








	*SMF Tools*

SMF Type 99 Record (Subtype 12) - 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	SMF99S12_ 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	SMF99S12_ SEG	2	binary	Segment descriptor (see record length field).
4	4	SMF99S12_ 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	SMF99S12_ RTY	1	binary	Record type 99
6	6	SMF99S12_ TME	4	binary	Time since midnight, in hundredths of a second, that the record was moved into the SMF buffer.
10	0A	SMF99S12_ 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	SMF99S12_ SID	4	EBCDIC	System identification (from the SID parameter).
18	12	SMF99S12_ SSID	4	EBCDIC	Sub system identification
22	16	SMF99S12_ TID	2	binary	Record subtype (must be at offset X'16' x).
24	18	SMF99S12_ SDEF_ LEN	4	binary	Length of the self definition section.
Self-Defining Section(Offset from beginning of record: 28)
0	0	SMF99S12_ POF	4	binary	Offset to the product section from the beginning of the record (including RDW).
4	4	SMF99S12_ PLN	2	binary	Length of the product section.
6	6	SMF99S12_ PON	2	binary	Number of the product section.
8	8	SMF99S12_ DOF	4	binary	Offset to data section from beginning of the record (including RDW).
12	C	SMF99S12_ DLN	2	binary	Length of the data section.
14	E	SMF99S12_ DON	2	binary	Number of the data section.
SMF 99 Product Information(Offset from beginning of record: SMF99S12_POF)
0	0	SMF99S12_ VN2	2	binary	Record sub-version. Use to identify changes to the record in the service stream.
2	2	SMF99S12_ RVN	2	binary	Record version number.
4	4	SMF99S12_ PNM	8	EBCDIC	Product name - SRM
12	C	SMF99S12_ SLV	8	EBCDIC	System level from which record was cut (Copied from CVTPRODN).
20	14	SMF99S12_ SNM	8	EBCDIC	System name from which record was cut (Copied from CVTSNAME)
28	1C	SMF99S12_ 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 12 - Self Defining Section(Offset from beginning of record: SMF99S12_DOF)
0	0	SMF9912_ HD_ Int_ Hdr_ OFFSET	4	binary	Offset to header data section
4	4	SMF9912_ HD_ Int_ Hdr_ LENGTH	2	binary	Length of header data section
6	6	SMF9912_ HD_ Int_ Hdr_ NUMBER	2	binary	Number of header data sections
8	8	SMF9912_ HD_ Int_ Cap_ OFFSET	4	binary	Offset to capacity data section
12	C	SMF9912_ HD_ Int_ Cap_ LENGTH	2	binary	Length of capacity data section
14	E	SMF9912_ HD_ Int_ Cap_ NUMBER	2	binary	Number of capacity data sections
16	10	SMF9912_ HD_ Int_ Proc_ OFFSET	4	binary	Offset to processor data section
20	14	SMF9912_ HD_ Int_ Proc_ LENGTH	2	binary	Length of processor data section
22	16	SMF9912_ HD_ Int_ Proc_ NUMBER	2	binary	Number of processor data sections
Subtype 12 - Header data section(Offset from beginning of record: SMF9912_HD_Int_Hdr_OFFSET)
0	0	SMF99C_ VCM_ SMF_ Sequ	4	binary	HiperDispatch SMF sequence number
4	4	SMF99C_ VCM_ ErrorCode	2	binary	HiperDispatch Error Code
6	6	--	1	binary	Reserved
7	7	SMF99C_ VCM_ Diag204_ Flags	1	binary	Flags Bit Meaning When Set 0 LPAR capped by WLM 1 LPAR capped by customer
8	8	SMF99C_ VCM_ Interval_ Len	4	binary	Measured interval length in microseconds
12	C	SMF99C_ VCM_ LparPhysProcShr	4	binary	LPAR physical processor share for general CPs scaled by 256
16	10	SMF99C_ VCM_ Interval_ TOD	8	binary	TOD when HiperDispatch code got control. In STCK format
24	18	SMF99C_ VCM_ Flags	4	binary	HiperDispatch (HD) status flags
24	18	SMF99C_ VCM_ Flag1	1	binary	1st flag byte Bit Meaning When Set 0 topology has changed 1 rebuild affinity nodes 2 honor priority has changed 3 dispatcher WUQ error 4 processor speed change 5-7 reserved
25	19	SMF99C_ VCM_ Flag2	1	binary	2nd flag byte Bit Meaning When Set 0 CEC capacities are valid 1 LPAR capacities are valid 2 Old VCM state 3 reserved 4 dispatcher affinity was updated 5 PTF was issued to initiate a switch into the opposite mode. However, the PTF return info tells us that we are already in the requested mode 6 VCM is transitioning to/from vertical 7 reserved
26	1A	SMF99C_ VCM_ Flag3	1	binary	3rd flag byte Bit Meaning When Set 0 topology facility installed 1 IFA facility installed 2 LPAR has only dedicated CPs 3 Cross memory set 4 new container TLE 5 CPU type has changed 6 Write TopoChg section 7 reserved
27	1B	SMF99C_ VCM_ Flag4	1	binary	4th flag byte Bit Meaning When Set 0 IFA honor priority state of previous interval 1 SUP honor priority state of previous interval 2-7 reserved
28	1C	--	4	binary	Reserved
32	20	SMF99C_ VCM_ DiagMPWQ	16	structure	1st data element of diagnostic MPWQ data array 48 30 16 structure 2nd data element of diagnostic MPWQ data array
64	40	SMF99C_ VCM_ DiagECPX	16	structure	1st data element of diagnostic ECPX data array 80 50 16 structure 2nd data element of diagnostic
64	40	SMF99C_ VCM_ LparCapAlloc	4	binary	Allocated LPAR capacity in microseconds. The allocated capacity is provided by the guaranteed capacity on VHs and VMs, plus extra capacity on VMs and unparked VLs
68	44	SMF99C_ VCM_ LparCapNonGuaran	4	binary	Non guaranteed LPAR capacity in microseconds.
