Best Software-Defined Storage (SDS) for Cloud
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Compare the Top Software-Defined Storage (SDS) for Cloud as of October 2026
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What is Software-Defined Storage (SDS) for Cloud?
Software-Defined Storage (SDS) is a storage architecture that separates the software control layer from the physical storage hardware, allowing organizations to manage storage resources — like capacity, performance, replication, and provisioning — through a unified software layer rather than being locked into specific hardware arrays. These solutions pool storage across commodity servers or diverse storage devices and abstract them into flexible, dynamic storage services. SDS enables policy-based automation, easier scalability, hardware vendor independence, and rapid provisioning. It supports block, file, and object storage interfaces and is well suited for hybrid cloud, edge, and modern data-driven environments. Ultimately, SDS empowers IT teams to treat storage as a programmable resource, reduce costs, increase agility, and adapt quickly to changing data demands. Compare and read user reviews of the best Software-Defined Storage (SDS) for Cloud currently available using the table below. This list is updated regularly.
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1
QuantaStor
OSNexus
QuantaStor is a unified Software-Defined Storage platform designed to scale up and out to make storage management easy while reducing overall enterprise storage costs. With support for all major file, block, and object protocols including iSCSI/FC, NFS/SMB, and S3, QuantaStor storage grids may be configured to address the needs of complex workflows which span sites and datacenters. QuantaStor’s storage grid technology is a built-in federated management system which enables QuantaStor servers to be combined together to simplify management and automation via CLI and REST APIs. The layered architecture of QuantaStor provides solution engineers with unprecedented flexibility and application design options that maximizes workload performance and fault-tolerance for a wide range of storage workloads. QuantaStor includes end-to-end security coverage enabling multi-layer data protection “on the wire” and “at rest” for enterprise and cloud storage deployments.Starting Price: $/TB based on scale -
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StorMagic SvSAN
StorMagic
StorMagic SvSAN is simple storage virtualization. It provides high availability with two nodes per cluster, and boasts users among thousands of organizations to keep mission-critical applications and data online and available 24 hours a day, 365 days a year. SvSAN is a lightweight solution that has been designed specifically for small-to-medium-sized businesses and edge computing environments such as retail stores, manufacturing plants and even oil rigs at sea. SvSAN is a simple, 'set and forget' solution that enables lightweight high availability as a virtual SAN (VSAN) with a witness VM that can be local, in the cloud, or as-a-service, and support up to 1,000 2-node clusters. It gives organizations choice and control by allowing configurations of any x86 servers and storage types, even mixed within a cluster. Plus, SvSAN eliminates downtime with synchronous mirroring and no single point of failure, and non-disruptive hardware and software upgrades -
3
DataCore Swarm
DataCore Software
Are you struggling with protecting and providing access to rapidly scaling data sets or enabling distributed content-based use cases? Using tape is cost-effective but data is not instantly accessible; and tape is difficult to manage. The public cloud often presents the challenge of compounding, unpredictable recurring costs, and the inability to meet local performance and privacy requirements. DataCore Swarm provides an on-premises object storage solution that radically simplifies the ability to manage, store, and protect data while allowing S3/HTTP access to any application, device, or end-user. Swarm transforms your data archive into a flexible and immediately accessible content library that enables remote workflows, on-demand access, and massive scalability. -
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Nexenta
Nexenta
Eliminate storage silos with Nexenta's open source-driven storage software. Comprehensive storage management in appliance & configurable reference architectures. The features you need and expect from the leader in software-defined storage. Agile storage software allowing you to take advantage of all-flash, hybrid, and all-HDD options. Nexenta storage software is installed in thousands of companies across the world serving a wide variety of workloads and business-critical situations. It powers some of the world’s largest cloud deployments, hosts some of the industry’s best entertainment content, serves vast quantities of government data across multiple continents and ensures that hundreds of thousands of medical records are kept safe and available at the point of service for healthcare companies located worldwide. -
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IBM Storage Ceph
IBM
Consolidate block, file, and object data on-premises with an enterprise storage platform that delivers a cloud-native experience. IBM Storage Ceph is an enterprise storage platform that unifies block, file, and object data to help organizations eliminate data silos and deliver a cloud-like experience while helping reduce costs and provisioning times. IT Leaders are shifting from a traditional storage approach towards integrated enterprise storage platforms that can handle diverse modern workloads seamlessly across on-premises and hybrid environments to simplify IT operations, reduce costs, and adapt to new and changing requirements. IBM Storage Ceph is the only enterprise storage platform that unifies block, file, and object data protocols within a single software-defined solution that can support most enterprise operational workloads to help reduce long-term costs of operating dedicated storage systems, delivering a cloud-like experience on-premises. -
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Scality
Scality
