The following table describes the LED meaning according to the drive's behavior:
LED Description Blink Behavior
LED 1 (Amber) Shows I/O activity Blinks at the rate of 250msec high, 250msec low with I/O activity.
LED 2 (Red) Drive fail indicator Solid red if drive is in link: disabled logical mode.
LED 3 (Yellow) Drive pre-fail indicator Solid yellow if any of the critical warnings in log page 0x02 is triggered.
LED 4 (Green) Drive health indicator Solid green when drive is healthy.
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