3.4. Testing, Tuning, and the SAP System Landscape

As you realize by now, implementing and supporting an SAP solution means more than simply running a production system; on the contrary, a single SAP production solution—like R/3 or SAP APO—typically requires, at a minimum, two or more other systems that support it in one way or another. Each of the supporting systems plays a role that simply cannot be played by production; indeed, maintaining the availability of production would be nearly impossible without its supporting cast.

Unfortunately, each incremental system requires its own server and disk subsystem hardware, OS and database software, mySAP component instance, and so on, adding significantly to the cost to deploy and maintain an SAP ...

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