Figure 1-15 DBX (dense) drive tray rear panel
Item Description Item Description
1 Power Supply B1 2 Power Supply B0
3 Power Supply A1 4 Power Supply A0
5 ENC Unit B1 IN 6 ENC Unit B1 OUT
7 ENC Unit B0 IN 8 ENC Unit B0 OUT
9 ENC Unit A1 IN 10 ENC Unit A1 OUT
11 ENC Unit A0 IN 12 ENC Unit A0 OUT
The rear panel of a DBX high-density drive tray includes two redundant power
supplies, two ENC-IN ports, and two ENC-OUT ports for each section inthe
drive tray. The ports provide the connections to daisy-chain high-density
expansion units in the system. The rear panel also includes LEDs that show
the status of the ENC units and the power supplies. The following illustration
shows the hardware components on the rear panel of a high-density
expansion unit.
Dense intermix drive tray
The illustrations on this page and the next page show the front and rear
panels of the Dense intermix drive tray (DB60 - up to 60 LFF drives). The
tables following the illustrations describe the main features of each panel.
1-14
Introduction
Hitachi Unified Storage VM Block Module Hardware User Guide
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