August 2012
Intermediate to advanced
452 pages
15h 41m
English
book
Optimizing DB2 Queries with IBM DB2 Analytics Accelerator for z/OS
by Paolo Bruni, Patric Becker, Willie Favero, Ravikumar Kalyanasundaram, Andrew Keenan, Steffen Knoll, Nin Lei, Cristian Molaro, P S Prem
Content preview from Optimizing DB2 Queries with IBM DB2 Analytics Accelerator for z/OS
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Chapter 4. Feasibility study 87
The sizing is usually performed by the IBM DB2 Analytics Accelerator engineer based on the
results from the feasibility study, business scenario, the BI tools usage and requirements,
data refresh frequency, concurrent workload size and workload characteristics discussed in
Chapter 12, “Performance considerations” on page 301.
4.6.1 Deciding what you need for hardware
Keep the following considerations in mind when deciding what you need for hardware:
The amount of data that is kept on the accelerator - the size of the DB2 Analytics
Accelerator machine (Netezza 1000 models)
The requirements for data refresh in the data warehouse
The window for the ETL update (adjust CP and WLM definitions for update of data) ...
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