Number Item Description
1 LED (POWER, READY,
WARNING, ALARM)
Status LEDs for the controller chassis.
2 ALM LED Red: Drives can be replaced.
3 ACT LED Green: Normal operation.
Green Blinking: The drive is being accessed.
4 Drives Disk drives
Number Item Description
1 Power supply unit Supplies electric power to the controller
components.
Controller chassis
Chapter 2: Hardware overview
Hitachi Virtual Storage Platform E590 and E790 Hardware Reference Guide 13
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