DataCore SANsymphony vs OpenEBS

DataCore SANsymphony is self-hosted, block-based software-defined storage for SAN and hyperconverged environments. It pools storage from different hardware and centrally manages capacity provisioning and data placement. Performance tools include RAM caching, parallel I/O processing, auto-tiering, and load balancing. Recovery and availability features include synchronous mirroring, asynchronous replication with failover and failback, snapshots, and continuous data protection. It lists NVMe, Fibre Channel, iSCSI, and SAS/SATA protocols; NFS and SMB access is supported through Windows File Server. Administrators can use a console, REST API, PowerShell API, plug-ins, provisioning and orchestration, and real-time or historical charts. Data services include encryption and immutability, and backup-tool integration is supported. Deployment options include storage virtualization, converged, hyperconverged, and hybrid-converged configurations. Four editions address high-performance, midrange, smaller high-availability, and backup or replication needs. Pricing is on request; there is no free plan, though a trial is available. Server installations require Windows Server 2016 through 2025, with a documented minimum of 8 GB RAM and 20 GB local disk space.

OpenEBS is open-source Kubernetes storage software for developers and platform SREs deploying stateful workloads. It turns storage on Kubernetes worker nodes into local or distributed persistent volumes and operates in userspace rather than relying on Linux kernel-dependent software. Its engines include Replicated PV Mayastor and local volumes using Hostpath, LVM, ZFS, or experimental Rawfile. Mayastor can synchronously replicate volumes across Kubernetes zones. Kubernetes-native operations provide copy-on-write snapshots and clones, while Velero plugins support backup and restore to AWS S3, GCP Object Storage, or MinIO. Volumes expose metrics including IOPS, throughput, latency, and traffic patterns for Prometheus and Grafana. OpenEBS also exposes declarative APIs through Kubernetes custom resources and can be installed with Helm 3.2 or newer. Mayastor disk pools support data-at-rest encryption with user-defined AES-XTS keys. Listed use cases include self-managed databases, observability stacks, CI/CD, object storage, websites, and ML pipelines. Mayastor DiskPools are limited to one block device, and encryption keys cannot be rotated.