There's always a chance for issues with raid-controllers... in that without an OS and drivers, there is no way to access the disks. Sometimes, (on good controllers anyway) the raid-controller will operate in some sort of simple-mode until the drivers are loaded, and then you will be able to use the full feature-set of the raid controller. If this is the case, you can use almost any bootable disk tools to do almost anything to the disks.
I highly recommend looking at GRC's spinRite as it's probably the best tool for doing surface scans & recovery. It's completely OS agnostic, so it doesn't matter if you're using windows or linux or whatever flavor of OS/file-system/whatever on that disk. They have ISO bootable images as well as thumb-drive based images you can use to boot directly into the tool without an existing OS on the machine as well.