Data Domain DD400 Series, User Manual

Page: 51 / 300

Chapter 1: Introduction 13
Hardware System-Level Interfaces
Power Supply LEDs
A restorer has three power supply units. Each power unit has an LED (see Figure 6) that glows
green when the unit is functional. The LED glows amber if the unit has failed, but still has power.
The LED also glows amber when the restorer is turned off but the unit is still plugged in to a live
power source. The LED is dark if the unit has no power. Also, when a unit fails, the power supply
failure LED on the
front panel of the system glows red (see Figure 3 on page 11).
Hardware Interface
The hardware interface panel is where you connect to a restorer with a serial console, a monitor and
keyboard, or through an Ethernet connection. See Figure 7 on page 14. The Ethernet interfaces eth0
and eth1 are for data transfer to the restorer or for administrative access over a network. Both
Ethernet interfaces are 1000 Base-T Gigabit copper ports that can accept 10/100 Base-T or Gigabit
connections.
Each Ethernet connection has two LEDs, one on each side. When the LED on the left side is dark,
the port has no live connection. When the LED on the left is green, the connection speed is 10/100
Base-T. When the LED on the left is amber, the connection speed is 1000 Base-T Gigabit. The
LED on the right flashes amber when the connection is active with network traffic.
Figure 6: Power unit LEDs
LED locations