dmraid rebuild ability for intel isw and R1C5

Hallo,
i'm using older dmraid than 1.0.0.rc15 and motherboard with intel "fake
raid" with isw format. AFAIK there is support for rebuild dmraid with
intel isw format in RC15 (as said in this thread:
http://www.redhat.com/archives/ataraid-list/2009-March/msg00001.html).

Please can anyone tell me if there is possibilty to automaticlly-rebuild
RAID 1 after change one of the RAID 1 couple (the same way as Win XP or
Win 2003 do - just reboot the machine and Windows driver automatically
rebuilds the RAID)?
Or should i somehow change initrd in order to do automaticall check of
dmraid status and eventually run rebuild process? If so can anyone give
me a hint of how to do this?

Thanks for any help,
Jirka