What is flash storage?

This episode of Techsplainers explores flash storage, a foundational technology behind many of today’s fast, responsive digital systems. The episode explains what flash storage is, how it differs from traditional hard disk drives, and why its solid-state design helps reduce latency and improve application performance. It walks through the basics of non-volatile memory, SSDs, and enterprise flash systems, showing how data is stored on memory chips rather than spinning disks. Listeners are guided through the main advantages of flash storage, including speed, durability, energy efficiency and compact physical design, while also getting a clear explanation of its tradeoffs. The episode notes that flash cells wear down over time and explains how modern systems use techniques like wear leveling and error correction to manage endurance. It also introduces different flash types and shows why organizations choose different options depending on workload needs, cost targets and performance goals. The conversation closes by connecting flash storage to broader data storage strategy and to related topics like NAND flash memory and NVMe, setting up later episodes in the series. Find more information at https://www.ibm.com/think/topics/flash-storage Find more episodes at https://www.ibm.com/think/podcasts/techsplainers. Narrated by Dan Segal "AI tools may be used to transcribe this episode and support selected stages of the production process. All AI-assisted content is reviewed by the production team before publication."