Apple Xserve (Original) - Manual (Page 46)

46 Chapter 4
Monitoring Status Lights and Other Indicators on the Server
The server has a number of built-in sensors that detect and report essential operating factors,
such as power, temperature, and condition of several key components. You can monitor the
server’s operation using the lights on the unit or using the remote monitoring tools.
The server’s status lights are listed in the table below.
If the Server Has a Problem
If you discover a problem with the server, you can assess the situation and often solve the
problem from a remote computer. The Mac OS X Server software documentation contains
information about restarting the server and solving some other problems; see the Quick
Start for Xserve booklet to learn which parts of the software documentation to consult.
Indicator Color Description
Power White On and OK
Security lock Yellow Lock is engaged
System identifier Yellow Indicates that there is a hardware error in the server
or that someone has turned on the light manually;
check the server monitoring application for more
information.
Ethernet
(lower is built-in port;
upper is network card,
if installed)
Green
No light
Link
No connection
System activity Blue Two rows of eight LEDs; in server with one processor,
rows of lights work in tandem; in dual-processor
server, rows operate independently for each
processor
Drive module
(upper LED) Green
Yellow
Red
Powered and running
Warning condition
Problem or failure
Drive module
(lower LED) No light
Blinking blue
Drive module can be removed
Disk activity; do not remove drive module