#19 of 25 shared storage platforms for virtualization · Updated October 2026
Blockbridge review 2026
Blockbridge · Dependable builder with a quiet core
Blockbridge ranks #19 of 25 shared storage platforms for virtualization in the Virtualization Storage Ledger 2026, with a Ledger Index of 52.8 out of 100. Blockbridge is disaggregated iSCSI and NVMe/TCP block storage with a native Proxmox VE plug-in and tenant isolation; its core last shipped in August 2025.
Scores
Source: Virtualization Storage Ledger 2026, edition 2026-10-16. How each score works: methodology.
Pros
- Hypervisor integration4/5
Cons
- Scale and topology2.5/5
- Data protection and DR2.5/5
What the Ledger says
Blockbridge scores as a disaggregated block store tuned for Proxmox VE: a native plug-in with dated releases about every six weeks, NVMe/TCP since core 6.0, VAAI on vSphere and tenant isolation that suits service providers. It is held back by what the public record leaves out: the redundancy scheme across engines, the failure tolerance, the minimum system and how replication works are undocumented, so resilience and DR stay low with grade C. The core software has had no release since 6.1 on 2025-08-20, and the recent work is all in the Proxmox driver. A buyer should ask for the written redundancy design and failure behaviour before sizing a system.
Blockbridge has no AI features and has announced none. A documented REST API is the surface an agent could drive.
Capability by area
Buying, lock-in and release record
Buying and licence (commercial risk)(lower is better)
- Price and licence volatility2
- No public price or history; per TB per month reported by users
- Purchase constraints3
- Quote only; enterprise NVMe or SSD hardware required
- Channel and access2.5
- Direct sales only found; KB, guides and driver documentation public; download terms not found
- Owner stability2
- Small private company since 2010; ownership not disclosed; no acquisition found
- Cost of staying supported2.5
- Support bundled in the reported per TB per month model; no published windows
Technical lock-in(lower is better)
- Formats1
- Standard iSCSI and NVMe/TCP block volumes; VM disks keep the hypervisor format
- Export path1.5
- Per-volume import and export since driver 3.6.0; hypervisor-level storage migration
- Stack coupling2
- Needs a Blockbridge system plus a driver on each host, using the supported Proxmox storage API and no extra kernel modules
- Hardware / cloud coupling1.5
- Any server vendor, but enterprise flash with power-loss protection only
- Skills and tooling coupling2
- Blockbridge CLI and REST API; small skills pool
Release credibility
- Cadence3
- Dated Proxmox driver releases about every six weeks; core releases undated except 6.1, and none in the 14 months since
- Roadmap transparency1.5
- Public KB version history for the driver; no roadmap; core release dates not shown
- Say-do3
- Almost nothing announced ahead; the 2022 NVMe/TCP preview reached GA in core 6.0
- Velocity2.5
- Core 6.1 carried several items in 2025; 2026 work is driver compatibility and fixes
- Lifecycle stability2.5
- No support policy published; upgrades documented per driver release; core dates unclear
Partners and services
- Partner programme openness1.5
- No partner programme found
- Multi-tenancy and self-service3.5
- Crypto-isolated tenants with a tenant UI, per-tenant networking and VLAN binding
- API and infrastructure-as-code3
- Documented REST API, CLI, CSI driver and Proxmox driver; no Terraform or Ansible found
- Skills and certification1
- No training or certification found
Alternatives to Blockbridge
Questions about Blockbridge
Is Blockbridge any good?
Blockbridge ranks #19 of 25 shared storage platforms for virtualization in the Virtualization Storage Ledger 2026, with a Ledger Index of 52.8 out of 100. Its strongest areas are hypervisor integration. Its weakest are scale and topology, data protection and dr.
What are the best alternatives to Blockbridge?
The closest by Ledger Index are JovianDSS (53.1), SmartX ZBS (53.4), simplyblock (51.3), PowerFlex (54.9).
How is Blockbridge licensed and sold?
No public price or history; per TB per month reported by users.
How much lock-in does Blockbridge bring?
Blockbridge scores 8 out of 25 on technical lock-in (lower is better). Export path: Per-volume import and export since driver 3.6.0; hypervisor-level storage migration.
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