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Chapter 5. virtualization concepts, Virtualization concepts – IBM DS8000 User Manual

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© Copyright IBM Corp. 2005. All rights reserved.

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Chapter 5.

Virtualization concepts

This chapter describes virtualization concepts as they apply to the DS8000. In particular, it
covers the following topics:

Storage system virtualization

Abstraction layers for disk virtualization

– Array sites

– Arrays

– Ranks

– Extent pools

– Logical volumes

– Logical storage subsystems

– Address groups

– Volume groups

– Host attachments

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