So, my second drobo, (2nd gen, FW800 version) thinks one of my drives are bad. They all are Western Digital WB20EADS-00R6B0. I First got 2, and then recently I upgraded to 4, and last weekend reformatted the drobo to 16tb, and started transferring my files all over again. When it got to about 3 tb on the drobo, it started flashing lights… amber and green, on all drives. And the drobo said it had to relay out to the other discs. I assumed it was because I put so much on it, so fast. So after about 3 days of lights flashing, I got up one morning, and everything was fine. All Green. So I started loading some more files… When I got up the next morning, the second drive from the top was flashing red and amber, and the rest were green and amber, indicating a drive failure. I then removed the drive, and ran both Western Digital Lifeguard tools on it, and also Spinrite. Both did not indicate any problem. But when I reinstall it in the drobo, it still indicated that drive has failed.
In life guard tools, it indicated the firmware of the drive is 01.00A01, there are no firmware updated available from WDC…
The drobo is in firmware 1.3.5
My PC is running Windows 7.
And the drobo now goes from being seen on windows, to dropping off. I even hear the usb making connect and disconnect sounds.
So i guess, how can i know if a drive is really bad, when the only device that thinks its bad is the drobo?