Final answer:
The term that describes a storage device supporting a volume spanning multiple disks is RAID. RAID combines multiple disks into a single logical unit to improve performance and/or redundancy. NAS, SAN, and JBOD are other types of storage devices.
Step-by-step explanation:
The correct term to describe a type of storage device that supports a volume spanning multiple disks is RAID (Redundant Array of Independent Disks). RAID is a method of combining multiple physical disks into a single logical unit to improve performance and/or redundancy. It distributes data across multiple disks, allowing for increased capacity, fault tolerance, or a combination of both.
For example, RAID 0 is a level of RAID that offers improved performance by striping data across multiple disks. RAID 1 provides fault tolerance by mirroring data on multiple disks. RAID 5 and RAID 6 offer a combination of performance and fault tolerance.
NAS (Network Attached Storage) refers to a storage device that has its own network address and is connected to a local area network (LAN). SAN (Storage Area Network) refers to a dedicated high-speed network that connects storage devices to servers. JBOD (Just a Bunch of Disks) is a term used to describe an array of individual physical disks that are combined together without any redundancy or striping.