








	*SMF Tools*

SMF Type 99 Record - Subtype 5

This table shows the record layout for type 99 SMF records
(System Resource Manager (SRM) Decisions).

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.

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SMF Type 99 Record -- System Resource Manager (SRM) Decisions
Offset (Dec.)	Offset (Hex)	Name	Length	Format	Description
0	0	SMF99S5_ 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	SMF99S5_ SEG	2	binary	Segment descriptor (see record length field).
4	4	SMF99S5_ 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	SMF99S5_ RTY	1	binary	Record type 99
6	6	SMF99S5_ TME	4	binary	Time since midnight, in hundredths of a second, that the record was moved into the SMF buffer.
10	0A	SMF99S5_ 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	SMF99S5_ SID	4	EBCDIC	System identification (from the SID parameter).
18	12	SMF99S5_ SSID	4	EBCDIC	Sub system identification
22	16	SMF99S5_ TID	2	binary	Record subtype (must be at offset X'16' x).
24	18	SMF99S5_ SDEF_ LEN	4	binary	Length of the self definition section.
Self-Defining Section(Offset from beginning of record: 28)
0	0	SMF99S5_ POF	4	binary	Offset to the product section from the beginning of the record (including RDW).
4	4	SMF99S5_ PLN	2	binary	Length of the product section.
6	6	SMF99S5_ PON	2	binary	Number of the product section.
8	8	SMF99S5_ DOF	4	binary	Offset to data section from beginning of the record (including RDW).
12	C	SMF99S5_ DLN	2	binary	Length of the data section.
14	E	SMF99S5_ DON	2	binary	Number of the data section.
SMF 99 Product Information(Offset from beginning of record: SMF99S5_POF)
0	0	SMF99S5_ VN2	2	binary	Record sub-version. Use to identify changes to the record in the service stream.
2	2	SMF99S5_ RVN	2	binary	Record version number.
4	4	SMF99S5_ PNM	8	EBCDIC	Product name - SRM
12	C	SMF99S5_ SLV	8	EBCDIC	System level from which record was cut (Copied from CVTPRODN).
20	14	SMF99S5_ SNM	8	EBCDIC	System name from which record was cut (Copied from CVTSNAME)
28	1C	SMF99S5_ 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 5 - Self Defining Section(Offset from beginning of record: SMF99S5_DOF)
0	0	SMF99ANAM	8	EBCDIC	Address space name
8	8	SMF99ACNM	8	EBCDIC	Service class to which the address space belongs.
16	10	SMF99APNUM	4	binary	Period number that the address space is in.
20	14	SMF99APCS	4	binary	Protective central storage target, in frames.
24	18	SMF99ARCS	4	binary	Restrictive central storage target, in frames.
28	1C	SMF99APPS	4	binary	Protective processor storage target, in frames.
32	20	SMF99ARPS	4	binary	Restrictive processor storage target, in frames.
36	24	SMF99CPLT	20	EBCDIC	Central storage plot. Mapped by SMF99_S5_CPLT_MAP.
56	38	SMF99PPLT	20	EBCDIC	Processor storage plot. Mapped by SMF99_S5_PPLT_MAP.
76	4C	SMF99ASID	2	binary	Address space ID.
78	4E	SMF99A_ EXTERNAL_ CLASS_ NAME	8	EBCDIC	The name of the external class with which the address space is associated.
86	56	SMF99_ S5_ FLAGS	1	binary	Flags. Bit Meaning When Set 0 Storage is protected at this instant. 1 Storage protection assigned to space by classification rule. 2 Indicates that storage critical housekeeping was the last to set the storage target for central storage. 3 Indicates that storage critical housekeeping was the last to set the storage target for processor storage. 4 Indicates that policy adjustment was the last to set the storage target for central storage. 5 Indicates that policy adjustment was the last to set the storage target for processor storage. 6-7 Reserved
87	57	--	3	EBCDIC	Reserved.
Subtype 5 - Processor Storage Plot Section Map(Offset from beginning of record: SMF99S5_DOF + 36)
0	0	SMF99_ PPLT_ BW	4	binary	Size of each x bucket width. X is the address space size in frames.
4	4	SMF99_ PPLT_ LSTX	4	binary	Last plotted x bucket index. * 4 binary Reserved.
12	C	SMF99_ PPLT_ POINTS_ OF	4	binary	Offset of point entries.
16	10	SMF99_ PPLT_ POINTS_ ON	2	binary	Number of point entries.
18	12	SMF99_ PPLT_ POINTS_ LN	2	binary	Length of a point entry.
Subtype 5 - Central Storage Plot Section Map(Offset from beginning of record: SMF99S5_DOF + 56)
0	0	SMF99_ CPLT_ BW	4	binary	Size of each x bucket width. X is the address space size in frames.
4	4	SMF99_ CPLT_ LSTX	4	binary	Last plotted x bucket index. * 4 binary Reserved.
12	C	SMF99_ CPLT_ POINTS_ OF	4	binary	Offset of point entries.
Subtype 5 - Plot with One Curve - Point Entry Section(Offset from beginning of record: SMF99_PPLT_POINTS_OF)
0	0	SMF99_ PLOT_ XVAL	4	binary	X value of point plotted in a bucket.
4	4	SMF99_ PLOT_ YVAL	4	binary	Y value of point plotted in a bucket.
Subtype 5 - Plot with Three Curves - Point Entry Section(Offset from beginning of record: SMF99_CPLT_POINTS_OF)
0	0	SMF99_ 3PLOT_ XVAL	4	binary	X value of point plotted in a bucket.
4	4	SMF99_ 3PLOT_ Y1VAL	4	binary	Y value of point plotted on first curve. For the processor storage plot, the first curve is the page-in rate per captured (TCB+SRB) second from auxiliary storage. For the central storage plot, the first curve is the page-in rate per captured (TCB+SRB) second from auxiliary and expanded storage.
8	8	SMF99_ 3PLOT_ Y2VAL	4	binary	Y value of point plotted on second curve. For the processor storage plot, the second curve is the paging cost in milliseconds per elapsed second for paging from auxiliary storage. For the central storage plot, the second curve is the paging cost in milliseconds per elapsed second for paging from auxiliary and expanded storage.
12	C	SMF99_ 3PLOT_ Y3VAL	4	binary	Y value of point plotted on third curve. For the processor storage plot, the third curve is the captured time in milliseconds per elapsed second. For the central storage plot, the third curve is the captured time in milliseconds per elapsed second.

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 5

This table shows the record layout for type 99 SMF records (System Resource Manager (SRM) Decisions).

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).