The different classes of CICSĀ® monitoring
records are not written to SMF in the same way:
- Performance
data records are written to a performance record buffer, which
is defined and controlled by CICS,
as the records are produced. The performance records are passed to
SMF for processing when the buffer is full, when the performance class
of monitoring is switched off, and when CICS itself
quiesces. When monitoring itself is deactivated or when there is an
immediate shutdown of CICS,
the performance records are not written to SMF and the data is lost.
- Exception
data records are passed directly to SMF when the exception condition
completes. Each exception record describes one exception condition.
You can link performance records with their associated exception records
by matching the transaction identification number (TASKNO field) or
network unit-of-work ID (NETNAME and NETUOWSX fields) in each type
of record.
- Transaction resource data records are
written to a transaction resource record buffer, which is defined
and controlled by CICS, as
the records are produced. The transaction resource records are passed
to SMF for processing when the buffer is full; when the transaction
resource class of monitoring is switched off; and when CICS itself quiesces. When monitoring itself
is deactivated or when there is an immediate shutdown of CICS, the transaction resource records are not
written to SMF and the data is lost.