2025-26 DCIG Top 5 Modern SDS Block Storage Solutions

This document is a technical report evaluating the top five modern software-defined storage (SDS) block storage solutions for the years 2025-26. It outlines the advancements in SDS block storage, emphasizing their readiness for production deployments and the significant improvements made by providers to mitigate risks associated with these solutions. The report details common use cases for SDS block storage, including applications in content delivery networks, database systems, high-performance computing, real-time analytics, and virtualization. It also identifies drivers for the adoption of modern SDS block storage solutions, such as the need for a common storage management experience across on-premises and cloud environments, the search for alternatives to VMware vSAN, and increasing cybersecurity concerns. The evaluation criteria include deployment options, data protection, and technical support, with a focus on solutions optimized for modern IT infrastructures. The report serves as a guide for organizations seeking to implement SDS block storage solutions effectively.