May 2006
Intermediate to advanced
720 pages
19h 38m
English
book
IBM Tivoli Workload Scheduler for z/OS Best Practices: End-to-end and mainframe scheduling, 2nd Edition
by Vasfi Gucer, Michael A Lowry, Darren Pfister, Cy Atkinson, Anna Dawson, Neil E Ogle, Stephen Viola, Sharon Wheeler
Content preview from IBM Tivoli Workload Scheduler for z/OS Best Practices: End-to-end and mainframe scheduling, 2nd Edition
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32 IBM Tivoli Workload Scheduler for z/OS Best Practices
DataStore sizing
DataStore VSAM data files consist of:
Data files for structured and unstructured data
Primary index
Secondary index
Data files
The DataStore distinguishes VSAM data file (DD) types by their names:
Structured DDs are called EQQSDFnn
Unstructured DDs are called EQQUDFnn
Although the data file structure for these two types is the same, their content and
purpose differ, as described below.
Unstructured data files
The unstructured files are needed to be able to fetch the sysouts from DataStore.
The unstructured data files contain the SYSOUTs in a flat form, as provided by
the JES spool. You can check the SYSOUT with the BROWSE JOBLOG
function. Note that if requested to
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