Statement: SmartMatrix architecture allows all disks to share all front-end and back-end interface modules and ensures that a single disk failure never affects services. Is this statement True or False?

• A. Cannot Be Determined
• B. True
• C. False
• D. Not Applicable

Answer: (C)

Redundancy and fault tolerance in storage architectures. Even with shared front-end and back-end interface modules, a single disk failure does not guarantee that services will never be affected. When a disk fails, the array typically switches to redundancy modes and may use hot spares, but rebuilds consume I/O bandwidth and can cause increased latency or a temporary drop in performance. If the failed disk held unique data not fully mirrored, or if the failure stresses controller resources or interconnects, users can see degraded performance or brief unavailability. Because such architectures aim to prevent data loss, they reduce risk, but they cannot guarantee zero impact from one disk failure, making the statement false.