Log and record definitions

The z/OS System (MVS) component collects records from the system management facilities (SMF) log. The z/OS operating system writes records that contain information about configuration, paging activity, and workload. Job-related records include information on the CPU time, SYSOUT activity, and data set activity of each job step, job, APPC/MVS transaction program, and TSO/E session.

The z/OS System (MVS) component processes these records from the SMF log:

SMF record type     Subtype Tivoli Decision Support for z/OS record definition     Description
0   SMF_000 IPL. z/OS writes this record after every IPL of the system and includes the virtual and central (real) storage sizes and some of the SMF options in effect.
6   SMF_006 JES output writer. This record identifies the output writer by SYSOUT class and form number. It also identifies the job according to the job log identification, JES2/JES3 assigned job number, and user ID.
7   SMF_007 Data lost. This record tracks the number of records lost when the SMF data sets and SMF buffers become full and records are dumped.
21   SMF_021 Error statistics by volume. This record contains the statistics for the entire volume during the period that the volume is mounted.
25   SMF_025 JES3 device allocation. This record contains the allocation-related information for each job that completes JES3 converter/interpreter (C/I) processing.
26   SMF_026 JES2 job purge. This record identifies the job-by-job identification, JES2-assigned job number, and programmer's name.
30   SMF_030 Common address space work—This record contains operation information such as the job and step start and end times, step CPU time, step termination status, number of records in DD DATA and DD * data sets processed by the step and job, device allocation start time, problem program start time, and storage protect key. The record contains the number of page-ins, page-outs, swap-ins, and swap-outs for both virtual input output (VIO) and non-VIO data sets. The record contains information on the number of hiperspace page moves and the movement of pages between expanded storage and central (real) storage. This data can be used in resource planning. Information is added to account for time spent in hiperspace processing on a step basis. The record contains an entry for each data set defined by a DD statement or dynamic allocation. Each entry lists the device class, unit type, device number, the execute channel program (EXCP) count, and device connect time for the data set. The record also contains remote system data for each system that executed work under a multisystem enclave.
30 2, 3 SMF_030_X This record contains a processor section that is added to SMF type 30 extension records. These extension records are created if several EXCP section lengths would exceed the maximum length (only for MVS releases prior to 5.1). This record also contains enclave data as per SMF_030.
30 2, 3 SMF_030_2_3_X This record contains data from subtypes 2 (activity since previous interval ended) and 3 (activity for the last interval before step termination) of SMF type 30 records with the accounting fields that are lined up with the job accounting fields (SMF 30 subtype 1). This record also contains enclave data as per SMF_030.
30 4 SMF_030_4_X This record contains data from subtype 4 (step total) of SMF type 30 records with the step accounting fields that are lined up with the job accounting fields (SMF 30, subtype 1). This record also contains enclave data as per SMF_030.
30 2, 3, 4, 5 SMF_030_OMVS_X This record contains data from subtypes 2, 3, 4, and 5. One record is built for each open MVS process section.
70   SMF_070 RMF CPU activity. z/OS writes this record for each measurement interval and when the session terminates. The record includes general information on CPU use during the interval (for example, wait time) and address space use.
70   SMF_070_X A subtype 20 record is built for each PR/SM™ partition. A subtype 10 record is built for each processor section, and the associated PR/SM logical processor data section and PR/SM partition data section (subtype 10).
71   SMF_071 RMF paging activity. This record contains information about the demands made on the system paging facilities and the usage of processor storage and auxiliary storage during the reporting interval.
72 1 SMF_072_1 Created by RMF if the workload activity measurements are activated.
72 3 SMF_072_3 Created by RMF monitor I if the workload activity measurements are activated and the system runs in goal mode.
85   SMF_085 Created by OAM to account OAM activity during object support. These records provide OAM performance measurements capability at the application programming interface level (the OSREQ macro interface).
90   SMF_090 System status. z/OS creates this record for operator tracking and reporting of reliability data, and allows the installation to establish availability statistics.
94 1 SMF_094 34xx Tape Library Dataserver report statistics. The system-managed tape library accumulates statistics over a period of one hour. These statistics represent the activity of the IBM 34xx Tape Library Dataserver that results from all hosts attached to the library.
At the end of the hour, the system calculates composite statistics about the activity of all devices in the library and writes an SMF type 94 record. The information in this record represents:
  • Current information: the value of the statistics at the point the record is written
  • Summary of last hour information: statistics over the most recent hour for which composite statistics have been calculated.

The record also contains import/export statistics and VTS enhanced library statistics.
94 2 SMF_094_2 The tape library accumulates statistics over a period of one hour. These statistics represent the activity of the IBM Tape Library Dataserver resulting from all hosts attached to the library. At the end of the hour, the system calculates composite statistics about the activity of all devices in the library and writes an SMF type 94 record.

When FC 4001 is installed and Outboard Policy Management is enabled, a new SMF94 record will be recorded. The new record is an SMF94 subtype 2, and will be recorded in addition to the existing SMF94 subtype 1. The SMF94 subtype 2 record is used to record Volume Pool Statistics.

The existing subtype 1 record is also changed. When FC 4001 is installed and Outboard Policy Management is enabled, some existing statistics will not be reported. The unreported fields will contain binary zero. Existing field SMF94HSF in subtype 1 records will contain the value 2 when FC 4001 is installed and Outboard Policy Management is enabled.
194   SMF_194 TS7700 Virtualization Engine statistics records. For the next generation of VTS, the TS7700 Virtualization Engine, the statistics design has been revisited. The useful statistics from the VTS have been retained and new statistics relevant for the TS7700 have been added. The historical statistics provide statistics where historical trends can be observed. These statistics are available to a host via the Bulk Volume Information Retrieval (BVIR) facility. Refer to the IBM Virtualization Engine TS7700 Series Bulk Volume Information Retrieval Function User's Guide for more information concerning the BVIR facility as it relates to the TS7700 statistics.
194   SMF_194_X TS7700 Virtualization Engine statistics records. This record is built as per SMF_194, however the Grid Library Sequence Number is converted from ASCII to EBCDIC for older VE Code Levels of the TS7700 Virtualization Engine statistics record.

For a detailed description of the SMF records, refer to the z/OS System Management Facilities (SMF) manual.

Parent topic: z/OS System (MVS) component