DxEnterprise Extended Vhosts for Stacked-Clustering: Optimized HA/DR for complete business resilience

Create a unified HA/DR environment

DxEnterprise enables organizations to optimize their SQL Server environment to create a unified high availability (HA) and disaster recovery (DR) environment for complete business resilience. With DxEnterprise, local HA can be combined with SQL Server Availability Groups (AGs) for remote date protection using Extended Vhosts (exVhosts) to reduce database system downtime and achieve true business continuity – And it can do so without the use of VPNs or other networking technologies. ExVhosts are specifically designed for running an AG across multiple HA instances. This gives users the ability to have HA on both the primary and secondary replicas for the AG while providing independent health monitoring and failovers of the HA instances and the AG. This advanced technology supports both Windows and Linux and includes support for AGs across mixed OS platforms.

Enhance Your SQL Server Environment

In a typical SQL Server HA/DR environment running on Windows, users generally turn to WSFC, a traditional clustering solution for Windows that is restrictive and can become extremely costly and difficult to manage as the number of servers and licenses add up. In a Linux-based environment, IT teams are forced to rely on combining other data replication solutions with HA SQL Server instances and VPNs for DR or implement a complex Pacemaker-based solution that requires separate clusters for HA instances and AGs, while also relying on VPNs for DR. In either scenario, costs quickly add up due to the high number of servers and licenses needed, along with the additional fees and hardware costs necessary to maintain VPNs. Not only that, but these alternative solutions are very complex to implement and maintain, lead to VPN security exposures, are difficult to scale and fail to meet organizations’ RTO and RPO requirements.

Before DxEnterprise:


DxE offers the ability to use Express Micro-Tunnel technology for connectivity between sites, eliminating the need for VPNs and all related costs while reducing overall lateral network attack surfaces. With DxE, there is no need to combine SQL Server instances with any additional replication technology and IT teams can rid their anxiety about SQL Server sprawl as HA instances and AGs can all reside in one single DxE cluster. Stack up additional savings with fewer servers and SQL Server licenses to fund.

After DxEnterprise:

Improve Database System Resilience

DxE uses Stacked-Clustering and optional Express Micro-Tunnel technology to boost SQL Server AG performance by 3x, significantly reducing downtime and the potential for database transaction losses. You get accelerated RPO and near-zero RTO for improved SQL Server database resilience. Use this built-in SDP tunneling technology to strengthen your security posture and get uninterrupted application connectivity for multi-site / multi-cloud network communication. You can rest assured your data will remain protected as it moves between isolated networks without using VPNs or opening any public ports. Organizations get access to the highest security for their SQL Server environment while surpassing their RTO and RPO requirements for reliable business continuity.