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Simplyblock: High-Performance Unified Software-Defined Storage with NVMe-oF and Open-Source Components

Understanding Software-Defined NVMe-oF Storage

Software-defined storage (SDS) is a cutting-edge approach to data storage that decouples storage management and provisioning from the underlying hardware. This abstraction enables organizations to achieve more flexible, scalable, and cost-efficient storage solutions tailored to their specific needs.

In the fast-paced world of data storage, organizations are seeking high-performance, flexible, and cost-effective solutions to manage their ever-expanding data. Simplyblock emerges as a trailblazing player, offering proprietary, patent-ready software-defined storage built on open-source components like SPDK, DPDK, and NVMe-oF. In this article, we will explore the groundbreaking technology of Simplyblock, its open-source components, relevant links, and why it presents a compelling alternative to pure open-source solutions.

The Power of NVMe-oF

NVMe-oF (Non-Volatile Memory Express over Fabrics) is a revolutionary technology that extends the high-performance capabilities of NVMe storage devices over the network. By leveraging RDMA (Remote Direct Memory Access) and other fabric technologies, NVMe-oF allows direct access to NVMe devices from remote servers, unlocking ultra-low latency and high-throughput data access.

Before NVMe-oF, NVMe (Non-Volatile Memory Express) technology was primarily designed for local, direct-attached storage (DAS) devices. NVMe-based SSDs (Solid State Drives) connected directly to the PCIe (Peripheral Component Interconnect Express) bus inside a server, bypassing traditional storage interfaces like SATA or SAS. This direct connection allowed for significantly higher data transfer rates, lower latency, and reduced CPU overhead, making NVMe SSDs ideal for high-performance, latency-sensitive workloads.

However, as data centers and cloud infrastructures evolved, there was a growing need to share NVMe storage resources across multiple servers and over long distances. Traditional storage protocols like Fibre Channel and iSCSI were not designed to fully exploit the low-latency and high-throughput capabilities of NVMe SSDs. This limitation prompted the industry to develop a new protocol optimized for NVMe storage networking.

NVMe-oF emerged as a solution to bridge the gap between NVMe SSDs and network fabrics, allowing NVMe storage devices to be accessed and managed remotely. The key goals were to preserve the high-performance characteristics of

NVMe while enabling storage disaggregation, flexibility, and scalability in modern data center environments.


Key Concepts and Benefits of NVMe-oF:

  1. Remote Direct Memory Access (RDMA): One of the fundamental technologies behind NVMe-oF is RDMA. RDMA enables servers to access each other's memory directly, bypassing the operating system and CPU for data transfer. This technology significantly reduces latency and minimizes data copies, optimizing the performance of NVMe-oF storage.

  2. Fabric Technologies: NVMe-oF can operate over various fabric technologies, such as RoCE (RDMA over Converged Ethernet), TCP (Transmission Control Protocol), InfiniBand, and FC-NVMe (Fibre Channel-NVMe). Each fabric has its strengths, allowing organizations to choose the most suitable option based on their network infrastructure and requirements.

  3. Storage Disaggregation and Pooling: NVMe-oF enables storage disaggregation, meaning NVMe SSDs can be pooled together in a shared storage pool and accessed by multiple servers simultaneously. This allows for efficient resource utilization and improved flexibility in data center storage architectures.

  4. Scalability and Agility: NVMe-oF facilitates the creation of large-scale, highly available storage systems with flexible scalability. It aligns with modern data center architectures that demand agility and resource efficiency.

  5. Data Center Modernization: NVMe-oF accelerates data center modernization efforts, enabling businesses to leverage the full potential of NVMe SSDs and take advantage of the latest storage technologies for optimal performance.


In conclusion, NVMe-oF is a game-changing technology that revolutionizes storage networking by extending the benefits of NVMe SSDs over network fabrics. The origin of NVMe-oF stems from the need to share NVMe storage resources across distributed environments while preserving the ultra-fast performance characteristics of NVMe. By leveraging RDMA and fabric technologies, NVMe-oF enables storage disaggregation, scalability, and data center modernization, making it a vital enabler for high-performance storage networking in the modern data-driven era.

Read more about NVMe-oF storage here.

