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XcellHost's Layer 7 Load Balancing & Failover service enables organizations to replace their costly appliances with an enterprise-grade cloud-based solution.

Based on a global CDN, XcellHost supports all in-datacenter and cross-datacenter high availability scenarios.

XcellHost also provides real-time health monitoring and notifications to ensure that traffic is always routed to a viable web server.

Load Balancing & Failover

XcellHost supports a wide variety of load balancing methods to optimize traffic distribution across servers, maximizing application performance and reducing server load.

Users may choose from a range of sophisticated traffic distribution algorithms, with or without a "persistence override" option. Real-time server health and performance checks are used to rapidly detect outages and eliminate downtime. In the event of web server failure, XcellHost stops routing traffic to it. As soon as the web server resumes operation, traffic begins to be forwarded to it.

Data Center Failover(DR scenarios)

XcellHost's service supports automatic failover between primary and secondary sites to enable high availability and accelerate disaster recovery. As soon as XcellHost detects that the primary site has gone down, it automatically kick-starts your standby data center.

Global Server Load Balancing

Global Server Load Balancing (GSLB) for companies operating multiple data centers ensures high availability and consistent performance of applications and websites.

Leveraging a global CDN, XcellHost's service supports both performance-based GSLB (i.e., user is assigned to data center with the best connection time) and geography-based GSLB (i.e., user is assigned to data center according to his geographic location).

Health Monitoring and Notification

By monitoring the health and performance of your web servers and data centers in real-time, XcellHost ensures that your application or website is accessible to users at all times.

Built-in real-time monitoring and notification capabilities ensure that traffic is always routed to a viable web server. Web server monitoring is performed using the following mechanisms:

Passive Monitoring
According to responses from the web servers for actual traffic that is forwarded to them.

Verification Checks
Initiated only once the passive monitoring mechanism marks a server as being "down". Will be performed to user-defined URLs together with a user-defined expected response.

E-mail Alerts
Sent when servers or data centers are "down". The user defines in which scenarios to get the alerts.

Real-Time Dashboards

XcellHost allows you to monitor all your traffic in real time and verify that your traffic is optimatly balanced between all of the different servers and data center. Such high visibility enables data-driven decision making, empowering the operator with live, accurate and actionable information.

Real time monitoring also serves as an early warning system, allowing you to identify and resolve network issues as they occur - before they have an impact on your websites and web application performance.

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