Ransomware-Proof Air-Gapped and Immutable
Unified SAN, NAS, and S3 Object Storage
Eliminate storage sprawl and cyber vulnerabilities with StoneFly's turnkey unified storage that seamlessly consolidates block, file, and object storage into one secure, scalable system and protects critical data with built-in ransomware defense, optimizes costs with hybrid cloud integration, and accelerates workflows with hybrid flash support—all in a single solution.
What is StoneFly Unified Scale Out (USO™) Appliance?
The StoneFly Unified Scale Out Appliance is an enterprise-grade, all-in-one storage solution that integrates SAN (iSCSI, Fibre Channel), NAS (NFS, SMB/CIFS), and S3 object storage into a single, high-performance system. It eliminates the need for separate storage servers, reducing complexity and costs while delivering scalability, security, and seamless data management.
Who Needs StoneFly USO?
IT Departments & Data Centers
Consolidate storage infrastructure, simplify management, and ensure high availability with automated failover.
Media & Entertainment
Store and manage large video files with scalable NAS and S3 storage, ensuring fast access and collaboration.
Healthcare & Finance
Protect sensitive records with air-gapped and immutable storage, meeting compliance requirements (HIPAA, GDPR, SEC, etc.).
Manufacturing & AI/ML Workloads
Process and store massive datasets efficiently with high-speed storage tiers and NVMe caching.
Surveillance & IoT
Store and manage large volumes of video and sensor data with high-capacity, high-availability storage.
Backup & Disaster Recovery
Protect critical Veeam, Rubrik, Commvault, and Veritas backups from ransomware with air-gapped and immutable storage and instant recovery options.
Veeam Ready Unified Storage Solution
StoneFly USO is verified by Veeam and listed in the Veeam Ready database as both a Veeam Ready Object and Veeam Ready Repository. It meets rigorous performance tests for primary and secondary backup solutions, ensuring secure, ransomware-proof, and reliable Veeam backup integration.
Veeam Ready Object
Verified as a Veeam Ready Object—a primary or secondary backup target that stores Veeam backups as objects and exceeds performance tests.
Veeam Ready Repositories
Verified as a Veeam Ready Repository—a primary backup target solution that meets and exceeds rigorous functional and performance tests for backup and restore operations.
Award Winning SAN, NAS, and S3 Object Unified Storage Solution
Top 5 Midmarket SDS Block Storage 2025 - 2026
Integrated iSCSI and Fibre Channel SAN, recognized by DCIG, delivers high-performance block storage with automated ransomware protection, optimization, and management.
Top 5 Midmarket SDS File Backup Storage 2025 - 2026
Secure and scalable NFS and CIFS/SMB NAS, recognized by DCIG as a top 5 backup target storage solution with integrated air-gapped and immutable ransomware protection.
Top 5 Midmarket SDS Object Backup Storage 2025 - 2026
Ransomware-proof air-gapped and immutable S3 object storage, recognized by DCIG as a top 5 backup target, offers scalable primary or secondary backup target storage.
Ransomware-Proof Air-Gapped and Immutable Unified Storage
Store critical block, file, and S3 object data in StoneFly USO’s secure and ransomware-proof air-gapped and immutable storage. The unified storage solution provides multi-layered security by combining two powerful defenses: air-gapping and immutability.
True Air-Gapped and Immutable Storage
StoneFly USO isolates your data from the network, making it completely inaccessible to ransomware. At the same time, it ensures that stored information cannot be altered or deleted, guaranteeing data integrity. This dual-layered protection keeps your files safe even if your primary systems are compromised.
Automated Isolation and Connection
Control air-gapping and immutability using user-defined policies. StoneFly USO automates the isolation and reconnection of storage volumes, ensuring that your data is securely disconnected when not in use and only accessible when needed. This automation minimizes exposure to cyber threats effectively reducing surface of attacks without sacrificing accessibility.
Block, File, and Object in One Unified Storage Solution
StoneFly USO supports SAN, NAS, and S3 object storage in a single, scalable, and cost-effective appliance—eliminating the need for separate systems. Provision high-performance SAN volumes, set up NAS file shares, and scale with S3 object storage, all managed through one interface.
