CentOS - Jul 2014 - installing C7 on an existing software RAID system

I'm running Centos 6.5 on a software RAID-1 pair. I originally installed
it following one of the howtos from the Centos WIKI for Centos 5. My
first installation was on 5.x, then when I moved to 6.x I found that
Anaconda worked enough like the one in 5.x that I could easily adapt
the procedure.

however, the new Anaconda is nothing like the old one, so I doubt the
procedure could be made to work (or rather, that I would understand
how to make it work).

So, if there is anyone around who understands (1) the underlying
procedures, and (2) has an idea how to do it in C7, I'd be forever
(more or less) indebted if some form of howto could be created.
Or at least a few hints?

I'm not in a huge hurry to migrate this machine (my home desktop, box,
actually) to C7, but eventually (during the next 3-6 months, likely)
will want to either migrate on the same drive pair, or build a new
one on a new pair of drives, so I'd really appreciate some docs or
general guidance/info on how to proceed when the time strikes.

thanks!

Fred
-- 
---- Fred Smith -- fredex at fcshome.stoneham.ma.us
-----------------------------
   "For the word of God is living and active. Sharper than any double-edged
   sword, it penetrates even to dividing soul and spirit, joints and marrow; 
              it judges the thoughts and attitudes of the heart."  
---------------------------- Hebrews 4:12 (niv) ------------------------------