Drobo Flashing Red


My Drobo gen 2 with 4 bays is giving trouble and I have 10 years photographs on it - Please help
3 lights were green and 1 was blinking red
I removed the red drive and re inserted it
Now 3 are solid red and 1 is blinking red and I get a message saying
the disk you have inserted is not readable by the computer


If you have had the new drive in the DROBO for a while and it is still red take it out and reinsert it, be sure to be firm when inserting. If after an hour it is still red I would try another known to be good drive. I would not remove any of the other drives. Good Luck