High-Performance Block Storage for OpenStack Environments

This white paper presents a performance evaluation of OpenStack integrated with Lightbits software-defined block storage, natively designed with NVMe® over TCP, focusing on I/O patterns commonly found in real-world-like applications, including random read/write and 70/30 mixed workloads. Using 32 virtual machines (VMs) across a four-node OpenStack cluster, the results demonstrate strong IOPS scalability and consistent throughput as concurrency increases.

The findings highlight Lightbits as a high-performance, software-defined storage solution well-suited for OpenStack environments that require reliable, scalable, and efficient block storage.