Why are all the lights on my Drobo flashing red and green all together?
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Just checked Drobo’s website. 4 Bay Drobos that blink red/green all simultaneously means its rebuilding the data and can take several days until it is complete. This makes sense since we added the new healthy 4th drive. So give it some time and the lights should stop blinking after a while. This will not effect your planned data transfer.