Scality provides file and object storage for enterprise data management deployments of all sizes. We adapt to your environment. Traditional on-prem storage? No problem. Storage for modern cloud-native applications? We’ve got you covered. Whether it’s critical healthcare or financial data, government intelligence, digitized national treasures, streaming video content or any other valued asset — Scality has a proven track record of ensuring eleven 9s data durability and long-term protection. -
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Nutanix AOS Storage
Nutanix
Nutanix AOS Storage is a modern, software-defined storage solution that replaces traditional SAN and NAS systems with a highly automated, high-performance, and scalable infrastructure. It delivers enterprise-grade capabilities through a distributed architecture, ensuring high availability and resilience. Key features include data locality, which stores data close to the application for low latency; intelligent tiering, automatically optimizing data placement between SSD and HDD tiers; and advanced data protection mechanisms like granular snapshots and self-healing capabilities. AOS Storage allows for linear scaling of performance and capacity, enabling organizations to start small and expand seamlessly as their needs evolve. Additionally, it offers flexibility in hypervisor choice and supports various data services, making it suitable for a wide range of applications and workloads. -
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Improve the way you manage, protect and store data, with unlimited access to select IBM SDS products and IBM Cloud®Object Storage. IBM Storage Software Suite provides a unified interface that streamlines data management, and cost-per-TB pricing makes it easier to plan as your capacity grows. Non-production use of the software in test environments is included. Straightforward per-TB pricing for the entire suite is related to the amount of storage capacity, not the type of storage or how it is used. There are no licensing headaches when changing from one type of storage to another or from one data type to another. All the IBM Storage Software Suite products share a consistent user interface, reducing user errors and the need for training. All the products are designed to work together, streamlining integration and worldwide support for the complete solution.
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9
FlashOS
Burlywood
Burlywood FlashOS™ is the industry’s first flash storage architecture that analyzes application behavior at the flash controller level, tunes SSD performance & features to be a perfect fit for the application, and delivers measurable benefits to the bottom line for customers deploying cloud storage, all-flash arrays, and hyper-converged solutions. Our purpose-built FlashOS™ controller technology enables the next generation SSDs for the data center. The first software-defined SSD solution for today’s complex cloud applications. Deep analysis and understanding of your storage environment. A unique, flexible software business model gives you control of the supply chain and costs. The only application-focused, adaptable solution for storage. Technical and strategic support during all phases of the lifecycle. Legacy storage can not keep pace with today’s complex cloud applications. -
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Sangfor aStor
Sangfor
Sangfor aStor is a software‑defined storage solution that unifies block, file, and object storage into a single, elastically expandable resource pool using a fully symmetrical distributed architecture, enabling on‑demand allocation of high‑performance and cost‑optimized, large‑capacity tiers to suit diverse service requirements. Available as either integrated hardware‑software or standalone software, it scales from just three commodity x86 nodes and supports cloud‑scale clusters of thousands of nodes with EB‑level capacity expansion. Its multi‑node parallel processing and intelligent caching (using RDMA, SSD hot‑data cache, and layering) deliver extremely high throughput, IOPS, and small‑IO performance, boosting cache hit rates to 90% and small‑IO handling by up to 65%, while distributed metadata management ensures jitter‑free handling of billions of files. -
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StorMagic SvHCI
StorMagic
StorMagic SvHCI is a hyperconverged infrastructure (HCI) solution that incorporates hypervisor, software-defined storage, and virtualized networking into a single software stack. With SvHCI, your organization can virtualize your entire infrastructure without the significant financial commitment required by other solutions on the market. SvHCI provides high availability with a unique cluster architecture of just 2 nodes. Data is synchronously mirrored between the two nodes, meaning an exact copy is always available on either node. If one node goes offline, the StorMagic witness maintains the cluster's health, keeping stores open, production lines moving and services running until the failed node is restored. A single StorMagic witness located anywhere in the world can service 1000 StorMagic clusters simultaneously. -
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SwiftStack
SwiftStack
SwiftStack is a multi-cloud data storage and management platform for data-driven applications and workflows, seamlessly providing access to data across both private and public infrastructure. SwiftStack Storage is an on-premises, scale-out, and geographically distributed object and file storage product that starts from 10s of terabytes and expands to 100s of petabytes. Unlock your existing enterprise data and make it accessible to your modern cloud-native applications by connecting it into the SwiftStack platform. Avoid another major storage migration and use existing tier 1 storage for what it’s good for...not everything. With SwiftStack 1space, data is placed across multiple clouds, public and private, via operator-defined policies to get the application and users closer to the data. A single addressable namespace is created where data movement throughout the platform is transparent to the applications and users.
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