A technician is configuring a storage array for a file server with three identical hard drives. The primary requirements are to provide fault tolerance against a single drive failure while maximizing the available storage capacity. Which of the following RAID levels should the technician implement?
RAID 5 is the correct choice because it meets all the specified requirements. It requires a minimum of three drives, provides fault tolerance for a single drive failure through distributed parity, and is more space-efficient than RAID 1 or RAID 10.
RAID 0 uses striping for performance but offers no fault tolerance.
RAID 1 uses mirroring for fault tolerance but typically only uses two drives and results in a 50% loss of total capacity, which does not maximize storage space in a three-drive setup.
RAID 10 combines mirroring and striping, offers excellent performance and fault tolerance, but requires a minimum of four drives.
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