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Stonefly VSO Backup And Disaster Recovery Appliance

Scalable, Powerful and Cost Effective Appliance for Total Data Protection

An All-in-One Appliance Engineered for Data Protection

The VSO™ backup and DR appliance series is equipped with enterprise-level data protection software and features. The appliance provides unlimited scalability and is a perfect fit for Small-to-Medium Businesses (SMBs). Our VSO™ backup and DR appliances come in space-saving rack-mount and Tower servers that fit any infrastructure without affecting the existing slots.

What makes VSO™ appliances best in the market?

Limitless scalability and performance

StoneFly VSO™ appliances can be scaled-out or scaled-up as per your business needs. With the scalable performance and storage option, businesses can choose to add performance and storage with each node and scale-up or scale-out to Petabytes (PBs) of storage capacity

Cloud Connect Services

Built-in Cloud connect services allow users to migrate their workloads to numerous public clouds like Microsoft Azure, Amazon Web Services (AWS) and private clouds like StoneFly private cloud.


Engineered For Backup and disaster Recovery

StoneFly VSO™ appliances are purpose-built to protect your mission-critical applications and data. The appliance is compatible with most of the popular backup software like Veeam, Acronis, Commvault and others.

Virtualization Ready Appliance

StoneFly VSO™ backup and DR appliance is compatible with VMware ESX/ESXi, Microsoft Hyper-V and other popular hypervisors.

Highly Efficient Network

VSO™ backup and DR appliances support 10 GB network connections. (backward compatible with 1 GB)


Protocol Support

VSO™ backup and DR appliances support NAS (CIFS/NFS) and iSCSI standard industry protocols for network storage.


StoneFly has been manufacturing Backup and Storage Appliances for the last 17 years

StoneFly has been delivering full-featured backup and storage solutions since 2002. StoneFly’s backup solutions facilitate 500, 000 businesses worldwide. Our expertise enable us to come-up with customized solutions for businesses to ensure high availability, virtually no downtime and greater redundancy.


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Wide RAID Type Support

VSO backup and DR appliances support a wide range of RAID configurations. Each VSO backup and DR appliance comes with Erasure coding (supporting RAID 1, 5 and 6). For additional RAID configurations, users can opt to integrate RAID hardware controller and integrate RAID 0, 1, 5, 6 and 10.

Raid 0

Raid 1

Raid 5

Raid 10

Self-Heal – Ensuring Data Sync and Preventing Data Loss

If any segment in a volume is down and users modify the data within this segment, the automatic self-heal feature will make sure that the changes are not lost. Once the downed segment is restored, the self-heal feature will sync the changes made during the downtime.

Dispersed Volumes using Erasure Coding

StoneFly’s VSO appliances offer optional erasure coding. With erasure coding, you can create dispersed volumes and store them on more than one segment. You can also configure the priority of each data segment, differentiating between mission critical segments and non-critical segments.

Ransomware Protection

Ransomware can sneak through your Cyber-defenses and disrupt your business flow by encrypting all of your data. Worried? Don’t be. Our VSO™ appliances turn ransomware disaster into a mere inconvenience. StoneFly VSO™ backup and DR appliance uses snapshot and replication technology to deliver 1-click instant recovery so your IT environments can easily recover from ransomware.

Additional Backup and Disaster Recovery Features of VSO™ Appliances

Asynchronous Replication

Replicate to a remote site or to the cloud enabling off-site protection for enterprise Virtual Machines (VMs), backups, and mission-critical data in the event of a disaster.


Synchronous Replication (Campus Mirroring)

Real-time synchronous mirroring of Virtual and Physical Machines to a secondary VSO™ appliance enables users to have a full and identical copy of data for instant recovery whenever necessary.

Automated Snapshots

Create automatic snapshot schedules of one or more storage volumes and/or network shares. This allows for instant recovery back to a previous point in time to recover lost files or other data.

Granular and file-level backups

This feature enables users to selectively backup specific files and folders, or even network shares reducing the overall cost of backup and eliminating unnecessary bandwidth usage. The feature also optimizes backup and recovery by reducing the time needed to recover specific data.

Data Transportability

Data transportability via hot connect/disconnect of volumes and external appliances facilitates secure off-site storage and faster migration of large chunks of data to the appliance(s).

Encryption - before, during and after transit

VSO™ appliances protect important data with AES 256-bit encryption before and after transit while protecting data during transit with SSL/TLS tunneling.

Compatible with Industry leading Backup Software

StoneFly VSO™ backup and DR appliances are compatible with most popular backup software like Veeam, Acronis, Commvault and many more. This facilitates our customers to utilize the backup software they’re comfortable with while leveraging our innovative technology.


Complete list of sotwares

Configure Your VSO Appliance Now

With our online product configurator, users can build their own VSO™ appliance, download a quote or place an order online. We ship your appliance the same day we receive the order.
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Industry Compliant Backup Solution

With StoneFly VSO™ users can setup industry compliant backup solutions effortlessly. StoneFly customers can leverage our unique partnership with Microsoft Azure to setup their backups in Microsoft Azure Commercial or Government cloud.


FedRAMP is part of a set of security standards developed by the US government to make sure cloud services and products could protect federal and government data properly. FedRAMP comprises of a standardized approach to “Authorization, Security Assessment and continuous monitoring for Cloud services and products”. Learn More 


HIPAA defines rules and regulations for healthcare service providers that deal with patient data. These rules emphasize on data protection services for PHI (Protected Health Information) processed by healthtech infrastructure. HITRUST is a certifiable framework that synchronizes various other compliance frameworks such as HIPAA, PCI, ISO, NIST etc. Learn More


CJIS policy is developed by the Advisory Policy Board, comprising of people representing different states, and is enforced by the FBI CJIS (Criminal Justice Information Service) division. The policy describes rules pertaining to the data protection of federal data and Personally Identifiable Information (PII) stored and backed up in the cloud. Learn More

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