This topic applies only on the z/OS operating system.

Header/self-defining section

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

Table 1. Header/self-defining section of an SMF record. 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.
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

9. Request Activity record

24 18 SM120TRN 4 binary Number of triplets in the record.
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.
Individual header extension for subtype 9
24 18 SM1209AA 4 binary Subtype version number
28 1C SM1209AB 4 binary Number of triplets
32 20 SM1209AC 4 binary Index of this record
36 24 SM1209AD 4 binary Total number of records
40 28 SM1209AE 8 EBCDIC Record continuation token
The following triplet appears for the Platform neutral server information section.
48 30 SM1209AF 4 binary The offset to the Platform neutral server information section
52 34 SM1209AG 4 binary The length of the Platform neutral server information section
56 38 SM1209AH 4 binary The number of Platform neutral server information sections
The following triplet appears for the z/OS® server information section.
60 3C SM1209AI 4 binary The offset to the z/OS server information section
64 40 SM1209AJ 4 binary The length of the z/OS server information section
68 44 SM1209AK 4 binary The number of z/OS server information sections
The following triplet appears for the Platform neutral request information section.
72 48 SM1209AL 4 binary The offset to the Platform neutral request information section
76 4C SM1209AM 4 binary The length of the Platform neutral request information section
80 50 SM1209AN 4 binary The number of Platform neutral request information sections
The following triplet appears for the z/OS request information section.
84 54 SM1209AO 4 binary The offset to the z/OS request information section
88 58 SM1209AP 4 binary The length of the z/OS request information section
92 5C SM1209AQ 4 binary The number of z/OS request information sections
The following triplet appears for the z/OS formatted timestamps section. This section contains zeros when the formatted timestamps are not being collected.
96 60 SM1209AR 4 binary The offset to the z/OS formatted timestamps section
100 64 SM1209AS 4 binary The length of the z/OS formatted timestamps section
104 68 SM1209AT 4 binary The number of z/OS formatted timestamps sections
The following triplet contains network information. Only one version of this section appears for IIOP, HTTP transports, and SIP transports. This section does not present for MDBs, or for internal protocols.
108 6C SM1209AU 4 binary The offset to the Network data for HTTP, SIP and IIOP transports section
112 70 SM1209AV 4 binary The length of the Network data for HTTP, SIP and IIOP transports section
116 74 SM1209AW 4 binary The number of Network data for HTTP, SIP and IIOP transports sections
The following triplet appears for the Classification data section.
120 78 SM1209AX 4 binary The offset to the Classification data section
124 7C SM1209AY 4 binary The length of the Classification data section
128 80 SM1209AZ 4 binary The number of Classification data sections
The following triplet appears for the Security data section.
132 84 SM1209BA 4 binary The offset to the Security data section
136 88 SM1209BB 4 binary The length of the Security data section
140 8C SM1209BC 4 binary The number of Security data sections
The following triplet appears 0-30 times for the CPU usage breakdown sections.
144 90 SM1209BD 4 binary The offset to the CPU usage breakdown
148 94 SM1209BE 4 binary The length of the CPU usage breakdown section
152 98 SM1209BF 4 binary The number of CPU usage breakdown sections
The following triplet appears for the user data section.
156 9C SM1209FB 4 binary The offset to the user data section
160 A0 SM1209FC 4 binary The length of the user data section
164 A4 SM1209FD 4 binary The number of user data sections
168 A8 * 36   Reserved



Related tasks
Collecting job-related information with the System Management Facility (SMF)
Related reference
Triplets
SMF Subtype 1: Server activity record
SMF Subtype 3: Server interval record
SMF Subtype 5: J2EE container activity record (Version 2)
SMF Subtype 6: J2EE container interval record (Version 2)
SMF Subtype 7: WebContainer activity record (Version 2)
SMF Subtype 8: WebContainer interval record (Version 2)
SMF Subtype 9: Request Activity record
Related information
MVS System Management Facilities (SMF)
Reference topic    

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Last updated: Oct 21, 2010 7:37:48 AM CDT
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