








	*SMF Tools*

SMF Type 99 Record (Subtype 3) - 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.

It's easy to report on SMF 99 data!

We have a low-cost 4GL report writer especially for SMF files. It's called Spectrum SMF Writer.

Spectrum SMF Writer handles the difficult SMF record parsing for you automatically. You just specify which fields you want to see.

Spectrum SMF Writer also converts the arcane date and time fields and reformats them into an attractive report.

Plus, Spectrum SMF Writer can export SMF data as comma delimited files to use on your PC.

SMF Type 99 Record -- System Resource Manager (SRM) Decisions - z/OS 1.13
Offset (Dec.)	Offset (Hex)	Name	Length	Format	Description
0	0	SMF99S3_ 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	SMF99S3_ SEG	2	binary	Segment descriptor (see record length field).
4	4	SMF99S3_ 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	SMF99S3_ RTY	1	binary	Record type 99
6	6	SMF99S3_ TME	4	binary	Time since midnight, in hundredths of a second, that the record was moved into the SMF buffer.
10	0A	SMF99S3_ 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	SMF99S3_ SID	4	EBCDIC	System identification (from the SID parameter).
18	12	SMF99S3_ SSID	4	EBCDIC	Sub system identification
22	16	SMF99S3_ TID	2	binary	Record subtype (must be at offset X'16' x).
24	18	SMF99S3_ SDEF_ LEN	4	binary	Length of the self definition section.
Self-Defining Section(Offset from beginning of record: 28)
0	0	SMF99S3_ POF	4	binary	Offset to the product section from the beginning of the record (including RDW).
4	4	SMF99S3_ PLN	2	binary	Length of the product section.
6	6	SMF99S3_ PON	2	binary	Number of the product section.
8	8	SMF99S3_ DOF	4	binary	Offset to data section from beginning of the record (including RDW).
12	C	SMF99S3_ DLN	2	binary	Length of the data section.
14	E	SMF99S3_ DON	2	binary	Number of the data section.
SMF 99 Product Information(Offset from beginning of record: SMF99S3_POF)
0	0	SMF99S3_ VN2	2	binary	Record sub-version. Use to identify changes to the record in the service stream.
2	2	SMF99S3_ RVN	2	binary	Record version number.
4	4	SMF99S3_ PNM	8	EBCDIC	Product name - SRM
12	C	SMF99S3_ SLV	8	EBCDIC	System level from which record was cut (Copied from CVTPRODN).
20	14	SMF99S3_ SNM	8	EBCDIC	System name from which record was cut (Copied from CVTSNAME)
28	1C	SMF99S3_ 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 3 Self Defining Section(Offset from beginning of record: SMF99S3_DOF)
0	0	SMF993COF	4	binary	Offset to class information from the beginning of record (including RDW).
4	4	SMF993CLN	2	binary	Length of the class information.
6	6	SMF993CON	2	binary	Number of class information.
8	8	SMF993CPOF	4	binary	Offset to class period section from beginning of record (including RDW).
12	C	SMF993CPLN	2	binary	Length of the class period section.
14	E	SMF993CPON	2	binary	Number of period sections.
Subtype 3 Class Data Section(Offset from beginning of record: SMF993COF)
0	0	SMF99_ PNAM	8	EBCDIC	Service class name
Subtype 3 Period Self-Defining Section(Offset from beginning of record: SMF993CPOF)
0	0	SMF993_ PRPOF	4	binary	Offset to paging rate plot for this period from the beginning of the record (including RDW).
4	4	SMF993_ PRPLN	2	binary	Length of paging rate plot.
6	6	SMF993_ PRPON	2	binary	Number of paging rate plots.
