The primary data source for CICS PA is the
data collected by the CICS® Monitoring
Facility.
CMF data (SMF type 110)
CMF data is written
to the MVS™ System Management
Facilities (SMF) data set as SMF type 110 records, subtype
1. Subsequently the data can be made available offline for analysis
by CICS PA.
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.
To understand the function of CICS PA and
to interpret the reports and extracts properly, some knowledge of
the CMF data records and their relationship to one another is necessary.
For a complete description of CMF data fields and to understand how
the fields are collected, see the CICS Performance
Guide.
Note: Take care when using the information in this
section to analyze monitoring data that is appropriate to your release
of CICS. You can use
Table 1 to determine in which CICS release particular monitoring
fields are available.
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.
Other data sources
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.