Paper Title: Performance Evaluation of All-Flash Ceph Storage with QLC SSDs

Paper Abstract: The recent release of Red Hat Ceph Storage (RHCS) 3.2 with official BlueStore support and the advent of QLC SSDs has enabled the cost effective deployment of large Ceph clusters. The use of a few NVMe devices as a cache can improve performance as well. An example describes the work involved in designing, deploying, tuning, and testing the latest all-flash Ceph reference platform leveraging BlueStore, QLC, and NVMe. A new tuning and performance testing methodology for RHCS 3.2 using single socket AMD EPYC servers with QLC SSDs uses NVMe for write-ahead logging and the BlueStore metadata database. The result is considerable improvement over the performance using QLC SSDs without NVMe.

Paper Author: John Mazzie, Senior Solutions Engineer, Micron Technology

Author Bio: John Mazzie is currently a Senior Solutions Engineer at Micron, where he works on solutions involving high-performance NVMe SSDs for the Cassandra and MongoDB NoSQL databases and Ceph software-defined storage. He has focused on testing new features of applications and new system components. Before joining Micron, John worked on storage arrays at Dell. He earned an MSEE and BSEE from West Virginia University.