8	8	SMF993_ MPLOF	4	binary	Offset to MPL delay plots for this period from the beginning of the record (including RDW).
12	C	SMF993_ MPLLN	2	binary	Length of MPL delay plots.
14	E	SMF993_ MPLON	2	binary	Number of MPL delay plots.
16	10	SMF993_ RUAOF	4	binary	Offset to ready user average plots for this period from the beginning of the record (including RDW).
20	14	SMF993_ RUALN	2	binary	Length of ready user average plot.
22	16	SMF993_ RUAON	2	binary	Number of ready user average plots.
24	18	SMF993_ SWPOF	4	binary	Offset to swap delay plots for this period from the beginning of the record (including RDW).
28	1C	SMF993_ SWPLN	2	binary	Length of swap delay plot.
30	1E	SMF993_ SWPON	2	binary	Number of swap delay plots.
32	20	SMF993_ PASOF	4	binary	Offset to proportional aggregate speed plots for this period from the beginning of the record (including RDW).
36	24	SMF993_ PASLN	2	binary	Length of proportional aggregate speed plots.
38	26	SMF993_ PASON	2	binary	Number of proportional aggregate speed plots.
40	28	SMF993_ QMPLOF	4	binary	Offset to the queue delay plots for this period from the beginning of the record (including RDW)
44	2C	SMF993_ QMPLLN	2	binary	Length of the queue delay plot.
46	2E	SMF993_ QMPLON	2	binary	Number of queue delay plots.
48	30	SMF993_ QRUAOF	4	binary	Offset to the queue ready user average for this period from the beginning of the record (including RDW).
52	34	SMF993_ QRUALN	2	binary	Length of the queue ready user average plot.
54	36	SMF993_ QRUAON	2	binary	Number of queue ready user average plot.
56	38	SMF993_ INTERNAL_ CLASS_ NAME	8	EBCDIC	Internal class name of the period. For non-discretionary periods, this will be the same as the external class name. For discretionary periods, this will be of the form . For dynamic periods, this will be of the form .
64	40	SMF993_ QSTPOF	4	binary	Offset to queue service time for this period from beginning of record (including RDW).
68	44	SMF993_ QSTPLN	2	binary	Length of queue service time plot.
70	46	SMF993_ QSTPON	2	binary	Number of queue service time plots.
72	48	SMF993_ AINSOF	4	binary	Offset to active server instance plot for this period from beginning of record (including RDW)
76	4C	SMF993_ AINSLN	2	binary	Length of active server instance plot
78	4E	SMF993_ AINSON	2	binary	Number of active server instance plot
80	50	SMF993_ ASTROF	4	binary	Offset to virtual storage plot for active server instances for this period from beginning of record (including RDW)
84	54	SMF993_ ASTRLN	2	binary	Length of virtual storage plot
86	56	SMF993_ ASTRON	2	binary	Number of virtual storage plot
88	58	SMF993_ TSTROF	4	binary	Offset to virtual storage plot for total server instances for this period from beginning of record (including RDW)
92	5C	SMF993_ TSTRLN	2	binary	Length of virtual storage plot
94	5E	SMF993_ TSTRON	2	binary	Number of virtual storage plot
Subtype 3 Period Paging Rate Plot Section(Offset from beginning of record: SMF993_PRPOF)
0	0	SMF99_ PPRP_ PNUM	4	binary	Period number.
4	4	SMF99_ PPRP_ BW	4	binary	Size of each x bucket width. X is the average address space size in frames.
8	8	SMF99_ PPRP_ LSTX	4	binary	Last plotted x bucket index. * 4 binary Reserved.
16	10	SMF99_ PPRP_ POINTS_ OF	4	binary	Offset of point entries.
20	14	SMF99_ PPRP_ POINTS_ ON	2	binary	Number of point entries.
22	16	SMF99_ PPRP_ POINTS_ LN	2	binary	Length of a point entry.
