Easy Tier
In this chapter, we describe the function that is provided by the Easy Tier disk performance optimization feature of the SAN Volume Controller (SVC). We also explain how to activate the Easy Tier process for both evaluation purposes and for automatic extent migration.
7.1 Overview of Easy Tier
Determining the amount of I/O activity occurring on an SVC extent and when to move the extent to an appropriate storage performance tier is usually too complex a task to manage manually.
Easy Tier is a no-charge performance optimization function, ...

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