OpenEBS vs StarWind Virtual SAN

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.

StarWind Virtual SAN is software designed to replace physical shared SAN storage in SMB, ROBO, and Edge environments. It provides fault tolerance and high availability starting with two nodes, and supports iSCSI, SMB3, NFS v4.1, VVols iSCSI, NVMe over Fabrics, and iSER. Deployment options include Windows-native software in a Hyper-V partition or a Linux-based virtual machine on a chosen hypervisor. An HTML5 console is used to monitor and manage hardware and software resources. Listed reliability features include ZFS self-healing, AI-powered telemetry, and call-home systems. Supported hypervisor versions include VMware vSphere ESXi 8.0 or later, Windows Server Hyper-V 2019 or later, oVirt/OLVM/RHV 4.4 or later, Proxmox VE 9.1 or later, and XCP-ng 8.3 or later. The free edition is self- or community-supported, and its comparison lists web UI support for KVM only; paid editions list KVM, Hyper-V, and ESXi. A 30-day trial is available, while paid pricing is on request.