Diagnosing array problems
In this section |
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Controller board runtime LEDs.................................................................................................................. | |
Battery pack LEDs................................................................................................................................... | |
Diagnostic tools ..................................................................................................................................... |
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 |
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1 | Green | CR502: Expander Heartbeat LED. This LED flashes every 2 seconds during |
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| normal operation. Abnormal conditions are indicated as follows: |
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| • If the LED glows steadily, the expander has an internal problem. |
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| • If the LED flashes twice per second, the NVRAM is corrupt. |
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| In either case, the expander does not function. |
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2 | Amber | CR510: System Error LED. |
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3 | Amber | CR509: Diagnostics Error LED. |
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4 | Amber | CR500: Drive Failure LED. A physical drive connected to the controller has failed. |
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| Check the Fault LED on each drive to determine which drive has failed. |
5 | Green | CR508: Activity LED for SAS port 4I. |
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6 | Green | CR507: Activity LED for SAS port 3I. |
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Diagnosing array problems 34