What storage media would be used to build a cost-effective RAID 5 array?

To build a cost-effective RAID 5 array, you would typically use multiple hard disk drives (HDDs) as they offer a good balance of storage capacity, performance, and cost. While solid-state drives (SSDs) provide faster speeds, they are generally more expensive, making HDDs a more budget-friendly choice for larger capacities. It's advisable to select drives of the same size and speed to ensure optimal performance and reliability. Additionally, using SATA drives can further reduce costs while still providing adequate performance for many applications.