5 Essential Docker Storage Tools

Executive summary: This article reviews five popular container storage solutions—Portworx, BlockBridge, StorageOS, REX-Ray, and Diamanti—covering how each provides persistent, redundant, and secure storage for containers, their deployment models (software vs. hardware appliance), supported features (replication, encryption, caching, CSI support), licensing (open source, free limited, or commercial), and integration with orchestration tools like Docker and Kubernetes. It emphasizes security considerations for container storage and predicts broader CSI adoption and market growth for container storage technologies in the near term.