Open-Source Components in Simplyblock

​Simplyblock harnesses the power of open-source components to build its groundbreaking SDS platform. Two key components are:

  • Storage Performance Development Kit (SPDK): SPDK is an open-source library that optimizes storage performance for NVMe and NVMe-oF devices. By providing a user-space NVMe driver, SPDK eliminates kernel-mode bottlenecks, delivering unprecedented storage performance. (Link:

  • Data Plane Development Kit (DPDK): DPDK is an open-source set of libraries and drivers that enables users to achieve fast packet processing and data plane operations. DPDK unleashes the full potential of network interfaces, enhancing data transfer efficiency and reducing latency. (Link:

Various other innovative companies are leveraging open-source frameworks like SPDK and DPDK - including AMD, ARM, Cisco or Intel.

Usage of NVMe-oF removes the need of development and maintenance of operating systems drivers (e.g. Linux), making the sotrage architecture future-proof. All the integration drivers with cloud stacks (e.g OpenStack or OpenNebula) will be open-sourced. As a result, simplyblock develops proprietarily only key, differentiating, patent-ready, parts of the software to offer unique proposition to the customers.

Simplyblock as alternative to open-source storage

Here are more advantages of simplyblock as a compelling alternative to pure open-source storage solutions:

  1. Advanced Data Management Features: simplyblock offers a rich set of advanced data management features that go beyond basic open-source storage solutions. These features include data deduplication, compression, thin provisioning, and data replication, providing organizations with enhanced data efficiency and data protection capabilities.

  2. Vendor Integration and Support: simplyblock's proprietary software-defined storage platform comes with dedicated vendor integration and support. This means that organizations can benefit from seamless integration with their existing IT infrastructure and receive professional support from the simplyblock team for a smooth deployment and ongoing maintenance.

  3. Performance Optimization: With expertise in NVMe-oF and open-source components like SPDK and DPDK, simplyblock focuses on fine-tuning storage performance for data-intensive workloads. This optimized performance ensures faster data access and processing, making it an ideal choice for latency-sensitive applications.

  4. Security Enhancements: simplyblock places a strong emphasis on data security and implements various security enhancements. These measures may include data encryption, secure access controls, and auditing capabilities, ensuring data privacy and compliance with industry regulations.

  5. Customization and Tailored Solutions: simplyblock understands that different organizations have unique storage requirements. By offering customizable solutions, simplyblock can tailor its software-defined storage platform to meet specific business needs, accommodating diverse workloads and use cases.

  6. Future-Proof Architecture: simplyblock's technology roadmap emphasizes innovation and staying at the forefront of storage advancements. By continuously developing and upgrading its platform, simplyblock provides customers with a future-proof architecture that can evolve alongside their changing storage needs.

  7. Enterprise-Grade Support and SLAs: For mission-critical environments, simplyblock provides enterprise-grade support and service level agreements (SLAs). These support levels ensure rapid response times, minimizing downtime and optimizing system performance during critical situations.

  8. Seamless Scalability and High Availability: simplyblock's architecture is designed for seamless scalability and high availability. Organizations can easily expand their storage capacity and maintain continuous access to their data without disruptions, making it suitable for growing businesses and dynamic environments.

  9. Robust Management and Monitoring Tools: simplyblock's proprietary management and monitoring tools offer a user-friendly interface for efficient storage provisioning, monitoring, and management. These tools simplify storage administration, empowering IT teams to focus on core business operations.

  10. Innovation and R&D Investment: As a proprietary solution, simplyblock dedicates significant resources to research and development. This commitment to innovation allows simplyblock to introduce cutting-edge features and optimizations that might not be available in pure open-source storage offerings.


Simplyblock disrupts the data storage landscape with its high-performance unified software-defined storage built on open-source components like SPDK, DPDK, and NVMe-oF. This proprietary, patent-ready technology offers unparalleled performance, seamless scalability, and expert support, making it a compelling alternative to pure open-source solutions. Embrace Simplyblock to unlock the full potential of your data storage infrastructure and gain a competitive edge in the data-driven era.

Simplyblock stands as a compelling alternative to pure open-source storage solutions due to its advanced data management features, vendor integration and support, performance optimization, security enhancements, and tailored solutions. With a future-proof architecture, robust management tools, and a focus on continuous innovation, simplyblock offers a powerful software-defined storage platform that can meet the diverse and demanding storage needs of modern enterprises.

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