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Architecture and Components 2-5

Hitachi Universal Storage Platform V/VM User and Reference Guide

Hardware Components

The USP V/VM hardware includes the controller, drive unit, and power supply

components. Each component is connected over the cache paths, shared

memory paths, and/or drive paths. The USP V/VM controller is fully redundant

and has no active single point of failure. All components can be repaired or

replaced without interrupting access to user data.

The main hardware components of the USP V and VM storage systems are:

• Shared Memory

• Cache Memory

• Front-End Directors and Host Channels

• Back-End Directors and Array Domains

• Disk Drives and Flash Drives

• Service Processor

• Power Supplies

• Batteries

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Hitachi Universal Storage Platform VM Manual do Utilizador Página 31