For information on using RMF™, see z/OS RMF User's Guide.
For information on Monitor I, II, and III, see z/OS RMF Report Analysis.
Record type 74 has the following subtypes:
- Subtype 1 — Device Activity The record is written for all devices specified in the DEVICE option for a Monitor I session. It contains entries for all devices that have been online at least once since RMF was started. The entry for any device that was offline at the end of the reporting interval, or for any device that was taken offline during the interval, does not contain data.
- Device Control data section
- Contains general information on the number of devices and types.
- Device data section
- Contains the volume serial number for tape and direct access devices, number of requests on the device, total active, pending and connect time to service those requests, the number of requests enqueued for the device and the device number, class and type and other data collected about the device. RMF produces one or more type 74 records for the classes requested by the installation, and one Device data section for each device.
- Subtype 2 — XCF Activity Monitor III Cross-System Coupling Facility (XCF) measurement writes this subtype, only if the Monitor III data gatherer is on.
- Control data section
- Contains control information for splitting and reassembling of the XCF records.
- System data section
- Describes the message traffic between the local system (where RMF is running) and the remote systems on a system level.
- Path data section
- Describes the message traffic broken down by signalling paths connecting the local system with the remote systems.
- Member data section
- Describes the message traffic on a member basis for members on the local system and members communicating with the local system.
- Subtype 3 — OMVS Kernel Activity Monitor III Data Gatherer collects z/OS UNIX System Services measurement data that are input for the RMF Postprocessor to create the OMVS Kernel Activity report.
- Control data section
- Contains various z/OS UNIX System Services measurement data.
- Subtype 4 — Coupling Facility Activity
One record is written for each coupling facility by each member in the sysplex.
- Local Coupling Facility data section
- One per record; contains path and subchannel data collected from each local system.
- Connectivity data section
- One per sysplex member connected to the coupling facility. This
member list is used by the Postprocessor to verify that it has a complete
set of SMF records for creating sysplex-level reports for this coupling
facility.
This section is gathered on only one system in the sysplex (RMF's sysplex master gathering) and is available only if the status flag R744FFLG in the Local Coupling Facility data section indicates that the coupling facility was connected to the system at the end of the interval.
- Storage Coupling Facility data section
- One per record; contains global data that is only collected once for the sysplex.
- Structure data section
- One for each structure allocated in this facility.
This section is gathered on only one system in the sysplex (RMF's sysplex master gathering) and is available only if the status flag R744FFLG in the Local Coupling Facility data section indicates that the coupling facility was connected to the system at the end of the interval.
- Request data section
- One for each structure in this facility if the structure has had an active connection at some time during the interval.
- Processor Utilization data section
- One for each processor (CP, not IOP) within the respective coupling facility.
- Cache data section
- Several sections for each Request data section are possible, depending on applications using the coupling facility.
- Remote Facility data section
- One section for each duplexing coupling facility with various signal counters.
- Channel Path data section
- One section for each channel path of type CIB or CFP associated with a local or remote coupling facility, containing channel path attributes. There may be up to eight Channel Path data sections per coupling facility.
- Storage Class Memory data section
- One section for each structure in this coupling facility that is allocated with storage class memory and has had an active connection at some time during the interval.
- Subtype 5 — Cache Subsystem Device Activity One or several records (depending on the number of devices attached to the control unit) are written for each cache subsystem. The header section of each record contains an individual header extension for subtype 5.
- Cache control section
- Contains control information and return codes from interfaces.
- Cache Device data section
- Contains cache statistics for each device.
- Cache Device data extension section
- This extension applies only to control unit types 3990-03 and 3990-06. It is collected by RMF to provide the same data as in the corresponding CRR record.
- Cache Control Unit Status data section
- Contains cache statistics for the control unit.
- RAID Rank/Extent Pool data section
- Contains RAID rank statistics for a 2105 device or extent pool statistics for a 2107 device.
- Subtype 6 — HFS Statistics
- HFS Global data section
- Contains global statistics and return codes from interfaces.
- HFS Global Buffer section
- Contains buffer statistics, there is one section for each buffer in the buffer pool.
- HFS File System section
- Contains file system statistics, there is one section for each mounted file system for which data gathering was activated.
- Subtype 7 — FICON® Director
Statistics
- FCD Global data section
- Contains IODF configuration data.
- FCD Switch data section
- Contains switch configuration data.
- FCD Port data section
- Contains port statistics.
- FCD Connector data section
- Contains configuration data for additional control units.
- Subtype 8 — Enterprise Disk System Statistics
- Control data section
- Contains control information and control unit information concerning the storage server.
- Link Statistics section
- Contains link performance statistics for each active adapter.
- Extent Pool Statistics section
- Contains capacity information of allocated disk space and performance statistics for an extent pool.
- Rank Statistics section
- Contains activity statistics about read and write operations in the ranks of an extent pool.
- Rank Array data section
- Contains information about array characteristics of a rank.
- Subtype 9 — PCI Express® Based
Function Activity
- PCIE Function data section
- Contains the PCIE Function ID upon which performance data is returned, the PCIE device name and type, counts of executed PCI operations, as well as other data collected about the function.
PCIE Function Type data section
- Contains one PCIE Function Type data block per PCIE Function data
section. A PCIE Function Type data block contains different type of
measurements that depend on the PCIE function type and hardware.
- Hardware Accelerator data section
- Contains zero or one hardware accelerator data block per PCIE Function data section. Provides performance statistics that are common between all hardware accelerators and independent from the application type.
- Hardware Accelerator Compression data section
- Contains zero or one hardware accelerator compression data block per PCIE Function data section. Provides performance statistics related to compression acceleration.
Note:
- All fields with format s_float have the type short format floating point.
- All fields with format l_float have the type long format floating point.
Each subtype contains a header section, the individual header extension (which contains offset/length/number triplets to address record parts following the RMF Product section) and the RMF Product section.
Macro to Symbolically Address Record Type 74: The SMF record mapping macro for all records produced by RMF is ERBSMFR. Its format is ERBSMFR (n1,n2,...) where n1,n2, ... are the SMF record types you want to map. Note that the parentheses are required only when two or more record types are specified. The mapping macro resides in SYS1.MACLIB.