HP AA988A HP StorageWorks 2012sa Modular Smart Array user guide (488320-002, J - Page 17

Table 1-5, Controller LEDs Back View

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

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Chapter 1
System Components
17
Figure 1-3 shows the LEDs at the back of the controller.
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
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
Amber
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 activity
Green
Off
The host port is not connected or the link is
down.
On
The host link is up and active.
AC Power Good
Service Required
DC Voltage/Fan Fault/
Host link status
Host link activity
Unit Locator
OK to Remove
Fault/Service Required
OK
Cache status
Host activity
Expansion port status
Ethernet activity
Ethernet link status