Regarding my other thread started some time ago, I finally fixed it after a lot of experimentation.
I had to do several things to make mdadm work properly with dracut/systemd: 1. I had to add rd.auto=1 to kernel options in grub; 2. Upgraded to mdadm-3.3.2-r1; 3. Installed dracut-041; 4. Installed systemd 218-r3 5. I also changed kdmrc to use the systemd reboot/shutdown. Now my PC doesn't have a fit every time I reboot/shutdown. Dan