Hadi Sayed is a Product Manager at KIOXIA America, Inc. Hadi has built his career in the NAND flash storage industry, with previous roles at Swissbit, CNEX Labs, and DapuStor. Hadi holds a B.S. In Computer Engineering and a M.S. In Electrical and Computer Engineering.
As SSD capacities scale toward 245TB and beyond, traditional architectures that separate SCM and high-capacity flash across different devices face increasing challenges in bandwidth scaling, latency predictability, endurance efficiency, and system cost. This topic explores mixed-media SSD architectures that integrate a small, high-endurance SLC namespace alongside a large, high-density QLC namespace within a single drive, enabling storage systems to better align flash characteristics with real-world access patterns. It examines how modern data platforms can use the SLC tier for latency-sensitive metadata, write buffering, and small-block operations, while directing large, aligned writes to the QLC tier. With this approach, mixed-media designs reduce write amplification, improve sustained write efficiency at high drive utilization, and make high-capacity QLC viable for performance-sensitive environments.