I have a Promise j4 SSD Thunderbolt drive. It has 2 sets that are mirrored. At one point one of the drives became detached and we reconnected it. In disk utility it said that the drive is "Degraded", however both sets say they are online/green. We aren't having any problems with the drive, but would like to fix this. I don't think "automatically rebuild" was checked when the RAID was created. There are no rebuild options....any ideas?