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Component identification 18
E500 and P400 LEDs
LED ID Color Name Comments
1
Amber CR14: Controller Lockup The controller ASIC has locked up and cannot process
any commands.
2
Amber CR13: Drive Failure To determine which drive has failed, check the Fault
LED of each physical drive connected to the controller.
3
Green CR3: Activity Port 2E on the E500, or port 2I on the P400, is active.
4
Green CR8: Activity Port 1E on the E500, or port 1I on the P400, is active.
5
Green CR5: Command Outstanding The controller is working on a command from the host
driver.
6
Green CR6: Heartbeat When the controller is in good health, this LED flashes
every two seconds.
7
Green CR4: Gas Pedal This LED, together with the Idle Task LED (next item),
indicates the amount of controller CPU activity. For
more information, see the following table.
8
Green CR7: Idle Task This LED, together with the Gas Pedal LED (previous
item), indicates the amount of controller CPU activity.
For more information, see the following table.
Gas Pedal LED status Idle Task LED status Controller CPU activity level
Off
Flashing 0–25%
Flashing
Off 25–50%
On steadily
Off 50–75%
On steadily
On steadily 75–100%