Subtype 3 MPL Delay Plot Section(Offset from beginning of record: SMF993_MPLOF)
0	0	SMF99_ MPLP_ PNUM	4	binary	Period number
4	4	SMF99_ MPLP_ BW	4	binary	Size of each x bucket width. X is the percentage of ready users who have an MPL slot available to them.
8	8	SMF99_ MPLP_ LSTX	4	binary	Last plotted x bucket index. * 4 binary Reserved.
16	10	SMF99_ MPLP_ POINTS_ OF	4	binary	Offset of point entries.
20	14	SMF99_ MPLP_ POINTS_ ON	2	binary	Number of point entries.
22	16	SMF99_ MPLP_ POINTS_ LN	2	binary	Length of a point entry.
Subtype 3 Ready User Average Plot Section(Offset from beginning of record: SMF993_RUAOF)
0	0	SMF99_ RUAP_ PNUM	4	binary	Period number.
4	4	SMF99_ RUAP_ BW	4	binary	Size of each x bucket width. X is the number of MPL slots available to the service class period scaled by 16.
8	8	SMF99_ RUAP_ LSTX	4	binary	Last plotted x bucket index. * 4 binary Reserved.
16	10	SMF99_ RUAP_ POINTS_ OF	4	binary	Offset of point entries.
20	14	SMF99_ RUAP_ POINTS_ ON	2	binary	Number of point entries.
22	16	SMF99_ RUAP_ POINTS_ LN	2	binary	Length of a point entry.
Subtype 3 Swap Delay Plot Section(Offset from beginning of record: SMF993_SWPOF)
0	0	SMF99_ SWPP_ PNUM	4	binary	Period number.
4	4	SMF99_ SWPP_ BW	4	binary	Size of each x bucket width. X is the average time an address space in the service class period is logically swapped or swapped on expanded storage in milliseconds.
8	8	SMF99_ SWPP_ LSTX	4	binary	Last plotted x bucket index. * 4 binary Reserved.
16	10	SMF99_ SWPP_ POINTS_ OF	4	binary	Offset of point entries.
20	14	SMF99_ SWPP_ POINTS_ ON	2	binary	Number of point entries.
22	16	SMF99_ SWPP_ POINTS_ LN	2	binary	Length of a point entry.
Subtype 3 Proportional Aggregate Speed Plot Section(Offset from beginning of record: SMF993_PASOF)
0	0	SMF99_ PASP_ PNUM	4	binary	Period number.
4	4	SMF99_ PASP_ BW	4	binary	Size of each x bucket width. X is the proportional aggregate speed of a service class. Units are the same as for velocity.
8	8	SMF99_ PASP_ LSTX	4	binary	Last plotted x bucket index. * 4 binary Reserved.
16	10	SMF99_ PASP_ POINTS_ OF	4	binary	Offset of point entries.
20	14	SMF99_ PASP_ POINTS_ ON	2	binary	Number of point entries.
22	16	SMF99_ PASP_ POINTS_ LN	2	binary	Length of a point entry.
Subtype 3 Queue Delay Plot Section(Offset from beginning of record: SMF993_QMPLOF)
0	0	SMF99_ QMPLP_ PNUM	4	binary	Period number.
4	4	SMF99_ QMPLP_ DISP_ CLASS_ NAME	8	EBCDIC	Service class name of the server where the server address spaces are running.
12	C	SMF99_ QMPLP_ BW	4	binary	Size of each x bucket width. X is the address space size in frames.
16	10	SMF99_ QMPLP_ LSTX	4	binary	Last plotted x bucket index. * 4 binary Reserved.
24	18	SMF99_ QMPLP_ POINTS_ OF	4	binary	Offset of point entries.
28	1C	SMF99_ QMPLP_ POINTS_ ON	2	binary	Number of point entries.
30	1E	SMF99_ QMPLP_ POINTS_ LN	2	binary	Length of a point entry.
32	20	SMF99_ QMPLP_ Q_ TYPE	1	binary	Work queue type: Bit Meaning When Set 0 Queue manager type work queue. 1 Batch type work queue. 2-7 Reserved.
33	21	--	3	EBCDIC	Reserved.
36	24	SMF99_ QMPLP_ SUBSYS_ TYPE	4	EBCDIC	Subsystem type of the owner of the queue. (Applies only to batch queue servers.)
40	28	SMF99_ QMPLP_ SUBSYS_ NAME	8	EBCDIC	Subsystem name of the owner of the queue. (Applies only to batch queue servers.)
Subtype 3 Queue Ready User Average Plot Section(Offset from beginning of record: SMF993_QRUAOF)
