Synology RackStation SA3400D 12-Bay Dual Controller Rackmount NAS

Achieve Maximum Service Uptime with a Cost-Effective Dual-Controller High-Availability Solution

The Power of Dual-Controller High Availability

The Synology SA3400D is engineered from the ground up to deliver maximum service uptime for mission-critical operations. Its core strength lies in its dual-controller architecture, which features two separate controller modules operating in an active-passive configuration. These modules are interconnected by a dedicated, high-speed Non-Transparent Bridge (NTB), ensuring that all data is continuously synchronized from the active controller to the passive one. In the event of a controller failure or scheduled maintenance, the passive module can take over all services within minutes, dramatically minimizing downtime and ensuring business operations continue uninterrupted. This enterprise-grade design, further bolstered by hot-swappable dual power supplies, effectively eliminates single points of hardware failure.

The Synology SA (Scalability & Availability) series is purpose-built for enterprises where data availability and operational continuity are non-negotiable. Unlike other Synology ranges, the SA series prioritizes resilience through features like the dual-controller system and support for robust, dual-port SAS drives. These systems are designed to provide a highly reliable foundation for essential services, including large-scale file servers, mission-critical iSCSI storage for virtualization, and dependable, large-capacity backup targets. The extensive scalability, with the ability to expand to 36 drives or more, ensures that the storage infrastructure can grow alongside the business without compromising on availability.

Designed specifically for reliable and continuous data storage, the dual-controller Synology SA3400D provides a cost-effective and remarkably compact high-availability solution suitable for businesses of all sizes. With an initial raw storage capacity of up to 192 TB in its 12 drive bays, which can be expanded to a massive 576 TB, this enterprise server is perfectly suited for demanding file and block storage workloads. The entire system is powered by the versatile Synology DiskStation Manager (DSM) operating system, which includes a comprehensive suite of advanced data management and backup solutions to protect physical endpoints, virtual machines, and critical SaaS applications.

Key Features

• High Service Availability: Achieve near-zero downtime with a dual-controller active-passive design that provides minute-level failover for all services.
• Enterprise-Class Performance: Handle data-intensive applications effortlessly with over 3,500 MB/s sequential read and 2,900 MB/s sequential write throughput.
• Flexible Expansion Options: Seamlessly triple your storage capacity by connecting up to two Synology RXD1219sas Expansion Units, scaling to 36 total drive bays as your data needs grow.
• Built-in Data Protection: Safeguard your critical business data with a comprehensive suite of integrated tools, including Snapshot Replication, Hyper Backup, and the Active Backup Suite.
• Long-Term Support: Protect your investment with the peace of mind that comes from Synology’s comprehensive 5-year limited warranty.

Detailed Benefits

Certified SAN for Virtualization

Leverage the SA3400D as a highly reliable storage foundation for your virtual machine infrastructure. It is fully certified for VMware vSphere™, Microsoft® Hyper-V®, Citrix® XenServer™, and OpenStack environments, guaranteeing seamless integration. With the Synology Storage Console for VMware or Windows platforms, you can manage your VM storage components directly from your hypervisor for maximum convenience. Furthermore, support for VMware VAAI integration and Windows ODX helps offload storage operations directly to the NAS, significantly speeding up data transfer and improving overall VM performance.

Complete, Centralized Data Protection

The Synology Active Backup Suite provides a modern, license-free solution to consolidate data protection across your entire organization. It allows you to manage backups for Windows clients and servers, Linux endpoints, other Synology systems, and VMware® and Hyper-V® virtual machines from a single, centralized dashboard. The suite also extends protection to your cloud applications, enabling backups of Microsoft 365 and Google Workspace data. All backups are optimized using global data deduplication technology to maximize storage efficiency.

Powerful Collaboration Suite

Empower your teams with Synology’s private cloud solutions, enabling them to access company data, collaborate on documents in real-time, and communicate securely from anywhere. Synology Drive provides robust file sharing and cross-site synchronization, while Synology Office allows multiple users to co-edit documents, spreadsheets, and presentations. This entire productivity suite is hosted on your SA3400D, ensuring your business retains complete ownership and control over its sensitive data, free from third-party access or recurring subscription fees.

Why Choose SA Series Over xs+ Series?

The decision between the Synology SA series and the xs+ series comes down to a crucial business priority: High Availability vs. Raw Performance. The xs+ series is engineered to deliver the absolute maximum performance from a single server, making it ideal for tasks like high-frequency data processing or serving a large number of users from one device. However, it operates as a single node, meaning a hardware failure could result in service downtime. The SA3400D, by contrast, is purpose-built for high availability. Its fundamental design with two redundant, auto-failover controllers is engineered to eliminate single points of failure. If your most critical objective is to ensure continuous, uninterrupted access to data and services for mission-critical applications, the SA3400D is the definitive choice.

Technical Specifications

Ensure Your Business-Critical Services Are Always Online

The Synology SA3400D provides the resilience and reliability your enterprise needs to operate without interruption. Contact our experts to design a high-availability solution tailored to your business.