HP AA988A - Modular Smart Array Storage Controller SCSI User Manual page 17

Figure 1-3 shows the LEDs at the back of the controller.
AC Power Good
DC Voltage/Fan Fault/
Service Required
Unit Locator
Figure 1-3 Controller LEDs (Back View)
Table 1-5 describes the LEDs on the back of the controller. For information about
troubleshooting the system using LEDs, see "Troubleshooting" on page 53.
Table 1-5 Controller LEDs (Back)
Location LED
Power-and- AC Power Good
cooling module
Power-and DC Voltage/
cooling module Fan Fault/
Service Required
Controller Host link status
module
Controller Host link activity
module
Host link status
Host link activity
OK to Remove Fault/Service Required
Color
Green
Amber
Green
Green
Cache status
Host activity
OK
State Description
Off AC power is off or input voltage is below
the minimum threshold.
On AC power is on and input voltage is normal.
Off DC output voltage is normal.
On DC output voltage is out of range or a fan is
operating below the minimum required
RPM.
Off The port is empty or the link is down.
On The port link is up and connected.
Off The host port is not connected or the link is
down.
On The host link is up and active.
Chapter 1 System Components
Expansion port status
Ethernet activity
Ethernet link status
17