0	0	SMF99_ QRUAP_ PNUM	4	binary	Period number.
4	4	SMF99_ QRUAP_ DISP_ CLASS_ NAME	8	EBCDIC	Class name of server service class where the server address spaces are running.
12	C	SMF99_ QRUAP_ BW	4	binary	Size of each x bucket width. X is the address space size in frames.
16	10	SMF99_ QRUAP_ LSTX	4	binary	Last plotted x bucket index. * 4 binary Reserved.
24	18	SMF99_ QRUAP_ POINTS_ OF	4	binary	Offset of point entries.
28	1C	SMF99_ QRUAP_ POINTS_ ON	2	binary	Number of point entries.
30	1E	SMF99_ QRUAP_ POINTS_ LN	2	binary	Length of a point entry.
Subtype 3 Active Server Instances Plot Section(Offset from beginning of record: SMF993_AINSOF)
0	0	SMF99_ AINS_ PNUM	4	binary	Period number
4	4	SMF99_ AINS_ BW	4	binary	Bucket width
8	8	SMF99_ AINS_ LSTX	4	binary	Last plotted X bucket * 4 binary Reserved
16	10	SMF99_ AINS_ POINTS_ OF	4	binary	Offset of point entries
20	14	SMF99_ AINS_ POINTS_ ON	2	binary	Number of point entries
22	16	SMF99_ AINS_ POINTS_ LN	2	binary	Length of a point entry
Subtype 3 VS Plot for Active Server Instances Section(Offset from beginning of record: SMF993_ASTROF)
0	0	SMF99_ ASTR_ PNUM	4	binary	Period number
4	4	SMF99_ ASTR_ BW	4	binary	Bucket width
8	8	SMF99_ ASTR_ LSTX	4	binary	Last plotted X bucket * 4 binary Reserved
16	10	SMF99_ ASTR_ POINTS_ OF	4	binary	Offset of point entries
18	12	SMF99_ ASTR_ POINTS_ ON	2	binary	Number of point entries
20	14	SMF99_ ASTR_ POINTS_ LN	2	binary	Length of a point entry
22	16	SMF99_ ASTR_ C_ USED	1	binary	Plot curve used Bit Meaning When Set 0 VS curve below 16MB was used last time server instances adjusted 1 VS curve above 16MB was used last time server instances adjusted 2-7 Reserved *
23	17	--	3	EBCDIC	Reserved
Subtype 3 VS Plot for Total Server Instances Section(Offset from beginning of record: SMF993_TSTROF)
0	0	SMF99_ TSTR_ PNUM	4	binary	Period number
4	4	SMF99_ TSTR_ BW	4	binary	Bucket width
8	8	SMF99_ TSTR_ LSTX	4	binary	Last plotted X bucket * 4 binary Reserved
16	10	SMF99_ TSTR_ POINTS_ OF	4	binary	Offset of point entries
18	12	SMF99_ TSTR_ POINTS_ ON	2	binary	Number of point entries
20	14	SMF99_ TSTR_ POINTS_ LN	2	binary	Length of a point entry
22	16	SMF99_ TSTR_ C_ USED	1	binary	Plot curve used Bit Meaning When Set 0 VS curve below 16MB was used last time server instances adjusted 1 VS curve above 16MB was used last time server instances adjusted 2-7 Reserved
23	17	--	3	EBCDIC	Reserved
Subtype 3 Queue Service Time Plot Section(Offset from beginning of record: SMF993_QSTPOF)
0	0	SMF99_ QSTP_ PNUM	4	binary	Period number.
4	4	SMF99_ QSTP_ DISP_ CLASS_ NAME	8	EBCDIC	Class name where the server address spaces are running.
12	C	SMF99_ QSTP_ BW	4	binary	Bucket width.
16	10	SMF99_ QSTP_ LSTX	4	binary	Last plotted x bucket index. * 4 binary Reserved.
24	18	SMF99_ QSTP_ POINTS_ OF	4	binary	Offset of point entries.
28	1C	SMF99_ QSTP_ POINTS_ ON	2	binary	Number of point entries.
30	1E	SMF99_ QSTP_ POINTS_ LN	2	binary	Length of a point entry.
Subtype 3 Plot With Two Curves - Point Entry Section(Offset from beginning of record: SMF99_QSTP_POINTS_OF)
0	0	SMF99_ 2PLOT_ XVAL	4	binary	X value of point plotted in a bucket
4	4	SMF99_ 2PLOT_ Y1VAL	4	binary	Y value of point plotted on first curve
8	8	SMF99_ 2PLOT_ Y2VAL	4	binary	Y value of point plotted on second curve

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 3) - 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).