Hello,
I am doing the same setup, nice to see someone else with those requirements. actually without kickstart setting up softraid in anaconda was broken (try it manually without precreated partitions... it will drive you insane). out of the box booting didnt work when /boot was on a mirror raid and the mbr wasnt cloned either. not that great of an out of the box experience. i had those issues in f11 f12 and f13. but hey... instead of redundancy having some colored automatically selected flags and languages is probably more important after all.
kind regards, Rudolf Kastl
When installing Fedora on machine with -large- amount of drives (8-16), I simply use a single sfdisk script to create the same partition table on all drives. When dealing with smaller configurations (3-4 drives), Anaconda is OK. (At least to me)
As for MBR: I assume that like me, you create a small RAID1 for /boot and RAIDX for the rest, hoping the first disk won't die on a DVD-less machine :) In-order to solve it (when I remember to do it :)), I simply dd 446 bytes from the first drive to every other drive.
- Gilboa