Hitachi Unified Storage VM Product Overview Guide
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Hardware overview
•The DBX dense drive box is a 4U chassis that contains two identical 24-
drive units. Each unit contains a maximum of 24 vertically-mounted
(from the top of the drive box) LFF HDD or SSD drives. Up to 24 dense
drive boxes can be mounted in a Unified Storage VM system. The
standard and dense drive boxes are shown in the following figure.
Figure 2-4 Standard drive boxes (front bezels removed)
Figure 2-5 Dense drive box (front bezel removed)