Chapter 1
Before You Begin
15
Figure 1-3 shows the LEDs at the back of the controller enclosure.
Figure 1-3
Controller Enclosure LEDs (Back View)
Table 1-4 describes the LEDs on the back of the controller enclosure.
Table 1-4
Controller Enclosure LEDs (Back)
Location
LED
Color
State
Description
Power and
cooling
module
AC Power Good
Green
Off
AC power is off or input voltage is below the
minimum threshold.
On
AC power is on and input voltage is normal.
Power and
cooling
module
DC Voltage/
Fan Fault/
Service Required
Yellow
Off
DC output voltage is normal.
On
DC output voltage is out of range or a fan is
operating below the minimum required RPM.
Controller
module
Host link status
Green
Off
The port is empty or the link is down.
On
The port link is up and connected.
Controller
module
Host link speed
Green
Off
The data transfer rate is 2 Gbps.
On
The data transfer rate is 4 Gbps.
10/100 BASE-T
STATUS
ACTIVITY
DIRTY
CLEAN
CACHE
CLI
Service
LINK SPEED
LINK SPEED
FC
Port 0
FC
Port 1
10/100 BASE-T
STATUS
ACTIVITY
DIRTY
CLEAN
CACHE
CLI
Service
LINK SPEED
LINK SPEED
FC
Port 0
FC
Port 1
AC Power Good
Service Required
DC Voltage/Fan Fault/
Host link status
Host link speed
Unit Locator
OK to Remove
Fault/Service Required
FRU OK
Cache status
Host activity
Expansion port status
Ethernet activity
Ethernet link status
