R/Evolution 2000 Series, Troubleshooting Manual

Page: 23 / 130

Chapter 3 Troubleshooting Using System LEDs 23
Figure 3-5 Expansion Module LEDs
Figure 3-6 Power-and-Cooling Module LEDs
Using LEDs to Check System Status
Check the enclosure status LEDs periodically or after you have received an error
notification. If a
yellow LED is on, the enclosure has experienced a fault or failure.
More than one of the LEDs might display a fault condition at the same time. For
example, if a disk drive failed due to an exceedingly high ambient temperature, both
the Temperature Fault LED
and the Fault/Service Required LED indicate the fault.
This functionality can help you determine the cause of a fault in a FRU.
The following topics describe what to do when an LED indicates a fault condition.
For descriptions of all LED statuses, see the
getting started guide for your enclosure
model.
■
“Using Enclosure Status LEDs” on page 24
■
“Using Drive Module LEDs” on page 24
■
“Using Controller Module Host Port LEDs” on page 25
■
“Using the Controller Module Expansion Port LED” on page 30
■
“Using Ethernet Management Port LEDs” on page 31
■
“Using Controller Module Status LEDs” on page 32
■
“Using Power-and-Cooling Module LEDs” on page 33
■
“Using Expansion Module LEDs” on page 33
Service
0 0
Unit Locator
OK to Remove
FRU OK
Fault/Service Required
SAS Out port status SAS In
port status
AC Power Good
DC Voltage/Fan Fault/Service Required