








	*SMF Tools*

SMF Type 40 Record

This table shows the record layout for type 40 SMF records
(Dynamic DD).

List of other SMF record layouts available.
List of sample SMF reports.

Purpose: Record type 40 is written when an unallocation, concatenation, or deconcatenation request is processed. For an unallocation request, this record contains a device entry only for the data set unallocated. For a concatenation or deconcatenation request, this record contains a device entry for each DD entry.

Record type 40 contains the job log identification, user identification, step number, functional indicator, and device entries. Each device entry consists of the device class, unit type, device number, and execute channel program (EXCP) count for the data set.

Note: IBM recommends that you use record type 30 rather than record types 4, 5, 20, 34, 35, and 40.

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SMF Type 40 Record -- Dynamic DD
Offset (Dec.)	Offset (Hex)	Name	Length	Format	Description
0	0	SMF40_ TDDRLEN	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” on page 13-1 for a detailed description.
2	2	SMF40_ TDDRSEG	2	binary	Segment descriptor (see record length field).
4	4	SMF40_ TDDRFLG	1	binary	System indicator: Bit Meaning When Set 0-2 Reserved 3-6 Version indicators* 7 Reserved.*See “Standard SMF Record Header” on page 13-1 for a detailed description.
5	5	SMF40_ TDDRCDTY	1	binary	Record type 40 (X'28').
6	6	SMF40_ TDDRCDTS	4	binary	Time since midnight, in hundredths of a second, that the record was moved into the SMF buffer.
10	A	SMF40_ TDDRCDTE	4	packed	Date when the record was moved into the SMF buffer, in the form 0cyydddF. See “Standard SMF Record Header” on page 13-1 for a detailed description.
14	E	SMF40_ TDDCPUID	4	EBCDIC	System identification (from the SID parameter).
18	12	SMF40_ TDDUIF	8	EBCDIC	Job name.
26	1A	SMF40_ TDDONTME	4	binary	Logon time, in hundredths of a second. (If a background job, this field contains the time the reader recognized the JOB card.)
30	1E	SMF40_ TDDONDTE	4	packed	Logon date, in the form 0cyydddF. See “Standard SMF Record Header” on page 13-1 for a detailed description. (If a background job, this field contains the date the reader recognized the JOB card.)
34	22	SMF40_ TDDUDATA	8	EBCDIC	User-defined identification field (taken from common exit parameter area, not from USER=parameter on job statement).
42	29	SMF40_ TDDINVSQ	1	binary	Step number (first step = 1, etc).
43	2B	SMF40_ TDDFLG	1	binary	Functional indicator Value Meaning 2 Unallocation 3 Concatenation 4 Deconcatenation.
44	2C	SMF40_ TDDRIN	2	binary	Record indicator Bit Meaning When Set 0-6 Reserved 7 EXCP count may be wrong 8-15 Reserved.
46	2E	SMF40_ TDDRCIND	2	binary	Index of record in sequence of records. Note: In releases prior to 4.2.2, this field is zero.
48	30	SMF40_ TDDRCTOT	2	binary	Total number of records in sequence of records. Note: In releases prior to 4.2.2, this field is zero.
50	32	SMF40_ TDDRVA	14	--	Reserved.
64	40	SMF40_ TDDVAR	2	binary	Length of device entry portion of this record. Calculated as: (8 times the number of devices) + 2.
Execute Channel Program (EXCP) Section For each device, there is an eight-byte entry with the following format(Offset from beginning of record: 66)
0	0	SMF40_ TDDEXCP	8	Structure	Data set access information. Note: Virtual I/O devices are identified by the following: Device Class 0 Unit Type 0 Device Number X'7FFF'It is important to understand the following: Allocation messages for VIO data sets will show VIO ALLOCATED TO ddname. SMF records will show VIO unit addresses as X'7FFF'. The actual in-storage UCB built for VIO will show address X'3FFF'.For example, the messages: IEF237I X'3FFF' ALLOCATED TO ddname IEF237I X'7FFF' ALLOCATED TO ddname indicate that ddname is not allocated to a Virtual I/O device, but is instead allocated to a real device whose unit address is X'3FFF' or X'7FFF' respectively.
0	0	SMF40_ TDDDEVC	1	binary	Device class.
1	1	SMF40_ TDDUTYP	1	binary	Unit type.
2	2	SMF40_ TDDCUAD	2	binary	Device number.
4	4	SMF40_ TDDNEXCP	4	binary	EXCP count (see offset 44).

The table above is based on the description provided by IBM in its "MVS Systems Management Facilities (SMF)" manual.

Spectrum SMF Writer - the 4GL SMF Report Writer.

SMF Type 40 Record

This table shows the record layout for type 40 SMF records (Dynamic DD).

It's easy to report on SMF 40 data!

This table shows the record layout for type 40 SMF records
(Dynamic DD).