i'm having an issue with my ICH10R chipset with my RAID 5 Setup. I'm currently trying to expand an array volume by adding a disk to it. It currently has 3 x 1.5 TB HDD all the same brand , model etc.. but the i try to add a disk i get "An Unknown error has occured while an operation was in progress. The operation could not be completed" anybody has an input on that ? Recreating the volume is not an option as there is no way i can backup all the data on the volume.