Overview

Each SMF record contains information similar to the contents of the corresponding formatted report. For each system activity that you select, RMF™ collects data and formats an SMF record to hold the data it collects.

Some totals, averages, and percentages are not explicitly contained in the SMF records, but are calculated from the SMF data. For elaboration of particular fields, see the descriptions of the corresponding fields in the printed report descriptions in z/OS RMF Report Analysis.

Also, each SMF record produced by RMF is described in z/OS MVS System Management Facilities (SMF).

RMF does not generate reports from SMF records type 72, subtype 4. However, these records are available for user-written reports.

Define the SMF record types and subtypes to be written in the SMFBUF option, which you can specify:

• In the PARM field of the RMF cataloged procedure
• On the system command START RMF
• On the system command MODIFY RMF

The record types and the corresponding RMF measurement activities are:

• Record type 70 has the following subtypes:
  • Subtype 1 – CPU and PR/SM™ activity
  • Subtype 2 – Cryptographic processor activity
• Record Type 71 – Paging activity
• Record type 72 has the following subtypes:
  • Subtype 3 – Workload activity
  • Subtype 4 – Storage data
  • Subtype 5 – Serialization delay
• Record Type 73 – Channel path activity
• Record type 74 has the following subtypes:
  • Subtype 1 – Device activity
  • Subtype 2 – XCF activity
  • Subtype 3 – OMVS Kernel activity
  • Subtype 4 – Coupling facility activity
  • Subtype 5 – Cache subsystem activity
  • Subtype 6 – Hierarchical file systems statistics
  • Subtype 7 – FICON® director statistics
  • Subtype 8 – Enterprise disk system statistics
  • Subtype 9 – PCIE based function activity
• Record Type 75 – Page/Swap data set activity
• Record Type 76 – Trace activity
• Record Type 77 – Enqueue activity
• Record type 78 has the following subtypes:
  • Subtype 2 – Virtual storage activity
  • Subtype 3 – I/O queuing activity
• Record type 79 has the following subtypes for Monitor II snapshot data:
  • Subtype 1 – Address space state data
  • Subtype 2 – Address space resource data
  • Subtype 3 – Central storage/processor/SRM
  • Subtype 4 – Paging
  • Subtype 5 – Address space SRM data
  • Subtype 6 – Reserve data
  • Subtype 7 – Enqueue contention data
  • Subtype 9 – Device activity
  • Subtype 11 – Paging data set activity
  • Subtype 12 – Channel path activity
  • Subtype 14 – I/O queuing activity
  • Subtype 15 – IRLM long locks
• Record type 104 serves as a container for performance measurement data collected by RMF XP from non z/OS platforms:
  • Subtype 1-12 – Performance data from AIX® on System p®
  • Subtype 20-31 – Performance data from Linux on System x®
  • Subtype 40-53 – Performance data from Linux on System z®
  • Subtype 60-64 – Performance data from Windows on System x

You find details about which monitor is writing which SMF records in the z/OS RMF User's Guide.