Altocumulus
CirrocumulusIt sounds like you might be saying it's in an HA pair. If it is, join it to the group and sync the other (still good device config) over to the mangled one.
If not, I imagine you should at least have a UCS backup somewhere... in which case refer to THIS article.
Hope that helps! If it does, please up-vote and select this answer, it would be greatly appreciated!
-Dylan
CirrocumulusWell yes, if you don't have a UCS backup you will have to manually configure the interfaces, VLANs, DNS, NTP, and basic HA stuff to rejoin the group. After that at least syncing the group will get you all your main config back (VIPs, Pools etc.)