MoSMB: One SMB3 Server to Power Both macOS and Windows File Sharing

Today’s organizations operate in diverse, multi-OS environments where macOS and Windows systems must seamlessly collaborate. Whether it’s design, engineering, development, or data analysis—users expect fast, secure, and reliable file access, regardless of their operating system. Unfortunately, many legacy file-sharing solutions fail to meet these modern performance and compatibility demands.

Enter MoSMB—a high-performance, enterprise-grade SMB3 protocol server that bridges the gap between macOS and Windows clients. With robust SMB3.1.1 support, native macOS enhancements, and blazing-fast throughput, MoSMB delivers a next-generation file sharing experience that is platform-neutral, metadata-aware, and built for speed.

What Is MoSMB?

MoSMB, developed by Ryussi Technologies, is a fully compliant SMB3.1.1 server designed to bring high-speed, secure file sharing to multi-platform infrastructures. Whether deployed on physical servers, virtual machines, or cloud instances, MoSMB enables organizations to consolidate file storage while ensuring optimal access performance across all endpoints.

MoSMB supports features such as:

• RDMA (SMB Direct) for ultra-low latency
• Multichannel support for maximum throughput
• AES-128 and AES-256 encryption
• Active Directory integration
• Failover clustering and HA
• S3 cloud gateway integration
• Full macOS compatibility with AAPL Context and Streams

With MoSMB, enterprises gain a reliable and scalable file-sharing solution that eliminates OS compatibility concerns.

Native macOS Support: AAPL Context and Streams

One of MoSMB’s standout capabilities is its support for Apple SMB extensions, also known as AAPL Context and Streams. These enhancements dramatically improve the experience of macOS users on SMB shares.

Why AAPL Support Matters:

• Faster folder browsing in Finder
• Bundled metadata requests reduce server round-trips
• Support for extended attributes, resource forks, and custom metadata
• Seamless behavior with Apple-native tools and workflows

Without these extensions, macOS clients often experience lag, missing metadata, and compatibility issues. With MoSMB’s support for AAPL Context, users benefit from a native, responsive, and consistent experience when accessing shared files from macOS systems.

Named Streams for Metadata Preservation

Many file systems and applications—especially on macOS—use named streams to store metadata such as tags, thumbnails, and resource forks. MoSMB provides full support for named streams, ensuring:

• No data loss or corruption during file transfers
• Extended attributes remain intact across platforms
• Applications can read/write metadata without failure
• Time Machine and similar tools function as expected

This guarantees that your data remains complete, context-rich, and consistent—no matter where or how it’s accessed.

SMB3.1.1 for Windows Compatibility and Performance

MoSMB is fully compliant with SMB3.1.1, the most secure and advanced version of the SMB protocol. For Windows environments, this ensures:

• End-to-end encryption and integrity through signing
• SMB Multichannel support for multi-path data transfers
• RDMA acceleration for high-speed access
• Directory leasing and caching for reduced server I/O
• Authentication via Active Directory or local user accounts

This means Windows clients benefit from fast, secure, and reliable access to shared files, even under heavy workloads.

Performance Built for Demanding Workloads

MoSMB is engineered with performance at its core. Whether you’re handling small file transactions or streaming large datasets, MoSMB provides consistent, scalable throughput. Key performance features include:

• RDMA (Remote Direct Memory Access): Enables data transfers at over 100 Gbps with near-zero CPU load
• SMB Multichannel: Automatically utilizes multiple network paths for faster transfer speeds
• Lightweight architecture: Reduces memory and CPU overhead, enabling efficient deployment on modest hardware
• High Availability (HA): Ensures service continuity during system failures or maintenance windows
• Hybrid-Ready with S3 Integration

Modern infrastructures often span on-premises servers and cloud object storage. MoSMB supports seamless integration with S3-compatible storage platforms, acting as a cloud gateway that allows users to:

• Access cloud-based data via standard SMB shares
• Reduce storage costs by leveraging cloud scalability
• Enable remote teams to access data without a VPN
• Simplify backup, replication, and archival workflows

This hybrid architecture helps organizations optimize storage strategies while maintaining a familiar SMB interface for users.

Enterprise-Grade Security

Security is non-negotiable in today’s environment. MoSMB includes built-in safeguards to protect sensitive data:

• SMB encryption (AES-128, AES-256)
• SMB signing to prevent tampering
• User and group-level access controls
• Integration with Active Directory for centralized policy enforcement
• Auditing and logging for compliance and visibility

These features ensure that data is secure both in transit and at rest, without compromising on performance or usability.

Cross-Platform Access, Unified Storage

Whether you’re running macOS, Windows, or even Linux clients, MoSMB provides a single unified file access layer that performs consistently across platforms. Teams can collaborate, share, and manage files without the hassle of format issues, metadata loss, or slow performance.

No more maintaining separate file servers for different operating systems. With MoSMB, one platform handles it all—with confidence.

Scalability for Growing Needs

MoSMB is built to scale with your organization. Its modular architecture allows you to:

• Start small and scale horizontally as demand grows
• Add RDMA or clustering support as needed
• Deploy on virtual machines, containers, or bare metal
• Integrate with existing SAN/NAS infrastructure or cloud storage

From small workgroups to large distributed teams, MoSMB adapts to your evolving file sharing requirements.

Conclusion: One SMB Server. Total Compatibility.

As organizations become more platform-diverse, the need for a robust, cross-compatible file-sharing solution becomes clear. MoSMB delivers on this need by offering a powerful, feature-rich SMB3 server that works equally well for macOS and Windows clients—without compromises.

Whether you prioritize performance, metadata integrity, security, or cloud-readiness, MoSMB is designed to meet your file access challenges head-on.

Try MoSMB Today – Experience the Future of Cross-Platform File Sharing

Ready to bring fast, secure, and reliable SMB access to your macOS and Windows systems?

Request a free evaluation of MoSMB here:
https://www.mosmb.com/mosmb-evaluation-request

Have questions or need integration assistance?
Reach out to us at sales@ryussi.com