A server has six drives of equal size attached to a RAID controller. Which of the following fault tolerant RAID levels would allow the maximum amount of data to be stored?

RAID 1+0 (RAID 10) uses half of the total raw capacity for mirroring, resulting in less usable space (3/6 or N/2) compared to RAID 5 for six drives.

RAID 5 provides fault tolerance by distributing parity information across all drives, using the equivalent of one drive's capacity for this purpose. With six drives, 5/6 (N-1)/N of the total raw capacity is available for data, maximizing usable space among fault-tolerant options.

RAID 0 offers no fault tolerance, making it an invalid choice for a question specifically asking for a fault-tolerant RAID level.

RAID 1 mirrors drives in pairs, meaning only half of the total raw capacity is usable (3/6 or N/2), which is less efficient in terms of capacity than RAID 5 for multiple drives.