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SMF Type 99 Record - Subtype 3

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)
NameLengthFormatDescription
00SMF99S3_
LEN
2binary
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.
22SMF99S3_
SEG
2binary
Segment descriptor (see record length field).
44SMF99S3_
FLG
1binary
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.
55SMF99S3_
RTY
1binary
Record type 99
66SMF99S3_
TME
4binary
Time since midnight, in hundredths of a second, that the record was moved into the SMF buffer.
100ASMF99S3_
DTE
4packed
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.
140ESMF99S3_
SID
4EBCDIC
System identification (from the SID parameter).
1812SMF99S3_
SSID
4EBCDIC
Sub system identification
2216SMF99S3_
TID
2binary
Record subtype (must be at offset X'16' x).
2418SMF99S3_
SDEF_
LEN
4binary
Length of the self definition section.
Self-Defining Section
(Offset from beginning of record: 28)
00SMF99S3_
POF
4binary
Offset to the product section from the beginning of the record (including RDW).
44SMF99S3_
PLN
2binary
Length of the product section.
66SMF99S3_
PON
2binary
Number of the product section.
88SMF99S3_
DOF
4binary
Offset to data section from beginning of the record (including RDW).
12CSMF99S3_
DLN
2binary
Length of the data section.
14ESMF99S3_
DON
2binary
Number of the data section.
SMF 99 Product Information
(Offset from beginning of record: SMF99S3_POF)
00SMF99S3_
VN2
2binary
Record sub-version. Use to identify changes to the record in the service stream.
22SMF99S3_
RVN
2binary
Record version number.
44SMF99S3_
PNM
8EBCDIC
Product name - SRM
12CSMF99S3_
SLV
8EBCDIC
System level from which record was cut (Copied from CVTPRODN).
2014SMF99S3_
SNM
8EBCDIC
System name from which record was cut (Copied from CVTSNAME)
281CSMF99S3_
PFLG
1binary
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.
291D--3EBCDIC
Reserved.
Subtype 3 Self Defining Section
(Offset from beginning of record: SMF99S3_DOF)
00SMF993COF4binary
Offset to class information from the beginning of record (including RDW).
44SMF993CLN2binary
Length of the class information.
66SMF993CON2binary
Number of class information.
88SMF993CPOF4binary
Offset to class period section from beginning of record (including RDW).
12CSMF993CPLN2binary
Length of the class period section.
14ESMF993CPON2binary
Number of period sections.
Subtype 3 Class Data Section
(Offset from beginning of record: SMF993COF)
00SMF99_
PNAM
8EBCDIC
Service class name
Subtype 3 Period Self-Defining Section
(Offset from beginning of record: SMF993CPOF)
00SMF993_
PRPOF
4binary
Offset to paging rate plot for this period from the beginning of the record (including RDW).
44SMF993_
PRPLN
2binary
Length of paging rate plot.
66SMF993_
PRPON
2binary
Number of paging rate plots.
88SMF993_
MPLOF
4binary
Offset to MPL delay plots for this period from the beginning of the record (including RDW).
12CSMF993_
MPLLN
2binary
Length of MPL delay plots.
14ESMF993_
MPLON
2binary
Number of MPL delay plots.
1610SMF993_
RUAOF
4binary
Offset to ready user average plots for this period from the beginning of the record (including RDW).
2014SMF993_
RUALN
2binary
Length of ready user average plot.
2216SMF993_
RUAON
2binary
Number of ready user average plots.
2418SMF993_
SWPOF
4binary
Offset to swap delay plots for this period from the beginning of the record (including RDW).
281CSMF993_
SWPLN
2binary
Length of swap delay plot.
301ESMF993_
SWPON
2binary
Number of swap delay plots.
3220SMF993_
PASOF
4binary
Offset to proportional aggregate speed plots for this period from the beginning of the record (including RDW).
3624SMF993_
PASLN
2binary
Length of proportional aggregate speed plots.
3826SMF993_
PASON
2binary
Number of proportional aggregate speed plots.
4028SMF993_
QMPLOF
4binary
Offset to the queue delay plots for this period from the beginning of the record (including RDW)
442CSMF993_
QMPLLN
2binary
Length of the queue delay plot.
462ESMF993_
QMPLON
2binary
Number of queue delay plots.
4830SMF993_
QRUAOF
4binary
Offset to the queue ready user average for this period from the beginning of the record (including RDW).
5234SMF993_
QRUALN
2binary
Length of the queue ready user average plot.
5436SMF993_
QRUAON
2binary
Number of queue ready user average plot.
5638SMF993_
INTERNAL_
CLASS_
NAME
8EBCDIC
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 .
6440SMF993_
QSTPOF
4binary
Offset to queue service time for this period from beginning of record (including RDW).
