I removed a disk from my NAS in Raid 5 mode for replacement with another one, and that all works OK.
Now I have a old disk WD (Red series) with 4TB capacity that I want to reuse as single disk storage.
I insert it into my USB SATA ext BOX, I connected it to my Mac, but OOPS -- now I see 2 disks of 2 TB each and not only one; the disk utility sees as 2 disks, not as 1 disk with 2 partitions.
I tried on a Linux box and on a Windows PC and it's the same strange situation on each.
How can I reformat the whole disk to 1 big 4TB partition?
This is my parted Linux box output: http://www.listenagency.com/linux.png (2 disks same model but in reality there is only 1 disk!!!)