I have a 1 TB Western Digital external hard drive that is old but works fine, I also have a 4 TB WD RAID (2 x 2 TB hard drives in one casing) that stopped working which I'm trying to recover. I must say it turns on when I plug it, but mac doesn't recognize it.
I pulled out HDD #1 from the 4 TB RAID, then connected it via the SATA connection to the housing of the 1 TB. Physically, it connected without a problem, but my Mac doesnt recognize the "new" drive.
Any ideas what I should do in order to see the data from the 2 TB HDD?