Remove the need for a costly physical SAN

What is SvSAN?

SvSAN is the virtual SAN solution which enables simple and affordable hyperconverged infrastructure without compromising on reliability and performance

SvSAN is a software-defined storage solution designed to deliver hyperconverged compute and storage infrastructure with two or more low-cost servers. It is uniquely optimized for cost-effective, multi-site data management, enabling continuous, high-speed data access for business-critical applications.

Eliminating the need for physical SANs, removing the worry of downtime for business-critical applications and significantly lowers IT operating and acquisition cost. SMEs and large organizations across 72 countries have already chosen SvSAN to modernize their IT infrastructure.

This robust software product, designed for the realities of poor network reliability often found in remote areas, and it delivers highly-available hyperconverged infrastructure, even when networks have long latencies and limited throughput.

What is supported?

SvSAN supports the industry leading hypervisors, VMware vSphere and Microsoft Hyper-V. It is installed as a Virtual Storage Appliance (VSA) requiring minimal server resources to provide the shared storage necessary to enable the advanced hypervisor features such as High-Availability/Failover Cluster, vMotion/Live Migration and VMware® Distributed Resource Scheduler (DRS)/Dynamic Optimization.

SvSAN can be deployed easily with the flexibility to meet changing capacity and performance needs. This is achieved by adding additional capacity to existing servers or by growing the SvSAN cluster, without impacting service availability. A typical 2-node SvSAN configuration is shown below:


SvSAN simplifies and minimizes the IT footprint required to provide shared storage, reducing the total cost of ownership (TCO) for the virtual server environment.

A single remote witness for up to 1,000 sites is all that is needed. Alternative solutions require 1 for each site.

SvSAN requires 512MBs per remote witness. Alternative solutions require up to 8GBs. With 1,000 sites, that's 16,000 times more memory. SvSAN requires 9Kbps per mirrored data store. Alternatives require up to 2.7Mbps. Requiring 2GB per host when using SSD caching.

Alternatives require 32 GB per host. The SvSAN remote witness, which prevents data corruption, can tolerate latencies of up to 3000ms and so can be located anywhere in the world.

Available in two versions, Standard and Advanced, and in multiple capacity increments of 2TB, 6TB, 12TB and Unlimited TB.

Key Features SvSAN:

Synchronous mirroring

To protect against hardware failures and to ensure service uptime

Stretched clusters

To increase service resiliency with geographically distributed SvSAN VSA nodes


To guarantee service uptime and eliminate single points of failure

iSCSI target

To provide multi-ported, active-active, block-based storage

SSD read/write caching*

To enable hybrid storage configurations combining the performance of SSDs with the capacity of HDDs

Memory-based read caching*

To deliver blazing fast performance for most common reads, using a variety of modes: most frequently used, read ahead and data pinning

Intelligent auto-tiering*

To dynamically move data between storage tiers depending on frequency of access

VSA restore*

To enable rapid recovery of SvSAN VSA following a hardware failure and reduce the time to return storage to its optimal state

Target migration

To enable transparent and non-disruptive movement of targets between available SvSAN resources

I/O performance statistics*

To put I/O statistics at your finger-tips and better understand your workloads

Centralized monitoring and management

To simplify storage administration allowing you to monitor & manage SvSAN VSAs remotely from a single location

VMware vSphere storage APIs - array integration (VAAI) support*

To accelerate VMware I/O operations by offloading them to SvSAN:

Multiple VSA GUI deployment & upgrade*

To deploy and upgrade multiple VSAs through a single wizard

PowerShell auto-script generation*

Automatically generate a custom PowerShell script for deployments and upgrades

  • Atomic test and set - an enhanced locking mechanism designed to replace the use of SCSI reservations on VMFS volumes
  • Write same - offload block zeroing of virtual disks

*Features available in SvSAN 6.1 in Q1 2017

Robust; any site any network

Data & operations protected

No single point of failure
Local and stretched cluster capable
Split-brain risk eliminated