Designed for seamless integration, StoneFly USO consolidates storage for VMware, Hyper-V, KVM, Citrix, XenServer, and Proxmox hypervisors. It also supports enterprise backup software including Veeam, HYCU, Rubrik, Commvault, and Veritas, providing a unified storage solution for diverse workload requirements.
Automated NVMe, SAS, and Cloud Storage Tiering
StoneFly USO optimizes storage costs and performance with automated tiering across NVMe, SAS, and cloud storage. Data is automatically moved between tiers based on access frequency or age, ensuring that frequently accessed data stays on high-performance NVMe, while less critical data is transferred to cost-effective SAS or cloud storage.
This intelligent data management maximizes efficiency and minimizes costs without manual intervention, providing enterprise organizations with a seamless and optimized storage experience.
Hot-Tier
NVMe for ultra-fast access, ensuring minimal latency and maximum performance for critical workloads. This tier accelerates frequently accessed data, delivering enterprise-grade speed without bottlenecks.
Cold-Tier
SAS drives provide cost-effective, high-capacity storage for cold-tier data, ensuring reliable long-term retention while optimizing costs.
Cloud-Tier
Integrated cloud storage provides a scalable, cost-efficient tier for archiving and offloading infrequently accessed data, ensuring seamless expansion while reducing on-premises storage costs.
Integrated
Active-Active Controllers for High Availability and Load Balancing
Each StoneFly USO appliance uses dual active-active controller, offering both high availability and load balancing. This dual-controller configuration ensures continuous access to data while optimizing performance.
High Availability
Both controllers are always active, providing redundancy and failover protection. If one controller encounters an issue, the other takes over seamlessly, ensuring zero downtime and uninterrupted data access.
Load Balancing
With both controllers actively handling requests, the workload is distributed, optimizing storage system performance and preventing bottlenecks. This balanced distribution ensures that no single controller becomes overloaded, leading to faster data processing and improved overall system efficiency.
Security, Optimization, and Management
Key Features of StoneFly USO
Air-Gapped Vault®
Physically/logically isolated repositories, controllers, and nodes for ransomware-proof target storage.
Immutable Storage
Immutable object and file lockdown prevents changes, deletion, and overwriting for a set retention period.
Anti-Ransomware Scanner
Lightweight daily, weekly, monthly scans that detect and flag malware that hides and attempts to spread through the network.
Hardware-Based Encryption
Hardware-based AES 256-bit encryption built directly into the drives, ensuring robust, OS-independent data protection.
Volume Deletion Protection
Volume deletion protection prevents unauthorized data deletion by enforcing a strict, multi-step verification process with dual administrator approval.
Immutable Snapshots
Immutable snapshots create tamper-proof, read-only backups that can't be altered—even during an attack. They provide a secure restore point, keeping your data history unchangeable.
Deduplication
Identify and eliminate duplicate data by storing only one copy of identical files. This process significantly reduces storage space and costs while boosting overall efficiency.
Thin Provisioning
Thin provisioning dynamically allocates storage on demand, ensuring you only use what you need. This optimizes capacity utilization, reduces waste, and lowers costs.
FlashCache
FlashCache leverages NVMe SSDs as a high-speed caching layer, accelerating data access by dynamically storing frequently used data on ultra-fast drives while keeping bulk data on cost-effective storage.
Available Configurations of StoneFly Unified Storage
The USO appliance adapts to your needs, from a powerful single-node setup to cloud-scale. Build and scale your storage infrastructure with the perfect balance of performance, capacity, and cost—on your terms.
Single Node
4 to 108-bay turnkey appliances with active/active RAID controller.
Dual Node Shared Nothing
Dual clustered unified storage appliances and automated failover and failback for high availability.
Scale Out
Start with three storage appliances & scale out to as many nodes as you need - increasing performance and capacity in multiples.
High Availability
Modular hardware with two storage controller nodes and one or more HA RAID array(s).
