Which storage type is designed to deliver block-level access over a networked storage area?

Which storage type is designed to deliver block-level access over a networked storage area?

• A. SAN
• B. NAS
• C. DAS
• D. SATA

Answer: (A)

Block-level access over a networked storage area is provided by a Storage Area Network. In a SAN, servers connect to storage devices through a dedicated network and see the storage as raw blocks (LUNs) rather than files. This lets applications and databases manage their own file systems directly on the block devices, delivering high performance and scalability for intensive I/O workloads. In contrast, NAS offers file-level access over a network (sharing files via NFS/SMB), which is suitable for shared folders but not for presenting raw block devices. Direct-attached storage is attached directly to a single host, not over a network, and SATA is simply a disk interface, not a storage-access model.

Block-level access over a networked storage area is provided by a Storage Area Network. In a SAN, servers connect to storage devices through a dedicated network and see the storage as raw blocks (LUNs) rather than files. This lets applications and databases manage their own file systems directly on the block devices, delivering high performance and scalability for intensive I/O workloads. In contrast, NAS offers file-level access over a network (sharing files via NFS/SMB), which is suitable for shared folders but not for presenting raw block devices. Direct-attached storage is attached directly to a single host, not over a network, and SATA is simply a disk interface, not a storage-access model.