Hello, this mobo has 6 sata sockets and then 2-sata "ports" marked "port0 and port1" for some kind of back up utility. I woulld like to use them for other things since the "regular" 6 are used up. Can they be used that way?
The 2 extra SATA ports are standard SATA, and can be used freely, as you want.
Nonetheless, they have a different controller (not the Intel), so you cannot do RAID with both kind. A single RAID should be only on those two, or only on the 6 others, but you can have two raids, one in each controller.
The 6 on Intel have better performance. The other 2 can be used with special software (don't work on Win7 last time I checked) for caching, and accelerating boot time.