After a week’s absence from my Mac and it’s peripherals, I reconnected the Thunderbolt Duo 4T (2x2T) for Mac to the power supply and immediately I heard a peculiar noise from one of the drives like it was trying to spin but couldn’t. It came out that it was Drive B in a Raid 0 configuration (no mirroring). I pulled the drive out of the enclosure and left the A inside. It was recognized but Disk utility but drive A wasn’t mounted. It said something like RAID slice missing…
If data is placed in sequence first on drive A and then B, it must be possible that all my data is still there and intact on A and only B seems to be damaged. I have a second Duo 4T RAID 0 system that is still operational and I mounted next it’s drive B to replace the damaged disk on the first system’s enclosure to see whether the missing files on A were still accessible. It didn’t solve the issue. The original pairs A and B need to be maintained like twins it seems. Separating them and replacing one of their sort with the same from another system doesn’t do a thing.
I don’t want to ship the drives for repair as the data contained are critically confidential (series of passwords that I can’t easily change). Since I believe my original data should still be intact on the A disk, is there any simple way to extract them without their twin B drive? Also, where can I get a B replacement since the product is only 7 months old?
