The following chart describes which RAID modes are available, depending on how many drives have been added to the 5big Storage Server enclosure:
Connect a monitor, mouse and keyboard to the device to access its operating system. You can find more information on how to configure the RAID in the technical briefs found on the 5big Storage Server support page:
http://www.lacie.com/support/network-storage/5big-storage-server/
For further guidance, please contact LaCie technical support.