6844SMF993_
QSTPLN
2binary
Length of queue service time plot.
7046SMF993_
QSTPON
2binary
Number of queue service time plots.
7248SMF993_
AINSOF
4binary
Offset to active server instance plot for this period from beginning of record (including RDW)
764CSMF993_
AINSLN
2binary
Length of active server instance plot
784ESMF993_
AINSON
2binary
Number of active server instance plot
8050SMF993_
ASTROF
4binary
Offset to virtual storage plot for active server instances for this period from beginning of record (including RDW)
8454SMF993_
ASTRLN
2binary
Length of virtual storage plot
8656SMF993_
ASTRON
2binary
Number of virtual storage plot
8858SMF993_
TSTROF
4binary
Offset to virtual storage plot for total server instances for this period from beginning of record (including RDW)
925CSMF993_
TSTRLN
2binary
Length of virtual storage plot
945ESMF993_
TSTRON
2binary
Number of virtual storage plot
Subtype 3 Period Paging Rate Plot Section
(Offset from beginning of record: SMF993_PRPOF)
00SMF99_
PPRP_
PNUM
4binary
Period number.
44SMF99_
PPRP_
BW
4binary
Size of each x bucket width. X is the average address space size in frames.
88SMF99_
PPRP_
LSTX
4binary
Last plotted x bucket index. * 4 binary Reserved.
1610SMF99_
PPRP_
POINTS_
OF
4binary
Offset of point entries.
2014SMF99_
PPRP_
POINTS_
ON
2binary
Number of point entries.
2216SMF99_
PPRP_
POINTS_
LN
2binary
Length of a point entry.
Subtype 3 MPL Delay Plot Section
(Offset from beginning of record: SMF993_MPLOF)
00SMF99_
MPLP_
PNUM
4binary
Period number
44SMF99_
MPLP_
BW
4binary
Size of each x bucket width. X is the percentage of ready users who have an MPL slot available to them.
88SMF99_
MPLP_
LSTX
4binary
Last plotted x bucket index. * 4 binary Reserved.
1610SMF99_
MPLP_
POINTS_
OF
4binary
Offset of point entries.
2014SMF99_
MPLP_
POINTS_
ON
2binary
Number of point entries.
2216SMF99_
MPLP_
POINTS_
LN
2binary
Length of a point entry.
Subtype 3 Ready User Average Plot Section
(Offset from beginning of record: SMF993_RUAOF)
00SMF99_
RUAP_
PNUM
4binary
Period number.
44SMF99_
RUAP_
BW
4binary
Size of each x bucket width. X is the number of MPL slots available to the service class period scaled by 16.
88SMF99_
RUAP_
LSTX
4binary
Last plotted x bucket index. * 4 binary Reserved.
1610SMF99_
RUAP_
POINTS_
OF
4binary
Offset of point entries.
2014SMF99_
RUAP_
POINTS_
ON
2binary
Number of point entries.
2216SMF99_
RUAP_
POINTS_
LN
2binary
Length of a point entry.
Subtype 3 Swap Delay Plot Section
(Offset from beginning of record: SMF993_SWPOF)
00SMF99_
SWPP_
PNUM
4binary
Period number.
44SMF99_
SWPP_
BW
4binary
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.
88SMF99_
SWPP_
LSTX
4binary
Last plotted x bucket index. * 4 binary Reserved.
1610SMF99_
SWPP_
POINTS_
OF
4binary
Offset of point entries.
2014SMF99_
SWPP_
POINTS_
ON
2binary
Number of point entries.
2216SMF99_
SWPP_
POINTS_
LN
2binary
Length of a point entry.
Subtype 3 Proportional Aggregate Speed Plot Section
(Offset from beginning of record: SMF993_PASOF)
00SMF99_
PASP_
PNUM
4binary
Period number.
44SMF99_
PASP_
BW
4binary
Size of each x bucket width. X is the proportional aggregate speed of a service class. Units are the same as for velocity.
88SMF99_
PASP_
LSTX
4binary
Last plotted x bucket index. * 4 binary Reserved.
1610SMF99_
PASP_
POINTS_
OF
4binary
Offset of point entries.
2014SMF99_
PASP_
POINTS_
ON
2binary
Number of point entries.
2216SMF99_
PASP_
POINTS_
LN
2binary
Length of a point entry.
Subtype 3 Queue Delay Plot Section
(Offset from beginning of record: SMF993_QMPLOF)
00SMF99_
QMPLP_
PNUM
4binary
Period number.
44SMF99_
QMPLP_
DISP_
CLASS_
NAME
8EBCDIC
Service class name of the server where the server address spaces are running.
12CSMF99_
QMPLP_
BW
4binary
Size of each x bucket width. X is the address space size in frames.
1610SMF99_
QMPLP_
LSTX
4binary
Last plotted x bucket index. * 4 binary Reserved.
