I’ve just purchased the EX4 (0 included drives) and have subsequently set it up with 4x WD Red 3Tb HDDs. It has been setup in RAID 1 configuration and has been running for just over 1 day.
This evening, I note that there has been a fault on the 4th drive. What now? Do I need to replace this drive? Can I scan and reformat it alone, rebuild and see if is stable after this?
Edit: The System Diagnostics Quick Disk Test came back with a pass for all drives, but this one remains flicerking red and blue.
Edit 2: After the system was rebooted, it has said that the drive is healthy and no issues are noticed.
Any thoughts would be appreciated.