 Proven at IT edge & datacenter

Any environment, any location
Supports mission critical applications
Tolerates poor, unreliable networks

 Enterprise-class management

Integrates with standard tools
Automated script generation
Designed for use by any IT professional

Cost effective; lightest footprint, lowest cost

No more physical SANs

Converge compute and storage
Utilize power of commodity servers
Eliminate storage networking components

Lowest CAPEX

Start with only 2 servers - existing or new
Significantly less CPU and memory
One lightweight quorum for all clusters

Lowest OPEX

Reduced power, cooling and spares
Lower costs with centralized management
Eliminate planned and unplanned downtime

Flexible; today's needs, future proofed

Performance and scale

Leverage any CPU and storage type
Active/Active synchronous mirroring
Scale-up performance with 2 node cluster

Build-your-own hyperconverged

Eliminate appliance overprovisioning
Configure to precise IOPS & capacity
Auto-tier across memory, SSD and HDD

Flexibility and growth

Hyperconverged or storage-only
Hypervisor and server agnostic
Non-disruptive HW & SW upgrades

For effortless high-availability

High-availability infrastructure does more than prevent downtime from component failures. It enables non-disruptive application and hardware upgrades, non-disruptive maintenance, and decreases the requirement for high-cost emergency support service. SvSAN delivers highly-available storage without the need for an external storage area network.

Start with only two servers

Most high-availability systems require three or more on-premises components. SvSAN enables high-availability with as few as two on-premises servers and eliminates the need for an external RAID array or SAN, but can easily and cost-effectively scale to meet changing capacity and performance requirements.

Eliminate emergency support calls

Without high-availability, hardware failures are at a minimum a disruption and could be catastrophic. With high-availability, applications continue to operate, even if individual components such as a server, a disk drive, or a WAN connection fail. Component failures can be dealt with as non-emergency events, reducing support costs and increasing productivity.

Non-disruptive software maintenance and patch management

Software upgrades and patch management are major challenges for IT staff, often requiring late nights and weekend work. It's not uncommon to delay updates, due to scheduling challenges and limited staff. Patches and upgrades are critical to closing security vulnerabilities, however. With SvSAN and the advanced functions of the hypervisors under which SvSAN operates, software upgrades and patch management can be scheduled as an unattended, non-disruptive, scripted process, even while applications are in production.

Example 1

High-availability and virtualized infrastructure for the German Army

The German Army needed military-grade, highly-available storage for mobile units, that support operational control and battlefield communications during training exercises and missions. The Army chose SvSAN, which they said was the only solution on the market that fit their needs.

Example 2

Auto leasing and finance firm needed to eliminate downtime from software maintenance

Frequent software updates and security patch management were interfering with the credit-approval process for a nation-wide auto leasing and finance company. By implementing SvSAN, the company could enable advanced hypervisor functions that kept the credit approval process going, even as software updates and security patches were applied.

What StorMagic SvSAN delivers

SvSAN enables hyperconverged, highly-available, high-performance compute and storage infrastructure on low-cost servers. StorMagic's easy-to-use virtual SAN converts internal disk, flash and memory of two or more servers into a robust, shared-storage appliance, thereby removing the need for a separate external storage array. By converging compute and storage into a single, hardware-agnostic platform, organizations gain unprecedented flexibility, efficiency and performance, while simplifying management and support and driving down OPEX and CAPEX.

“We needed a cost-effective solution with data replication features, allowing us to access and share critical data at all times... We found StorMagic SvSAN a good solution with an attractive price.”

Antoine Lagarde | Senior IT Technician | Centre Hospitalier Pierre Oudot

The developer of a next-generation oil rig management platform needed a way to deliver high-availability for its decision support system. Its customers had no on-rig IT staff, but up-time was critical. StorMagic SvSAN enabled highly-available local storage for real-time analysis of oil rig sensor data, while eliminating the need to send an emergency repair crew in the event of a hardware failure.

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