Hardware Overview
64
System Hardware Guide
Front Panel
System power on
Reboot the system
Power supply alarm cutoff
Power on/off indicator
Power supply failure indicator
Figure 24: Front panel operations functions and indicators
Network activity indicator
Extreme temperature indicator
Rack screw
The upper right corner of the front panel has all of the front-panel interfaces (except for the disk
activity LEDs). See Figure 24.
•
At the top is the system power on button.
•
Below the power button is a very small button labelled
RESET
. The button immediately
reboots the system. Do not press the button unless instructed to by Data Domain Technical
Support.
•
The next button down is labelled
MUTE
and turns off the power supply alarm that buzzes
when one or more power supplies is not working.
•
The top LED is the power on/off indicator that glows green when power is on.
•
The second LED is the network activity indicator that flashes green with network activity
through the Ethernet port,
eth0
. See “Hardware Interface” on page 66 to identify the port.
•
The third LED indicates extreme high temperature for either CPU inside the chassis.
•
The last LED glows red when any one or more of the power supplies fails.
•
The rack screw is to keep the chassis from sliding forward and back when in a rack with slide
rails. Use a 10-32 nut to secure the rack screw to the rack.
The rack screws cannot support
the weight of the chassis in a rack. Use the rack screws only in combination with the slide
rails that are included in the shipping crate with the system.
