HP Integrity rx4640 Server - Manual (Page 25)

Diagnosing array problems
In this section
Controller board runtime LEDs.................................................................................................................. 25
Diagnostic tools ..................................................................................................................................... 26
Controller board runtime LEDs
Immediately after the server is powered up, the controller runtime LEDs illuminate briefly in a
predetermined pattern as part of the POST sequence. At all other times during server operation, the
illumination pattern of the runtime LEDs indicates the status of the controller, as described in the following
table.
LED ID Color LED name and interpretation
1 Amber CR14: Controller Lockup LED.
2 Amber CR13: Drive Failure LED. A physical drive connected to the controller has failed.
Check the Fault LED on each drive to determine which drive has failed.
3 Green CR3: Activity LED for SAS port 2E.
4 Green CR8: Activity LED for SAS port 1E.
5 Green CR5: Command Outstanding LED. The controller is working on a command from
the host driver.
6 Green CR6: Heartbeat LED. This LED flashes every 2 seconds to indicate that the
controller is in good health.
7 Green CR4: Gas Pedal LED. This LED, together with LED 8, indicates the amount of
controller CPU activity. For details, see the following table.
8 Green CR7: Idle Task LED. This LED, together with LED 7, indicates the amount of
controller CPU activity. For details, see the following table.
Diagnosing array problems 25