I am looking in to setting up a server using Windows Home Server 11, and have some questions about RAID limitations. If I set up a RAID5 array (with say 3 1TB HDs), is it possible to add a 4th 1TB drive into the array without having to transfer all the data off the disks? Or is it possible to add in a 2TB drive either as a 4th or swap out one of the original 3 on the fly?
Also, when using a built-in RAID controller on a motherboard, what happens if the motherboard fails? Is the raid completely array lost?