NEC Storage Manager - 1.2 Disk Array Configuration

Chapter 1 Storage Overview
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(1) Components
The disk array is composed of Disk Array Controller (DAC), which carries the component of
control systems, such as host director, disk director and cache, and Disk Enclosure (DE) that
carries two or more Physical Disks controlled by DAC.
Figure 1-1 Disk Array Composition (4000 Series)
(up to 10 cabinets)
Array Group 2
Array Group 1
Array Group 0