The most advanced and scalableenterprise SMB server on Linux

Fusion File Share by Tuxera is a high-performance, scalable, and highly reliable alternative to Samba and other SMB server implementations. It brings support for Microsoft’s Server Message Block (SMB) protocol to public cloud platform as a service (PaaS) offerings, software-defined storage (SDS) solutions, and enterprise-grade network attached storage (NAS). Our software makes it possible to securely share business-critical files over a network (SMB over QUIC) to many devices at the same time. Fusion has all the latest security and SMB capabilities to suit even the most demanding organizational needs.

Why choose Fusion File Share by Tuxera

High-performance, scalable SMB server

With its modular and threaded design, our cutting-edge kernel-space deployment boosts I/O throughput, reduces CPU usage, has a low memory footprint, and enables fast, easy handling of multiple simultaneous connections to shared resources.

Take control over data at risk

High availability

Fusion File Share can be deployed in Active-Passive mode over the distributed file-system clients to provide high availability and transparent failover of connections.

Extensive SMB-protocol support

Fusion File Share supports SMB 3.1.1 and previous versions (1.0, 2.0, 2.1). It works reliably with all SMB/CIFS protocols to ensure file-sharing interoperability across any network. We bring you comprehensive feature support including pre-authentication integrity, persistent handles, DFS support, VFS stacking, SMB over RDMA, SMB multichannel, shadow copy, compression, and plenty more.

Secure down to the core

Simplified, secure data management

Fusion File Share provides capacity planning and management through quota support, as well as user audit and access log support, plus dynamic configuration of shares – with no re-start required. Furthermore, we offer support for multiple authentication providers, such as Windows AD services (Kerberos), LDAP (Lightweight Directory Access), NTLM, file-based local user and group databases, and more.

Easy integration with Windows environments

With Windows ACL/inheritance support, Fusion File Share integrates seamlessly with Active Directory (authenticate with KDC), while also working in Forest and trusted domains.

Optimized for Mac clients

Through rigorous testing, Fusion File Share ensures smooth performance and interoperability with the latest file access protocols used by Mac clients.

Extensive design flexibility

User-friendly configuration UI

Our graphical user interface (GUI) allows you to intuitively configure global and share settings, and options available in Fusion File Share’s config utility. From the UI, you can also start Fusion File Share, dynamically configure it during runtime, read/download logs, and more.

Full service technical support

Full service technical support

The largest team of file systems experts – at your service. We offer comprehensive R&D support including integration, testing, benchmarking, reports, and product- and platform-specific optimizations. Plus our engineers are on call to help you.

Watch how Fusion File Share handles failover and recovery in Kubernetes

Technical data and resources

  • RDMA and multichannel support
  • Persistent handles, transparent failover, continuous availability
  • Compression
  • Scale-out awareness
  • Windows Active Directory Integration (join/authenticate Windows AD as domain member)
  • Volume Shadow Copy Service (VSS) support
  • Distributed file system support
  • Log/audit support


Tuxera first to bring SMB compression feature to Linux environments



Examining Container Storage Interface (CSI) support for Fusion File Share by Tuxera in Kubernetes


Built on strong partnerships

Since 2009, we’ve been a close partner with Microsoft in file systems and storage. We’re also Microsoft’s official partner in bringing full SMB support to all non-Windows platforms. What’s more, Fusion File Share developed from our experience and cooperation with our partners in network storage.

When to use Fusion File Share by Tuxera

Use Fusion File Share when you need maximum I/O throughput from an SMB solution. Our non-GPL replacement for Samba and other SMB/CIFS servers supports all the SMB protocol’s latest features, including SMB 2, SMB 3, and all related security features.

Cloud service providers

Network storage

Take control over data at risk

Backup and recovery

Customers we've helped with Fusion File Share by Tuxera

Fusion file share by Tuxera - Enterprise-grade SMB implementation

Get Fusion File Share by Tuxera

For software evaluations, pricing quotes, and technical inquiries about Fusion File Share by Tuxera SMB implementation, get in touch with us.

Pricing and evaluations

*Samba is an open source project of the Software Freedom Conservancy. Microsoft and Windows are the registered trademarks of Microsoft in the U.S and other jurisdictions. Apple and Mac are trademarks of Apple Inc., registered in the U.S. and other countries.