Common Functions of Storage Subsystems

Storage subsystems vary considerably in their designs and the choice of technologies that are inplmented in them. Yet, most storage subsystems share common characteristics and functions. The management techniques for accessing these functions may differ from product to product, but the architectural underpinnings are consistent. For instance, storage address space management is a basic function that can be controlled and managed many different ways.

One of the most important functional areas in storage subystem is the way the subsystem accommodates connections to multiple host systems and multiple HBAs in those systems. The sections on multiplexing I/Os and LUN masking are intended to give readers insight ...

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