From the Dalet Academy: Shared Storage Workflows, PT.2

Video editing has always placed higher demands on storage than any other file-based applications, and with today’s higher resolution formats, streaming video content demands even more performance from storage systems, with 4K raw requiring 1210 MB/sec per stream—7.3 times more throughput than raw HD. In the early days of non-linear editing, this level of performance could only be achieved with direct attached storage (DAS). As technology progressed, we were able to add shared collaboration even with many HD streams. Unfortunately, with the extreme demands of 4K and beyond, many workflows are resorting to DAS again, despite its drawbacks. With DAS, sharing large media files between editors and moving the content through the workflow means copying the files across the network or on reusable media such as individual USB and Thunderbolt-attached hard drives. That’s not only expensive because it duplicates the storage capacity required; it also diminishes user productivity and can break version control protocols. In this blog, we'll look the key differences between major storage technologies and well as general usage recommendations.