Multiple choice technology architecture

Difference between NAS and SAN

  1. NAS is traditionally used for server consolidation whereas SAN is used for storage consloidation

  2. NAS uses block level I/O protocols, SAN uses file level I/O protocols

  3. NAS devices uses FC protocols to connect storage devices, SAN devices relies on TCP / IP suite of protocols

  4. SAN provides multipathing capability for business continuity whereas NAS cannot support multipathing
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

NAS (Network Attached Storage) provides file-level storage consolidation for multiple servers, while SAN (Storage Area Network) provides block-level storage consolidation. Option A correctly identifies this distinction. Options B, C, and D are reversed: SAN uses block-level protocols (FC, iSCSI), NAS uses file-level protocols (NFS, SMB), NAS uses TCP/IP, SAN uses FC, and both support multipathing capabilities.

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