How StoneFly Unified Storage Scales
Scale Up or Vertical Scaling
Start with a single-node USO offering terabytes of storage and expand capacity with additional storage expansion units. Each appliance node can support up to 256 drives with EBODs, depending on the model.
Scale Up or Vertical Scaling
Start with three USO nodes that deliver triple the performance and storage with a unified global namespace. Add more nodes to multiply capacity and speed—StoneFly USO scale-out supports virtually unlimited nodes.
Scalability in StoneFly USO-HA
Scale performance by adding storage controllers or boost capacity with storage expansion units (EBODs)—all modularly and without downtime, thanks to the disaggregated architecture of USO-HA
FlexStor ScaleHA™: Cloud-Scale Unified Storage MSP Data Center Infrastructure
The FlexStor ScaleHa™ is a disaggregated ransomware-proof, high performance, and scalable unified SAN, NAS, and S3 object storage data center infrastructure built and tested for managed service providers (MSPs) and large organizations.
It is a Lego set of cloud-scale infrastructure enabling users to custom-build their data storage inrastructure with the security, performance, capacity, and networking capabilities as needed.
The architecture consists of the following components:
- Two, or more, Controller Directors – each with active/active storage virtualization engine and SAN, NAS, and S3 object storage support
- 2x 10, 20, 40, 100, 400 Gbps network support
- 8, 12, 16, 24, 36, and 60-bay single, dual, or scale out appliances – as many as needed
- Optional 12, 16, 24, 36, 60, and 108-bay storage expansion units – up to 256 drive support per node.
Each appliance node can be set up as:
- Unified SAN, NAS, and S3 storage appliance
- Air-Gapped Vault® and immutable storage
- Always On-Air® Gapped storage appliance
- High performance iSCSI or Fibre Channel block storage
- Immutable FileLock
- Immutable S3 object storage
StoneFly Stor365™
High Performance and Compact Unified Storage Appliance
The Stor365 appliance delivers all the features of StoneFly USO in a compact, high performance, and secure appliance with Intel 13 Gen processor, up to 96GB memory, dual channel 20/40Gbps storage connection, multiple 10Gbps SFP+, optional NVMe and disk storage expansion, and SAS storage and RAID expansion array.
Custom-Build Your Unified Storage Solution
Instead of relying on fixed models that force you into thin or fat provisioning, StoneFly partners with enterprise customers to custom-build a unified storage platform tailored to your performance, capacity, and budget needs.
XS-Series
Cost-effective, mid-tier storage performance powered by single processors for efficient data management.
XD-Series
| Specifications | XS-Series | XD-Series |
|---|---|---|
|
Processor(s) |
12, 16, 20, 26, 32-Core Scalable Xeon Processor |
Dual 12, 16, 20, 26, 32-Core Scalable Xeon Processors |
|
System Memory |
32GB, 64GB, 128GB, 256GB, 384GB, 512GB, 768GB, 1TB System Memory with Buffered Error Checking and Correction |
64GB, 128GB, 256GB, 384GB, 512GB, 768GB, 1TB, 1.5TB, 2TB System Memory with Buffered Error Checking and Correction |
|
Network |
Dual 10Gb RJ-45 Ports [Backwards Compatible with 1Gb] (Standard) | Optional Upgrade: Dual/Quad 1Gb/10Gb RJ-45, 10Gb SFP+, 25Gb SFP28, 40Gb QSFP+, 100Gb QSFP28. |
|
|
RAID Controller |
High-Performance 12Gb SAS Hardware RAID Controller with RAID Cache Flash Backup, Supports RAID Levels 0, 1, 5, 6, 10, 50 and 60, Supports up to 240 Total Drives via EBODs |
|
|
Supported Storage Drives |
10TB, 14TB, 16TB, 18TB, 20TB 7200RPM Enterprise 12Gb SAS Drive Pack, 960GB, 1.9TB, 3.8TB, 7.6TB, 15.3TB Enterprise 12Gb SSD Drive Pack (1x DWPD), 800GB, 1.6TB, 3.2TB, 6.4TB Enterprise 12Gb SSD Drive Pack (3x DWPD) |
|