2418SMF99_
QMPLP_
POINTS_
OF
4binary
Offset of point entries.
281CSMF99_
QMPLP_
POINTS_
ON
2binary
Number of point entries.
301ESMF99_
QMPLP_
POINTS_
LN
2binary
Length of a point entry.
3220SMF99_
QMPLP_
Q_
TYPE
1binary
Work queue type: Bit Meaning When Set 0 Queue manager type work queue. 1 Batch type work queue. 2-7 Reserved.
3321--3EBCDIC
Reserved.
3624SMF99_
QMPLP_
SUBSYS_
TYPE
4EBCDIC
Subsystem type of the owner of the queue. (Applies only to batch queue servers.)
4028SMF99_
QMPLP_
SUBSYS_
NAME
8EBCDIC
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)
00SMF99_
QRUAP_
PNUM
4binary
Period number.
44SMF99_
QRUAP_
DISP_
CLASS_
NAME
8EBCDIC
Class name of server service class where the server address spaces are running.
12CSMF99_
QRUAP_
BW
4binary
Size of each x bucket width. X is the address space size in frames.
1610SMF99_
QRUAP_
LSTX
4binary
Last plotted x bucket index. * 4 binary Reserved.
2418SMF99_
QRUAP_
POINTS_
OF
4binary
Offset of point entries.
281CSMF99_
QRUAP_
POINTS_
ON
2binary
Number of point entries.
301ESMF99_
QRUAP_
POINTS_
LN
2binary
Length of a point entry.
Subtype 3 Active Server Instances Plot Section
(Offset from beginning of record: SMF993_AINSOF)
00SMF99_
AINS_
PNUM
4binary
Period number
44SMF99_
AINS_
BW
4binary
Bucket width
88SMF99_
AINS_
LSTX
4binary
Last plotted X bucket * 4 binary Reserved
1610SMF99_
AINS_
POINTS_
OF
4binary
Offset of point entries
2014SMF99_
AINS_
POINTS_
ON
2binary
Number of point entries
2216SMF99_
AINS_
POINTS_
LN
2binary
Length of a point entry
Subtype 3 VS Plot for Active Server Instances Section
(Offset from beginning of record: SMF993_ASTROF)
00SMF99_
ASTR_
PNUM
4binary
Period number
44SMF99_
ASTR_
BW
4binary
Bucket width
88SMF99_
ASTR_
LSTX
4binary
Last plotted X bucket * 4 binary Reserved
1610SMF99_
ASTR_
POINTS_
OF
4binary
Offset of point entries
1812SMF99_
ASTR_
POINTS_
ON
2binary
Number of point entries
2014SMF99_
ASTR_
POINTS_
LN
2binary
Length of a point entry
2216SMF99_
ASTR_
C_
USED
1binary
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 *
2317--3EBCDIC
Reserved
Subtype 3 VS Plot for Total Server Instances Section
(Offset from beginning of record: SMF993_TSTROF)
00SMF99_
TSTR_
PNUM
4binary
Period number
44SMF99_
TSTR_
BW
4binary
Bucket width
88SMF99_
TSTR_
LSTX
4binary
Last plotted X bucket * 4 binary Reserved
1610SMF99_
TSTR_
POINTS_
OF
4binary
Offset of point entries
1812SMF99_
TSTR_
POINTS_
ON
2binary
Number of point entries
2014SMF99_
TSTR_
POINTS_
LN
2binary
Length of a point entry
2216SMF99_
TSTR_
C_
USED
1binary
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
2317--3EBCDIC
Reserved
Subtype 3 Queue Service Time Plot Section
(Offset from beginning of record: SMF993_QSTPOF)
00SMF99_
QSTP_
PNUM
4binary
Period number.
44SMF99_
QSTP_
DISP_
CLASS_
NAME
8EBCDIC
Class name where the server address spaces are running.
12CSMF99_
QSTP_
BW
4binary
Bucket width.
1610SMF99_
QSTP_
LSTX
4binary
Last plotted x bucket index. * 4 binary Reserved.
2418SMF99_
QSTP_
POINTS_
OF
4binary
Offset of point entries.
281CSMF99_
QSTP_
POINTS_
ON
2binary
Number of point entries.
301ESMF99_
QSTP_
POINTS_
LN
2binary
Length of a point entry.
Subtype 3 Plot With Two Curves - Point Entry Section
(Offset from beginning of record: SMF99_QSTP_POINTS_OF)
00SMF99_
2PLOT_
XVAL
4binary
X value of point plotted in a bucket
44SMF99_
2PLOT_
Y1VAL
4binary
Y value of point plotted on first curve
88SMF99_
2PLOT_
Y2VAL
4binary
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.

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Pacific Systems Group.
All rights reserved.


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