If cost is not an issue, which storage device interface is best for connecting to a corporate SAN?

The best storage device interface for connecting to a corporate Storage Area Network (SAN) is Fibre Channel (FC). Fibre Channel is specifically designed for high-speed data transfer and is commonly used in SAN environments due to its ability to handle large amounts of data with low latency. It supports high bandwidth and is scalable, making it suitable for enterprise-level applications where performance and reliability are crucial.

Fibre Channel also provides features such as dedicated bandwidth and the ability to connect numerous devices over long distances, which are essential for a robust SAN setup. Its architecture allows for easy integration into existing storage solutions, making it a preferred choice in corporate environments where performance and speed are prioritized over cost.

In contrast, other interfaces like IDE and SATA are generally used for direct storage connections and lack the performance and features required for SAN environments. SCSI is more versatile and has been used in storage systems, but it doesn't provide the same level of efficiency and scalability as Fibre Channel in large-scale deployments. Therefore, when cost is not an issue, Fibre Channel stands out as the optimal interface for corporate SAN connectivity.