4

Chapter 4. Virtualization concepts

This chapter describes the virtualization concepts for the DS6000 and the abstraction layers for disk virtualization. The topics covered are:

￿Array sites

￿Arrays

￿Ranks

￿Extent pools

￿Logical volumes

￿Logical storage subsystems

￿Address groups

￿Volume groups

￿Host attachments

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IBM DS6000 Series manual Virtualization concepts