Understanding hardware components is a core requirement within ONTAP SAN concepts. The exhibit highlights several key components on a FAS9000 system that are essential to system operation and high availability.
The large central components shown are the controllers, which house the CPUs, memory, and network interfaces responsible for data processing and cluster operations. Adjacent to the controllers are the NVRAM modules, which are critical for write caching and data integrity. NVRAM ensures that incoming write operations are safely logged and protected in the event of power loss or controller failover.
The exhibit also highlights the serial ports, which are used for low-level system access during installation, troubleshooting, or recovery scenarios. Serial ports are especially important during initial setup or when network access is unavailable.
Finally, the highlighted FlashCache modules provide read caching functionality. FlashCache accelerates read-intensive workloads by caching frequently accessed data on flash memory, improving overall system performance.
Other options are incorrect because they either include components not highlighted in the exhibit (such as power supplies or USB ports) or misidentify the flash modules. Therefore, the correct set of components shown in the exhibit is NVRAM-Module, Controller, Serial-Port, FlashCache-Module.
