Paper Title: Benefits of ZNS in Datacenter Storage Systems

Paper Abstract: Zoned Namespaces (ZNS) is a new feature of NVMe, which divides the logical address space of a namespace into different zones. This feature enables more stable and predictable performance of datacenter workloads and it is expected to solve several issues with current datacenter storage systems such as storage durability and resource efficiency. We will introduce a prototype of a ZNS-supported SSD, and share the results of performance evaluation in a datacenter environment.

Paper Author: Woo Suk Chung, Storage Software Team Lead, SK hynix

Author Bio: Woo Suk Chung is the Storage Software Team Lead in SK hynix’s Memory Systems R&D Group. His research focuses on future memory/storage solutions, and he investigates feasibility of next generation technology for enterprise SSDs. He previously was a Project Leader in Broadcom’s Mobile and Wireless Group. While leading its Android system development team, he received Broadcom’s key achievement award and best performance award for successful enablement of a low power, high performance application processor. At Samsung, he developed WinCE and Linux mobile solutions for Samsung’s Application Processor, and had 18 granted patents. He holds BSEE and MSEE degrees from Hanyang University in Seoul.