Which of the following best describes the relationship between the storage and host in SAN?

• A. One-to-one.
• B. One-to-Many.
• C. Many-to-One.
• D. Many-to-Many.

Answer: (D)

In a SAN, hosts connect to storage through a fabric of switches, and storage is presented to hosts as LUNs from arrays. Because one host can access many LUNs and, at the same time, many hosts can access the same LUNs (with controls like zoning and LUN masking determining who is allowed to see what), the overall relationship is many-to-many. This setup lets multiple servers share the same storage resources while keeping access secure and configurable. A one-to-one relationship would be too restrictive, while one-to-many or many-to-one would not capture the shared-access nature of a typical SAN environment.