#24 of 25 shared storage platforms for virtualization · Updated October 2026
XOSTOR review 2026
Vates XOSTOR for XCP-ng · Dependable builder, young product
XOSTOR ranks #24 of 25 shared storage platforms for virtualization in the Virtualization Storage Ledger 2026, with a Ledger Index of 47.3 out of 100. XOSTOR packages LINSTOR and DRBD as the hyperconverged storage of XCP-ng 8.3, supported since June 2025 for pools of three to seven hosts.
Scores
Source: Virtualization Storage Ledger 2026, edition 2026-10-16. How each score works: methodology.
Pros
No domain scores 4 or higher out of 5.
Cons
- Kubernetes and containers0/5
- Security1/5
- Data services core2/5
What the Ledger says
XOSTOR scores as a young, narrow product: a supported way to get shared-nothing replicated storage on XCP-ng without a SAN, and little more. Resilience and operations are solid for its size, because DRBD quorum and Xen Orchestra deployment do the work, while data services, protocols, security and scale sit at the basic level with hard limits (2040 GiB per disk, three to seven hosts, no encryption at rest). Vates publishes its prices and dates and shipped the beta to supported status in eight months. A buyer should confirm that the VHD disk cap and the fixed replication factor fit their largest VMs before building a pool.
XOSTOR has no AI features and Vates has announced none for it beyond a funding statement about AI-related workloads on the next platform. Agents reach it only through the Xen Orchestra API.
Capability by area
Buying, lock-in and release record
Buying and licence (commercial risk)(lower is better)
- Price and licence volatility2
- Published price card; a 2026 customer story mentions licensing changes without detail; no history on the record
- Purchase constraints2.5
- Minimum three hosts, Essential tier at a fixed price, 24/7 only with a Vates VMS subscription; the open-source base is free
- Channel and access1.5
- Open downloads and updates; partner programme open to MSPs, resellers, CSPs and distributors
- Owner stability2
- Founder-controlled; first outside funding in 2026 from a growth fund and a public bank
- Cost of staying supported2
- Updates free; support is an annual subscription; XOSTOR supported only on up-to-date pools
Technical lock-in(lower is better)
- Formats1
- VHD on DRBD and LVM; convertible with standard tools
- Export path1.5
- Xen Orchestra export of VHD and OVA; DRBD pools readable only through XCP-ng
- Stack coupling3
- XCP-ng 8.3 only, deployed from the Xen Orchestra Appliance, replication factor fixed at creation
- Hardware / cloud coupling0.5
- Any x86 server; no cloud attach
- Skills and tooling coupling1.5
- XCP-ng and Xen Orchestra administration over standard Linux skills; LINSTOR and DRBD underneath
Release credibility
- Cadence3.5
- XCP-ng 8.3 updates every few weeks with dated posts; XOSTOR changes ride on them without a version of their own
- Roadmap transparency3.5
- Public documentation, GitHub and forum; no dated storage roadmap
- Say-do3
- XOSTOR went from beta (2024-10) to supported (2025-06) in eight months; QCOW2 reached GA for XCP-ng but not for XOSTOR
- Velocity2.5
- 2026 brought fixes and database backups for XOSTOR; the storage feature work (QCOW2) landed outside it
- Lifecycle stability3.5
- LTS until 2028-11-30 with a documented upgrade path from 8.2.1 pools; XCP-ng 9.0 undated
Partners and services
- Partner programme openness3.5
- MSP, reseller, CSP and distributor types with a 2026 programme; terms not published
- Multi-tenancy and self-service2
- Xen Orchestra resource sets and self-service at platform level (not re-verified); none in XOSTOR
- API and infrastructure-as-code2.5
- Xen Orchestra REST and JSON-RPC API; Terraform and Ansible for Xen Orchestra not verified in this edition
- Skills and certification2
- Vates training and support; no certification programme found
Alternatives to XOSTOR
Questions about XOSTOR
Is XOSTOR any good?
XOSTOR ranks #24 of 25 shared storage platforms for virtualization in the Virtualization Storage Ledger 2026, with a Ledger Index of 47.3 out of 100. Its weakest are kubernetes and containers, security, data services core.
What are the best alternatives to XOSTOR?
The closest by Ledger Index are StorMagic SvSAN (48.6), HPE SimpliVity (45.6), StarWind VSAN (49.1), Virtuozzo Storage (50.3).
How is XOSTOR licensed and sold?
Published price card; a 2026 customer story mentions licensing changes without detail; no history on the record.
How much lock-in does XOSTOR bring?
XOSTOR scores 7.5 out of 25 on technical lock-in (lower is better). Export path: Xen Orchestra export of VHD and OVA; DRBD pools readable only through XCP-ng.
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