Thinking of doing RAID 10, because out of all the RAID options it seems to be the best option based on my research. I need to know: Specific hardware to get? Besides the drives obviously. Names or links appreciated I want to have as many as 10 drives. Currently I have 6. I have 5TB of space used up. So does this mean that I need to have a spare 5TB of space that I can't use in the array, in order to create the array (since I don't want to lose my data)? Is there any such thing as Dynamic RAID, as in, can add more hard drives to the array without resetting a new array? Do I need a full backup of my most important and sensitive data, separate from the RAID, if I have RAID 10?