Rear M.2 LEDs

This topic provides troubleshooting information for the M.2 drive assembly.

LEDs on the rear M.2 interposer​

Figure 1. Rear M.2 interposer LEDs

LED	Status and description
1 Activity LED (green)	On: The M.2 drive is idle.
	Off: The M.2 drive appears de-asserted.
	Blinking (about four flashes per second): The I/O activity of the M.2 drive is in progress.
2 Status LED (yellow)	On: A drive fault occurs.
	Off: The M.2 drive is working normally.
	Fast blinking (about four flashes per second): The M.2 drive is being located.
	Slow blinking (about one flash per second): The M.2 drive is being rebuilt.

LEDs on the rear M.2 backplane​

Figure 2. Rear M.2 backplane LEDs

LED	Status and description
1 System heartbeat LED (green)	Blinking: Power on and the RAID firmware is working normally.
	Off: Power off or the RAID firmware is working abnormally.
2 PSoC heartbeat LED (green)	On: The PSoC firmware is working abnormally.
	Off: Power off or the PSoC firmware is working abnormally.
	Fast blinking (about one flash per second): Updating code (bootloader mode).
	Slow blinking (about one flash every two seconds): Exiting initialization (application mode). The PSoC firmware is working normally.