








	*SMF Tools*

SMF Type 99 Record (Subtype 10) - z/OS 1.13

This table shows the record layout for type 99 SMF records
(System Resource Manager (SRM) Decisions - z/OS 1.13).

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

Purpose: This record type is written by the SRM component. The records contain:

Performance data for each service class period
Trace codes representing the SRM actions
The data which SRM used to decide which actions to take
The controls SRM is using to manage work.

In addition, subtypes 1 and 9 will be written by the SRM component when running in compatibility mode.

Record 99 has the following subtypes:

Subtype 1 Contains system level data, the trace of SRM actions, and data about resource groups. The SRM actions are recorded in trace codes. All trace codes are described in z/OS MVS Programming: Workload Management Services. A subtype 1 record is written every policy interval.

Subtype 2 Contains data for service classes. A subtype 2 record is written every policy interval for each service class if any period in the service class had recent activity.

Subtype 3 Contains service class period plot data. A subtype 3 record is written every policy interval for each service class if any period in the service class had recent activity and plot data.

Subtype 4 Contains information about a device cluster. A device cluster is a set of service classes that compete to use the same non-paging DASD devices. A subtype 4 record is written every policy interval for each device cluster in the system.

Subtype 5 Contains data about monitored address spaces. A subtype 5 record is written each policy interval for each swapped in monitored address space.

Subtype 6 Contains summary information about each service class period, including the resource control settings for the next policy interval. A subtype 6 record is written each policy interval.

Subtype 7 Contains summary information for the Enterprise Storage Server (ESS) with Parallel Access Volume (PAV) feature. A subtype 7 record is written every third policy interval.

Subtype 8 Contains summary information for LPAR CPU management. A subtype 8 record is written each policy interval, when in LPAR mode.

Subtype 9 Contains summary information for dynamic channel path management. A subtype 9 record is written each policy interval.

Subtype 10 Contains information about dynamic processor speed changes. A subtype 10 record is written for every processor speed change.

Subtype 11 Contains information about Group Capacity Limits. A subtype 11 record is written every 5 minutes.

Subtype 12 Contains information about HiperDispatch. This information is for IBM internal use only.

Subtype 13 Contains information about HiperDispatch. This information is for IBM internal use only.

Subtype 14 Contains information about HiperDispatch. This information is for IBM internal use only.

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SMF Type 99 Record -- System Resource Manager (SRM) Decisions - z/OS 1.13
Offset (Dec.)	Offset (Hex)	Name	Length	Format	Description
0	0	SMF99S10_ LEN	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	SMF99S10_ SEG	2	binary	Segment descriptor (see record length field).
4	4	SMF99S10_ FLG	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	SMF99S10_ RTY	1	binary	Record type 99
6	6	SMF99S10_ TME	4	binary	Time since midnight, in hundredths of a second, that the record was moved into the SMF buffer.
10	0A	SMF99S10_ DTE	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	0E	SMF99S10_ SID	4	EBCDIC	System identification (from the SID parameter).
18	12	SMF99S10_ SSID	4	EBCDIC	Sub system identification
22	16	SMF99S10_ TID	2	binary	Record subtype (must be at offset X'16' x).
24	18	SMF99S10_ SDEF_ LEN	4	binary	Length of the self definition section.
Self-Defining Section(Offset from beginning of record: 28)
0	0	SMF99S10_ POF	4	binary	Offset to the product section from the beginning of the record (including RDW).
4	4	SMF99S10_ PLN	2	binary	Length of the product section.
6	6	SMF99S10_ PON	2	binary	Number of the product section.
8	8	SMF99S10_ DOF	4	binary	Offset to data section from beginning of the record (including RDW).
12	C	SMF99S10_ DLN	2	binary	Length of the data section.
14	E	SMF99S10_ DON	2	binary	Number of the data section.
SMF 99 Product Information(Offset from beginning of record: SMF99S10_POF)
0	0	SMF99S10_ VN2	2	binary	Record sub-version. Use to identify changes to the record in the service stream.
2	2	SMF99S10_ RVN	2	binary	Record version number.
4	4	SMF99S10_ PNM	8	EBCDIC	Product name - SRM
12	C	SMF99S10_ SLV	8	EBCDIC	System level from which record was cut (Copied from CVTPRODN).
20	14	SMF99S10_ SNM	8	EBCDIC	System name from which record was cut (Copied from CVTSNAME)
28	1C	SMF99S10_ PFLG	1	binary	Record Flags: Bit Meaning When Set 0 Only a subset of the available data was written to avoid that this record gets larger than 32 KByte 1 Only a subset of the available data is written to this record. The rest follows in subsequent records. This record contains a reassembly area. 2–7 Reserved.
29	1D	--	3	EBCDIC	Reserved.
Subtype 10 - Self Defining Section(Offset from beginning of record: SMF99S10_DOF)
0	0	SMF9910_ CPU_ DATA_ OFFSET	4	HEX	Offset to CPU data section from beginning of record
4	4	SMF9910_ CPU_ DATA_ LENGTH	2	HEX	Length of CPU data section
6	6	SMF9910_ CPU_ DATA_ NUMBER	2	HEX	Number of CPU data sections
8	8	SMF9910_ PROC_ SPEED_ CHG_ DATA_ OLD_ OFFSET	4	HEX	Offset to old processor speed change data section (including RDW)
12	C	SMF9910_ PROC_ SPEED_ CHG_ DATA_ OLD_ LENGTH	2	HEX	Length of old processor speed change data section
14	E	SMF9910_ PROC_ SPEED_ CHG_ DATA_ OLD_ NUMBER	2	HEX	Number of old processor speed change data sections
16	10	SMF9910_ PROC_ SPEED_ CHG_ DATA_ NEW_ OFFSET	4	HEX	Offset to new processor speed change data section (including RDW
20	14	SMF9910_ PROC_ SPEED_ CHG_ DATA_ NEW_ LENGTH	2	HEX	Length of new processor speed change data section
22	16	SMF9910_ PROC_ SPEED_ CHG_ DATA_ NEW_ NUMBER	2	HEX	Number of new processor speed change data sections 0 0 * 2 HEX Reserved
2	2	SMF99A_ CPU_ RmctScSq	2	HEX	Number of speed changes 4 4 * 108 HEX Reserved 0 0 * 12 HEX Reserved
12	C	SMF99A_ PSC_ RMCTCpMp	4	HEX	CP speed
16	10	SMF99A_ PSC_ RMCTAdjc	4	HEX	CPU rate adjustment factor 20 14 * 2088 HEX Reserved

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 99 Record (Subtype 10) - z/OS 1.13

This table shows the record layout for type 99 SMF records (System Resource Manager (SRM) Decisions - z/OS 1.13).

It's easy to report on SMF 99 data!

This table shows the record layout for type 99 SMF records
(System Resource Manager (SRM) Decisions - z/OS 1.13).