The primary data source for CICS PA is the
data collected by the CICS® Monitoring
Facility. CMF data is written to the MVS™ System
Management Facility (SMF) data set as SMF type 110 records, subtype 1.
There are three types, or “classes”, of CMF data analyzed by
CICS PA:
- CMF Performance class data
- Detailed transaction-level information, such as the processor
and elapsed time for a transaction, or the time spent waiting for
I/O.
- CMF Exception class data
- Information about exceptional conditions suffered by a transaction,
such as queuing for file strings, or waiting for temporary storage.
This data highlights possible problems in system operation.
- CMF Transaction resource class data
- Additional transaction-level information about individual resources
accessed by a transaction. Currently, the transaction resource class
covers file and temporary storage resources only.
Another major data source for
CICS PA is:
- CICS statistics and server
statistics data
- SMF type 110 records, subtypes 2, 3, 4, and 5.
- CICS Transaction Gateway
statistics
- SMF type 111 records.
CICS PA also
analyzes the following types of data:
- DB2® accounting data
- SMF type 101 records written by DB2 on
behalf of CICS attached tasks.
- WebSphere® MQ accounting
data
- SMF type 116 records written by WebSphere MQ on behalf of CICS attached tasks.
- System Logger data
- SMF type 88 records written by the MVS System
Logger on behalf of CICS Transaction
Server journaling.
- OMEGAMON® XE
for CICS data
- SMF type 112 records written by OMEGAMON XE
for CICS to
log CICS transaction usage
by the database management systems Adabas, CA-Datacom, CA-IDMS, and
Supra.
The CICS PA Historical
Database is a repository for CMF performance class data, CICS statistics and server statistics
data, and CICS Transaction
Gateway statistics data.