Storage Area Network vs. Network Attached Storage is a new debate. The next series of entries will examine the DAS vs. SAN debate and how to select the right strategy for your environment. DAS has been able to keep pace with the demands of many growing businesses. PCI-E storage cards from suppliers like Texas Memory Systems and Fusion-io allow for very high performance, application specific storage to be built at smaller capacity. The final case where large capacity performance and reliability are needed can be resolved with the third driver, high speed SAS drives.”]
Source: https://www.darkreading.com/database-security/das-vs-san