You've kind of lost me here. Did you have a failure on one drive, and then decide to wipe out the good drive? If so, then yes, you've buggered the cat.
You say that your failed drive is limping along. You also say that you reinstalled Fedora on the good drive. So can we assume that the good drive has nothing on it of any importance? IF that's the case, then can I suggest that you boot from a liveCD, and then VERY CAREFULLY use "dd" to do a bitwise copy from your ailing drive to a good drive. If you can get that to work, then you have a good chance of getting things back in good order.
OR, are you saying that the RAID1 is not the boot drive?