#20 of 25 shared storage platforms for virtualization · Updated October 2026
simplyblock review 2026
simplyblock · Sharp opportunist
simplyblock ranks #20 of 25 shared storage platforms for virtualization in the Virtualization Storage Ledger 2026, with a Ledger Index of 51.3 out of 100. Seed-stage NVMe/TCP storage on an SPDK fork for OpenShift Virtualization and Proxmox VE; its DR set was announced in 2026 without a GA label.
Scores
Source: Virtualization Storage Ledger 2026, edition 2026-10-16. How each score works: methodology.
Pros
- Kubernetes and containers4/5
Cons
- Hypervisor integration2.5/5
What the Ledger says
simplyblock scores higher than its age suggests because its feature list, taken from vendor pages, already covers erasure coding, compression, deduplication, QoS and two NVMe transports. The scores are discounted where the evidence is thin: the September 2026 DR set has no version or GA label, the Proxmox plug-in has no tagged release, and the docs have no release notes, so grade C applies. Lifecycle stability is the weakest line, with CRD renames in the 26.4 beta and no support window. A buyer should run the live migration and metro replication claims in a proof of concept and ask for the support policy in writing before paying for Enterprise.
simplyblock markets throughput for AI training with an MLPerf Storage submission and an AWS GPU-utilisation benchmark, both its own numbers. It has no AI feature, no assistant and no MCP server; agents get the CRDs and the REST API.
Capability by area
Buying, lock-in and release record
Buying and licence (commercial risk)(lower is better)
- Price and licence volatility1.5
- Short history; Enterprise price fixed for the term (vendor)
- Purchase constraints2.5
- Enterprise by quote, priced by worker-node CPU; free Community Edition without support
- Channel and access2
- Public docs and code; Red Hat Ecosystem Catalog and AWS Marketplace; partner programme not found
- Owner stability4
- Seed-stage company founded 2022 with 2.75 million USD raised
- Cost of staying supported3
- Support lifecycle unknown; fast CalVer cadence
Technical lock-in(lower is better)
- Formats1.5
- Standard NVMe-oF namespaces; proprietary on-disk format
- Export path2
- Standard block devices at the host; no export tool
- Stack coupling2.5
- Kubernetes-first control plane, or a Linux install with sbctl; Proxmox VE through a Debian package
- Hardware / cloud coupling1
- Any Linux server with NVMe; AWS and GCP
- Skills and tooling coupling2.5
- Kubernetes plus an SPDK-based CLI
Release credibility
- Cadence3
- Frequent CalVer tags (26.2.7 to 26.3.2 within four months) with hotfixes days apart; no published rhythm
- Roadmap transparency2.5
- Public GitHub releases with notes; the docs release-notes page is empty; no roadmap
- Say-do2.5
- Few dated promises; the DR set was announced 2026-09-29 as shipping without a version or GA label
- Velocity3.5
- Multi-cluster, backup CRDs and DR within one quarter
- Lifecycle stability1.5
- CRD renames and parameter removals in the 26.4 beta; the old CSI repository archived; no support window published
Partners and services
- Partner programme openness2.5
- Not found
- Multi-tenancy and self-service2.5
- Tenancy with QoS (vendor); Control Center RBAC
- API and infrastructure-as-code3
- CRDs, REST API and sbcli; Terraform not found
- Skills and certification1.5
- Not found
Alternatives to simplyblock
Questions about simplyblock
Is simplyblock any good?
simplyblock ranks #20 of 25 shared storage platforms for virtualization in the Virtualization Storage Ledger 2026, with a Ledger Index of 51.3 out of 100. Its strongest areas are kubernetes and containers. Its weakest are hypervisor integration.
What are the best alternatives to simplyblock?
The closest by Ledger Index are Virtuozzo Storage (50.3), Blockbridge (52.8), JovianDSS (53.1), SmartX ZBS (53.4).
How is simplyblock licensed and sold?
Short history; Enterprise price fixed for the term (vendor).
How much lock-in does simplyblock bring?
simplyblock scores 9.5 out of 25 on technical lock-in (lower is better). Export path: Standard block devices at the host; no export tool.
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