Measuring OAM transaction performance using SMF

OAM uses system management facility (SMF) recording for gathering OAM statistical information to allow customers to measure the performance of OAM at the application programming interface level (the OSREQ macro interface).

The OAM SMF record allows the collection of statistical information about OAM usage for planning and diagnosis purposes such as:

Information system usage accounting and charge back to user departments
Performance analysis and monitoring to make certain that their information systems are as finely tuned as possible
Capacity planning to determine when to procure additional hardware resources, such as storage devices (DASD, tape, optical) and media
Potential problem determination data

The OAM SMF record subtypes are assigned to almost all OAM activities. The MVS system operator or system programmer can dynamically select the OAM SMF record subtypes to be recorded. The following activities have associated subtype records:

Invocations of OSR functions:
- ACCESS
- CHANGE
- DELETE
- QUERY
- RETRIEVE
- STORE
- STOREBEG
- STOREPRT
- STOREEND
- UNACCESS
Invocations of OSMC storage management activities:
- Storage group processing
- DASD space management processing
- Volume recovery utility
- Single object recovery utility
- Library space management
- Move volume utility
- Single object recall utility
- Immediate Backup Copy
- Tape Recycle
Library control system (LCS) optical library activities
- Optical library varies online
- Optical library varies offline
- Optical drive varies online
- Optical drive varies offline
- Optical cartridge entry
- Optical cartridge eject
- Optical cartridge label
- Optical cartridge audit
- Optical cartridge mount
- Optical cartridge demount
- Optical write
- Optical read
- Optical logical delete
- Optical physical delete
LCS object tape activities:
- Object tape write
- Object tape read
- Object tape demount
- Object tape logical delete
LCS file system sublevel activities:
- File system write
- File system read
- File system physical delete (delete)
- File system physical delete (uncommitted store)