72	48	SMF99C_ VCM_ LparCapMedGuaran	4	binary	Guaranteed LPAR capacity on VMs in microseconds.
76	4C	SMF99C_ VCM_ LparCapGuaran	4	binary	Guaranteed LPAR capacity in microseconds. This value is calculated from the physical processor share of this LPAR
80	50	SMF99C_ VCM_ MvsBusyProjected	4	binary	Projected MvsBusy, scaled by 16
84	54	SMF99C_ VCM_ LparUnusedCapShare	4	binary	Unused capacity share of this LPAR in microseconds
88	58	SMF99C_ VCM_ LparUnusedCap	4	binary	Unused LPAR capacity in microseconds including the unused capacity share for this LPAR
92	5C	--	4	binary	Reserved
96	60	SMF99C_ VCM_ Diag204_ LogInfo	16	binary	LPAR information
96	60	SMF99C_ VCM_ D204_ TotalW	4	binary	Total LPAR weight
100	64	SMF99C_ VCM_ D204_ CurrentW	4	binary	Current LPAR weight
104	68	SMF99C_ VCM_ D204_ WrkCurrW	4	binary	Accumulated current LPAR weight
108	6C	SMF99C_ VCM_ D204_ LCpus	2	binary	Number of logical CPs for this LPAR
110	6E	--	2	binary	Reserved
112	70	SMF99C_ VCM_ CpuHi	1	binary	Number of VHs
113	71	SMF99C_ VCM_ CpuMed	1	binary	Number of VMs
114	72	SMF99C_ VCM_ CpuLo	1	binary	Number of VLs
115	73	SMF99C_ VCM_ CpuLoUnparked	1	binary	Number of unparked VLs
116	74	SMF99C_ VCM_ CpuLoParked	1	binary	Number of parked VLs 117 75 * 1 1 HEX Reserved
128	80	SMF99C_ VCM_ DiagCapAdj	16	binary	Diagnose information capacity adjustment
128	80	SMF99C_ VCM_ DiagCapFlags	4	binary	Capacity change flags
128	80	SMF99C_ VCM_ DiagCapIncr	2	binary	Capacity increase flags: Bit Meaning When Set 0 Adjust capacity increase 1 Adjust capacity increase by unparking a processor 2 Unpark request 3 Unpark all request 4 Reserved 5 Unpark requested because the LPAR capacity is below the guaranteed capacity + unused capacity share 6-15 Reserved
130	82	SMF99C_ VCM_ DiagCapDecr	2	binary	Capacity decrease flags: Bit Meaning When Set 0 Adjust capacity decrease 1 Adjust capacity decrease by parking a processor 2 Park requested 3 Park all request 4 MvsBusy too low 5 VL effect too low 6 Small VM/VL effectiveness 7 no VM/VL effectiveness 8 If no VHEXists 9-15 Reserved 132 84 * 12 HEX Reserved
144	90	SMF99C_ VCM_ CecCapTotal	4	binary	Total CEC capacity in microseconds
148	94	SMF99C_ VCM_ CecCapUsedAdj	4	binary	CEC capacity used in microseconds, adjusted to the scheduled VCM interval length
152	98	SMF99C_ VCM_ CecCapUsed	4	binary	CEC capacity used in microseconds
156	9C	SMF99C_ VCM_ CecCapFree	4	binary	Free CEC capacity in microseconds, adjusted to the scheduled VCM interval length 160 A0 * 2 HEX Reserved
162	A2	SMF99C_ VCM_ CecSharedCps	2	binary	Number of shared CPs
164	A4	SMF99C_ VCM_ CecCapFreeLimit	2	binary	CEC free limit for unparking, scaled by 256
166	A6	SMF99C_ VCM_ CecUtil	2	binary	Total CEC utilization, scaled by 256
168	A8	SMF99C_ VCM_ CecTotUnusedCap	4	binary	Total unused capacity of all LPARs in CEC in microseconds. The unused capacity of the requesting LPAR is not included
172	AC	SMF99C_ VCM_ CecTotLparWgtAboveGuaran	2	binary	Total weight of all LPARs with a processor demand above guaranteed capacity. The weight of the requesting LPAR is always included 174 AE * 2 HEX Reserved
176	B0	SMF99C_ VCM_ CecPhysMgmTime	4	binary	Physical LPAR management time of all CPUs in microseconds
180	B4	SMF99C_ VCM_ CecPhysMgmTimeAdj	4	binary	Physical LPAR management time of all CPUs, adjusted to the scheduled VCM interval length
184	B8	--	8	binary	Reserved Offset Name Length Format Description
Subtype 12 - Capacity data(Offset from beginning of record: SMF9912_HD_Int_Cap_OFFSET)
0	0	SMF99C_ HD_ Int_ Proc_ Idx	2	binary	HiperDispatch interval processor index
2	2	SMF99C_ LCCADSF2	1	binary	Processor flag 1 Bit Meaning When Set 0 Reserved 1 Processor parked 2-7 Reserved
3	3	SMF99C_ LCCASCFL	1	binary	Processor flag 2 Bit Meaning When Set 0-6 Reserved 7 Processor park request pending 4 4 * 12 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 12) - 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).