A data storage system running in a SAN environment uses LUNs that are accessed via a protocol that is primarily block-oriented. This describes:

A data storage system running in a SAN environment uses LUNs that are accessed via a protocol that is primarily block-oriented. This describes:

• A. block access
• B. file access
• C. object access
• D. byte-addressable access

Answer: (A)

In a SAN, LUNs are seen by the host as raw block devices, and data is transferred in fixed-size blocks. This is block-level access, where the host’s operating system may place a file system on the LUN or use the LUN as a raw block store. File access would involve protocols that operate on files (like NFS or CIFS/SMB) rather than on raw blocks. Object access refers to object storage with separate metadata and object IDs, not to block devices. Byte-addressable access sounds like addressing at the smallest granularity, but SAN LUNs presented to servers are inherently block-oriented, not byte-addressable at the protocol level. So the scenario describes block access.

In a SAN, LUNs are seen by the host as raw block devices, and data is transferred in fixed-size blocks. This is block-level access, where the host’s operating system may place a file system on the LUN or use the LUN as a raw block store. File access would involve protocols that operate on files (like NFS or CIFS/SMB) rather than on raw blocks. Object access refers to object storage with separate metadata and object IDs, not to block devices. Byte-addressable access sounds like addressing at the smallest granularity, but SAN LUNs presented to servers are inherently block-oriented, not byte-addressable at the protocol level. So the scenario describes block access.