DTE 4 packed Date when the record was moved into the SMF buffer, in the form 0 cyydddF. See "Standard SMF record header" in MVS System Management Facilities (SMF)" (SA22-7630), for a detailed description.
14 E SM120SID 4 EBCDIC System identification (from the SMFPRMxx SID parameter)
18 12 SM120SSI 4 EBCDIC Subsystem identification from SUBSYS parameter
22 16 SM120RST 2 binary Record subtype:

1: Server activity

2: Container activity

3: Server interval

4: Container interval.

5: J2EE container activity

6: J2EE container interval

7: WebContainer activity

8: WebContainer interval

24 18 SM120TRN 4 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.

Subtypes:

1: Value is equal to the number of sessions +2

2 and 4: Value is equal to the number of classes +2.

28 1C SM120PRS 4 binary Offset to product section from RDW.
32 20 SM120PRL 4 binary Length of product section.
36 24 SM120PRN 4 binary Number of product sections.
Individual header extension for subtype 1
40 28 SM120SAS 4 binary Offset to server activity section from RDW
44 2C SM120SAL 4 binary Length of server activity section
48 30 SM120SAN 4 binary Number of server activity sections
52 34 SM120CSS 4 binary Offset to communication session section from RDW
56 38 SM120CSL 4 binary Length of communication session section
60 3C SM120CSN 4 binary Number of communication session sections
64 40 SM120JHS 4 binary Offset to JVM heap section from RDW
68 44 SM120JHL 4 binary Length of JVM heap section
72 48 SM120JHN 4 binary Number of jvm heap sections
Individual header extension for subtype 3
40 28 SM120SIS 4 binary Offset to server interval section from RDW
44 2C SM120SIL 4 binary Length of server interval section
48 30 SM120SIN 4 binary Number of server interval sections
The following triplet appears 0-n times; once for each server region section.
52 34 SM120SRS 4 binary Offset to server region section from RDW
56 38 SM120SRL 4 binary Length of server region section
60 3C SM120SRN 4 binary Number of server region sections
Individual header extension for subtype 5
40 28 SM120JA1 4 binary Offset to J2EE container activity section from RDW
44 2C SM120JA2 4 binary Length of J2EE container activity section
48 30 SM120JA3 4 binary Number of J2EE container activity sections
The following triplet appears 0-n times; once for each bean section.
52 34 SM120JAS 4 binary Offset to bean section from RDW
56 38 SM120JAL 4 binary Length of bean section
60 3C SM120JAN 4 binary Number of bean sections
Individual header extension for subtype 6
40 28 SM120JI1 4 binary Offset to J2EE container interval section from RDW
44 2C SM120JI2 4 binary Length of J2EE container interval section
48 30 SM120JI3 4 binary Number of J2EE container interval sections
The following triplet appears 0-n times; once for each bean section.
52 34 SM120JIS 4 binary Offset to bean section from RDW
56 38 SM120JIL 4 binary Length of bean section
60 3C SM120JIN 4 binary Number of bean sections
Individual header extension for subtype 7
40 28 SM120WA1 4 binary Offset to WebContainer activity section from RDW.
44 2C SM120WA2 4 binary Length of WebContainer activity section.
48 30 SM120WA3 4 binary Number of WebContainer activity sections.
52 34 SM120WA4 4 binary Offset to HttpSessionManager activity section from RDW.
56 38 SM120WA5 4 binary Length of HttpSessionManager activity section.
60 3C SM120WA6 4 binary Number of HttpSessionManager activity sections.
The following triplet appears 0-n times, once for each WebApplication section.
64 40 SM120WA7 4 binary Offset to WebApplication section from RDW.
68 44 SM120WA8 4 binary Length of WebApplication section.
72 48 SM120WA9 4 binary Number of WebApplication sections.
Individual header extension for subtype 8
40 28 SM120WI1 4 binary Offset to WebContainer interval section from RDW.
44 2C SM120WI2 4 binary Length of WebContainer interval section.
48 30 SM120WI3 4 binary Number of WebContainer interval sections.
52 34 SM120WI4 4 binary Offset to HttpSessionManager interval section from RDW.
56 38 SM120WI5 4 binary Length of HttpSessionManager interval section.
60 3C SM120WI6 4 binary Number of HttpSessionManager interval sections.
The following triplet appears 0-n times, once for each WebApplication section.
64 40 SM120WI7 4 binary Offset to WebApplication section from RDW.
68 44 SM120WI8 4 binary Length of WebApplication section.
72 48 SM120WI9 4 binary Number of WebApplication sections.



Related tasks
Collecting job-related information with the System Management Facility (SMF)
Related reference
Triplets
Product section
Subtype 1: Server activity record
Subtype 3: Server interval record
Subtype 5: J2EE container activity record (Version 2)
Subtype 6: Container interval record (Version 2)
Subtype 7: WebContainer activity record (Version 2)
Subtype 8: WebContainer interval record (Version 2)
Related information
MVS System Management Facilities (SMF)
Reference topic Reference topic    

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