I removed two of two drives from Drobo 5N to investigate humming noise. When I reinserted the drives, the bay lights are flashing green/yellow non stop. Drobo is inaccessible now. How do I fix?
You wait, potentially a long time, it thinks the two drives failed & is moving all your data around to protect against drive failures, depending on the size of drives & the amount of data you could be waiting 2 or 3 days.
At least it has gone into data protection (flashing green & yellow) in lots of configurations pulling two drives might well have lost all your data. Looks like you’ve been lucky.
Find a safer way to investigate next time.
Thank you for the useful information.
I will disregard the rest.
Signs by Tomorrow