








	*SMF Tools*

SMF Type 99 Record (Subtype 7) - 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	SMF99S7_ 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	SMF99S7_ SEG	2	binary	Segment descriptor (see record length field).
4	4	SMF99S7_ 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	SMF99S7_ RTY	1	binary	Record type 99
6	6	SMF99S7_ TME	4	binary	Time since midnight, in hundredths of a second, that the record was moved into the SMF buffer.
10	0A	SMF99S7_ 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	SMF99S7_ SID	4	EBCDIC	System identification (from the SID parameter).
18	12	SMF99S7_ SSID	4	EBCDIC	Sub system identification
22	16	SMF99S7_ TID	2	binary	Record subtype (must be at offset X'16' x).
24	18	SMF99S7_ SDEF_ LEN	4	binary	Length of the self definition section.
Self-Defining Section(Offset from beginning of record: 28)
0	0	SMF99S7_ POF	4	binary	Offset to the product section from the beginning of the record (including RDW).
4	4	SMF99S7_ PLN	2	binary	Length of the product section.
6	6	SMF99S7_ PON	2	binary	Number of the product section.
8	8	SMF99S7_ DOF	4	binary	Offset to data section from beginning of the record (including RDW).
12	C	SMF99S7_ DLN	2	binary	Length of the data section.
14	E	SMF99S7_ DON	2	binary	Number of the data section.
SMF 99 Product Information(Offset from beginning of record: SMF99S7_POF)
0	0	SMF99S7_ VN2	2	binary	Record sub-version. Use to identify changes to the record in the service stream.
2	2	SMF99S7_ RVN	2	binary	Record version number.
4	4	SMF99S7_ PNM	8	EBCDIC	Product name - SRM
12	C	SMF99S7_ SLV	8	EBCDIC	System level from which record was cut (Copied from CVTPRODN).
20	14	SMF99S7_ SNM	8	EBCDIC	System name from which record was cut (Copied from CVTSNAME)
28	1C	SMF99S7_ 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 7 - Self Defining Section(Offset from beginning of record: SMF99S7_DOF)
0	0	SMF997_ PAV_ SUBSYS_ ID	32	EBCDIC	PAV subsystem ID, (NED TOKEN)
32	20	SMF997_ NUM_ EXT_ SC	4	binary	Number of external service classes. This is needed to determine the index to the SYSTEM service class in the device service class bitmap. The device service class bitmap is in the device data section. The number of external service classes is put in the self-defining section to avoid repeating it for each device.
36	24	SMF997_ PAV_ DATA_ DEV_ OF	4	binary	Offset to the first device section, from beginning of record (including RDW).
40	28	SMF997_ PAV_ DATA_ DEV_ LEN	2	binary	Length of each device section.
38	26	SMF997_ PAV_ DATA_ DEV_ NO	2	binary	Number of device sections.
Subtype 7 - PAV Device Section(Offset from beginning of record: SMF997_PAV_DATA_DEV_OF)
0	0	SMF997_ PAV_ DEV_ ID	2	binary	Device ID.
2	2	SMF997_ PAV_ DEV_ FLAGS	1	binary	Goal type: Bit Meaning When Set 0 PAV device is an unbound alias 1 PAV device managed by WLM 2 PAV device temporarily unavailable 3–7 Reserved
3	3	SMF997_ PAV_ DEV_ NUM_ OF_ ALIASES	1	binary	Number of aliases assigned. Valid for PAV base device.
4	4	SMF997_ PAV_ DEV_ AVG_ IOS_ QUEUE_ LEN	4	binary	Average IOS queue length. Valid for PAV base device.
8	8	SMF997_ PAV_ DEV_ AVG_ SERVICE_ TIME	4	binary	Average service time. Valid for PAV base device in 128 micro seconds.
12	C	SMF997_ PAV_ DEV_ IODELAY_ TIME	4	binary	I/O Delay Time. Currently CU queue time.
16	10	SMF997_ PAV_ DEV_ IODELAY_ SAMPS	2	binary	I/O Delay samples
18	12	SMF997_ PAV_ DEV_ IOSQSAMPLES	2	binary	IOS Queue samples
20	14	--	4	binary	Reserved
24	18	SMF997_ PAV_ DEV_ DEVSC_ MAP_ OLD	14	binary	Device service class ID bit string for 108 service classes prior to z/OS V1R10
38	26	--	2	binary	Reserved
40	28	SMF997_ PAV_ DEV_ UTILIZATION	4	binary	Utilization
44	2C	SMF997_ PAV_ DEV_ PENDTIME	4	binary	Pend time
48	30	SMF997_ PAV_ DEV_ DISCTIME	4	binary	Disconnect time
52	34	SMF997_ PAV_ DEV_ SSC	4	binary	Start subchannel count
56	38	SMF997_ PAV_ DEV_ MINACNT	1	binary	Local min alias count
57	39	SMF997_ PAV_ DEV_ GMINACNT	1	binary	Global min alias count
58	3A	--	2	binary	reserved
60	3C	SMF997_ PAV_ DEV_ RSRVD2	8	binary	Reserved
68	44	--	4	binary	Reserved
72	48	SMF997_ PAV_ DEV_ DEVSC_ MAP	46	binary	Device service class ID bit string

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 7) - 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).