To make administration from the command window easier, from the remote workstation I copied the files in the \Intel Util\AHCI_Intel_10.0.0.1046_W7x64\RAIDCFG32 directory up to the top level \Intel Util directory.
It came with Windows 10 preinstalled, but I've unplugged that disk and I am now installing Windows 7 on a separate disk instead. I have windows 8.1, with motherboard Gigabyte H81M-S and realtek audio drivers.
I have the ASrock X470 Master motherboard with integrated sound.
It uses the Realtek HD audio controller, but I just use the Microsoft one because for some reason Realtek does not let me split the ...
It was very easy to monitor progress by occasionally hitting the up-arrow then Plugging in previously removed drive, what becomes of the stale mirror data on Disk 2?
We were concerned the stale mirror data would could cause problems with the rebuilt mirror set.