Physically resource disaggregated data center: technique routes, design, and open issues
摘要
Traditional server-based data centers suffer from low resource utilization, insufficient hardware scalability, insufficient resource usage elasticity, and low fault tolerance. With the ever-increasing network speed and processing power in hardware controllers, physically disaggregating the coupled resources in a server has been a promising trend for building next-generation data centers, as it effectively addresses the limitations of server-based data centers. Although some existing works follow this trend, how to build an efficient physically resource-disaggregated data center (PRD-DC) is still in the exploring stage. Thus, in this article, we first describe the trends and technique routes for PRD-DCs. Then, we present a potential solution for realizing a PRD-DC, named Serverless DC, including the I/O Processing Unit (IPU), SDC-kernel, and networking systems for controlling, managing, and connecting disaggregated storage/computing units respectively. Finally, some open research issues in PRD-DC are discussed.