Figure 3 Smart Array P400 controller board runtime LEDs
Table 1 Interpreting Smart Array P400 Runtime LEDs
LED name and interpretationNameColorLED ID
Controller lockup LED.CR14Amber1
Disk Failure LED. A physical disk connected to the controller has failed. See
the Fault LED on each disk to determine the failed disk.
CR13Amber2
Activity LED for SAS port 2I.CR3Green3
Activity LED for SAS port 1I.CR8Green4
Command Outstanding LED. The controller is working on a command from
the host driver.
CR5Green5
Heartbeat LED. This LED flashes every 2 seconds to indicate controller health.CR6Green6
Gas Pedal LED. This LED, with item 8 (CR7), indicates the amount of
controller CPU activity. See Table 2.
CR4Green7
Idle Task LED. This LED, with item 7 (CR4), indicates the amount of controller
CPU activity. See Table 2.
CR7Green8
Table 2 Determining the P400 controller CPU activity level
Controller CPU activity levelLED 8 StatusLED 7 Status
0 to 25%FlashingOff
25 to 50%OffFlashing
50% to 75%OffOn Steady
75% to 100%On SteadyOn steady
NOTE: During server power on, each runtime LED illuminates randomly until POST completes.
8 Controller overview
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