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  • StarWind Virtual SAN®

StarWind Virtual SAN®

StarWind Virtual SAN Video For SMB, ROBO, Cloud and Hosting providers, who look to cut down virtualization expenses, both CapEx and OpEx, and optimize ROI, our solution is StarWind Virtual SAN (VSAN). It is software that eliminates any need in physical shared storage by basically “mirroring” internal hard disks and flash between servers. CapEx is reduced because no expensive hardware purchased. OpEx is reduced because no expensive hardware is maintained. ROI is optimized because existing hardware is used with maximum efficiency.

StarWind Virtual SAN targets those, who already have a set of hardware or are bound to a particular hardware-vendor. In case there is a new virtualization infrastructure to be built from scratch, there is a turnkey solution StarWind HyperConverged Appliance. It is an all-in-one product, complete with hardware and software, powered by StarWind Virtual SAN.


Unlike VMware Virtual SAN, our solution starts with two nodes and can be installed on exactly as many nodes as needed. It will work on less hardware, accepts inexpensive commodity components and offers flexible licensing, cutting down CapEx and OpEx.

Unlike Microsoft Storage Spaces (Shared Nothing) and Scale-Out File Server, our solution supports Hyper-Converged model and does Shared Nothing with two nodes. It requires less hardware to buy and maintain, thus reducing TCO.

Unlike open source solutions, ours runs inside hypervisor and is completely in-house developed. It is supported by StarWind and is eligible for Microsoft and VMware support services as well.

Unlike traditional SAN and NAS, our solution has ability to run hardware-less, has perpetual licenses and provides no hardware lock-in. It is superior to hardware solutions in every way, being less expensive, more convenient and better performing.

Full differentiation of StarWind Virtual SAN can be found here.


Lower Cost of Ownership
StarWind Virtual SAN cuts TCO at least in half, meaning both Operational and Capital Expenditure. It eliminates the actual physical shared storage, corresponding infrastructure, associated deployment and maintenance activities. StarWind VSAN works on commodity hardware, so there’s not only less hardware to purchase and maintain, but also the components are inexpensive.
Operational Simplicity
Simplicity is a key feature. StarWind Virtual SAN runs as a native hypervisor component or in VM, and it does not require any deep storage and network administration or UNIX management skills. A typical system administrator with minimal experience in Hyper-V, VMware or Windows can install, configure and maintain VSAN operations.
High Performance
Performance is uncompromised by the minimalistic hardware footprint, reduced deployment and management costs. StarWind Virtual SAN brings to the table server-side flash and RAM caches, log-structuring and an absolutely minimalistic I/O path. The resulting performance is unmatched by either typical virtual appliances or physical shared storage.



Virtual SAN is a natural part of the hypervisor. The result is both outstanding performance and unified administration using hypervisor-specific management tools. VSAN “gets the job done” with all major virtualization platforms running on Hyper-V and Windows as a native application and on vSphere or Xen nested inside a VM. Non-virtualized clusters typically deployed for performance-intensive SQL Server and Exchange installations are also fully supported. Learn More
StarWind Virtual SAN Hyper-Converged Architecture

Compute and Storage

StarWind Virtual SAN can also run on a dedicated set of hosts creating a separated storage layer being used by consumers. Though a hyper-converged scenario is an industry trend now, the differentiation of compute and storage layers makes sense if there’s need to grow by capacity only. Typical use cases are shared storage for huge clustered SQL Server and Oracle deployments and an inexpensive block back-end for Scale-Out File Servers. Learn More
StarWind Virtual SAN Compute and Storage Separated Scenario

VM-Centric Storage and StarWind Log-Structured File System (LSFS)

Virtual SAN provisions and manages storage with VM workload in mind. General-purpose storage arrays are usually the best candidates to serve hypervisors. VSAN uses Log-Structured File System and sophisticated caching in order to avoid as much of a random I/O dominating VM world as possible but still without deploying extremely expensive and cost-inefficient all-flash model. Learn More
Virtual SAN reduces I/O latency and eliminates much of the network traffic to an absolute minimum by utilizing distributed RAM and flash-based caches. Performance is drastically improved. Caches are kept coherent between multiple hosts so that a lightning-fast write back policy is safe and achievable with commodity hardware. Learn More
Virtual SAN basically “mirrors” the actual storage and caches between the given numbers of hosts creating a fault-tolerant storage pool. It is completely up to the system administrator as to how many replicas of a particular VM or LUN are kept alive and how many active storage controllers a cluster should use. Individual disks, memory modules, whole compute and storage hosts can fail but uptime is never compromised. Learn More
StarWind Virtual SAN flexibly adopts both Scale-Up and Scale-Out architectures. Capacity can be increased by simply throwing more spindles into the existing storage cluster node. Bringing in a new host with its own CPU, RAM and internal storage can scale storage capacity, I/O performance and VM number crunching facilities out. Learn More
StarWind Virtual SAN utilizes inexpensive commodity hardware. “Magic” happens with the help of proprietary in-house developed software and general-purpose x64 servers, MLC flash, spinning disks and Ethernet. VSAN can definitely take care of higher-performing SAS, more reliable SLC flash and a faster 10 or 40/56 GbE network but all of that “higher league” gear is fully optional. Learn More
Virtual SAN comes with an effective mechanism to ensure that the mission-critical business data is replicated to a disaster recovery site. Replication is implemented to be asynchronous, background, deduplication, and compression-aware as well as snapshot-based. Primary I/O operations do not suffer from leaned resources and WAN channel requirements being sparse. Learn More
StarWind Virtual SAN implements inter-node tiering technology to offload cold data such as snapshots from fast and expensive primary storage to slower but inexpensive secondary storage. The combined result allows the use of a much smaller amount of flash as primary tier with cheap spindles as a secondary tier. Learn More
StarWind Virtual SAN implements VM and flash-friendly space reduction technologies such as in-line deduplication and compression. The result increases usable capacity of all-flash configurations, boosts I/O performance as more data can be pinpointed to now virtually “bigger” deduplicated caches and also prolongs flash life since the amount of write operations is dramatically reduced. Learn More
Special version of StarWind Virtual SAN, promptly deployed from a pre-configured VMware/Hyper-V compatible VM appliance installs on existing hardware shared with hypervisor automatically without any manual adjustments, requiring no specialized knowledge from the IT team. This version is testing-ready, but being VM-based it will need some tinkering from StarWind engineers for a clearer performance evaluation. Learn More
StarWind VSAN does VTL allowing the use of a fast spinning disks to emulate traditional physical tape drives, auto-loaders and libraries. The demand on this technology is driven by the fact that tape drives are very relevant, cost-effective and designed to store data for a long period of time. Lots of companies fall under regulatory requirements insisting on tapes with company data being vaulted. Virtual Tape Library allows seamless integration into existing backup infrastructure without the need to break it up. Disk-to-Disk-to-Tape backup provides a smaller backup window compared to traditional Disk-to-Tape scenario and gives better reliability because an intermediary copy of all backup data is stored in an extra location which is a spinning disk. Learn More

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