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IBM DS8880 Architecture and Implementation (Release 8) by Mike Stenson, Peter Kimmel, Jeff Cook, Andrew Butcher, Sherri Brunson, Bertrand Dufrasne

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Virtualization concepts
This chapter describes virtualization concepts as they apply to the DS8880.
This chapter covers the following topics:
Abstraction layers for drive virtualization
Extent pools
4.1 Virtualization definition
For this chapter, the definition of virtualization is the abstraction process from the physical drives to one or more logical volumes that are presented to hosts and systems in a way that they appear as though each were a physical drive.
4.2 Benefits of virtualization ...

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