So I bought one of these popular Advanced Format drives to use with WHS. Used Data Life Guard to scan the whole drive while connected via USB, formatted it in NTFS so my RocketRaid 2320 controller ...
Western Digital is rolling out a new drive format that squeezes up to 11% more capacity from a hard disk by consolidating disk management information and using the resulting space for data storage.
Western Digital (WD) is beginning to use a new hard disk drive format that opens up between 7% and 11% more capacity on hard disk drives, meaning a 1TB drive could gain more than 100GB in capacity.