Cyclic file definitions support several methods of managing SMF
data sets. Select one (or more) of the following methods that best
suits your environment:
- GDG SMF files
- Generation Data Group data sets span a regular interval: for example,
daily, weekly, monthly, yearly, and fixed (number of days) cycles.
Define GDG cyclic files by specifying the GDG base name. CICS PA will
use this definition when one or more of the generations cover the
required reporting period.
- SMF files with symbolic date variables
- SMF files with symbolic date variables have data set names that
change according to the date they were created. For example, CICSPROD.D&YY&MM&DD..SMF defines
an SMF file that is created daily to contain today's SMF data.
In this case, CICSPROD.D060331.SMF contains data
for March 31, 2006.
- SMF files with fixed data set names
- SMF files with fixed data set names cover a period of time determined
by the interval that you specify. For example, CICSPROD.JULY.SMF contains
SMF data for the month of July.
- Ad hoc SMF files
- Ad hoc SMF files have fixed data set names, cover an undetermined
period of time (an origin value of NONE), and are used for every report
request regardless of the requested reporting period. For example, CICSPROD.SMF has
SMF data that covers a recent time period that you want to use for
every report request. Ad hoc SMF files are selected in the same way
as SMF files defined in personal system definitions; that is, they
are always selected if not excluded. Ad hoc SMF files cannot be specified
with other cyclic SMF file types as they are incompatible.