Licensing of Starwind VSAN and VTL products
StarWind Virtual SAN
StarWind Virtual SAN® is a 100% software-based storage solution for commercially available popular hypervisors that can be deployed, either as an application or VM. You can check the system requirements on the vendor's website:
StarWind Virtual SAN completely eliminates the need for an expensive SAN, network of NAS devices or other shared storage. It can be used in hyperconverged configurations (compute and storage layers run on the same physical servers) or compute layer separated from storage layer (compute and storage layers run on separate physical servers) in Microsoft Scale-Out File Servers,SMB 3.0, VMware, and XEN environments.
StarWind Virtual SAN provides functionality available in enterprise solutions, such as min:
- Synchronous replication/High Availability (HA) with an unlimited number of nodes to ensure scalability.
- Asynchronous replication/WAN.
- Log Structured File System (LSFS) - a special file system that ensures data consistency under all conditions.
- Snapshots (snapshot copies) /Snapshots without server load (offloaded).
- On-the-fly data deduplication.
- Caching at the L1 AND L2 level, RAM and SSD.
- Hyperconverged and dedicated storage infrastructure
StarWind® Virtual Tape Library (VTL).
StarWind VTL allows companies to eliminate the costly process of backup to tape while meeting regulatory requirements for data storage and archiving using an on-premises virtual VTL library, with the ability to push data to the cloud (object storage layer). Protects backup data from threats by storing it on ransomware-resistant virtual tapes. Replicates and pushes backups to AWS, Azure or other public cloud maximizing security and storage cost efficiency. Local storage scaling can be achieved by using any array with object storage.

VTL for SMEs
VTL for SMBs (Small Medium Enterprises) targets organizations that want to leverage cloud storage to automate backup and archiving processes. VTL automates and replaces manual DR tape shipping and extends an existing DR plan by offering both replication and tiering. StarWind can also help migrate data to the cloud with hardware data migration tools such as AWS Snowball or Backblaze Fireball.

VTL for businesses
VTL for enterprises is suitable for organizations that want to use both physical storage and cloud storage to automate backup, archiving and media management. In this case, VTL provides cost-effective closed-air storage for media assets that need to be stored on-site/locally. For backups and archives, VTL automates and replaces manual DR tape shipping and extends an existing DR plan by offering replication and tiering and cloud storage. StarWind can also help migrate data to the cloud with a data migration solution from a cloud provider of your choice.

VTL for service providers
In this case, VTL allows service providers to offer as a service tape archiving (TaaS), data storage (RaaS) and backup (BaaS) using the cloud and object storage instead of physical LTO tape. Service provider licensing offers a convenient payment system for individual users. In addition, customer data migration services are provided free of charge.
StarWind Product Licensing:
StarWind Virtual SAN®
StarWind Virtual SAN® Standard Edition
Designed for the medium and small business sector and Remote Offices/Branch Offices (ROBO). The license allows you to create up to 5TB of synchronously replicated volumes on each node, as well as create individual volumes (not HA) with unlimited capacity. The license is for 1 node, and the number of nodes is unlimited. The license includes 1 year of standard annual support (ASM).
StarWind Virtual SAN® Professional Edition
Designed for the medium and small business sector and Remote Offices/Branch Offices (ROBO) expanding their infrastructure towards enterprise solutions. The license allows the creation of up to 10TB of highly available storage on each node. The number of nodes is unlimited. The license is for 1 node with a minimum number of nodes equal to 2. The license includes 1 year of standard annual support (ASM).
StarWind Virtual SAN® Enterprise Edition
The license is for 1 node with a minimum number of nodes equal to 2. The number of nodes is unlimited. The license allows you to create up to 20TB of highly available storage on each node. The license includes 1 year of standard annual support (ASM).
StarWind Virtual SAN® Unlimited Edition
This is the highest version of the license. The license is for 1 node with a minimum number of nodes equal to 2. The number of nodes is unlimited. It includes 1 year of standard annual support (ASM). The license allows you to use on any unlimited capacity of highly available storage.