Citrix XenServer™ is the only enterprise-class, cloud-proven virtualization platform that delivers the critical features of live migration and centralized multi-server management at no cost. XenServer is an open and powerful server virtualization solution that radically reduces datacenter costs by transforming static and complex datacenter environments into more dynamic, easy to manage IT service delivery centers.
By providing features like live migration, shared storage support, centralized multi-server management plus P2V and V2V conversion tools in the free version, XenServer enables any organization, no matter the size or budget, to immediately benefit from the power of server virtualization.
Citrix XenServer includes in it's free versions a Resilient Management Architecture. Unlike other management architectures, XenCenter distributes management data across servers in a resource pool to ensure there is no single point of management failure. If a management server should fail, any other server in the pool can take over the management role.
It is a quick installation to add Marathon Technologies everRun VM 5.0 to a XenServer 5.0 installation to create a Fault Tolerant Platform to host your virtualized Microsoft Server Applications on and includes selectable levels of protection without requiring Shared Storage.
You can even extend this Fault Tolerant Platfrom synchronously between two physical servers across distances of ~150 miles (10 ms latency and application latency is key to distance) using everRun SplitSite and/or establish Continuouse Protection and Disaster Recovery for local and remote sites with the everRun CDP/DR Solutions.
When you are ready, enhance the XenServer experience with advanced virtualization management by upgrading to (purchasing) Citrix Essentials for XenServer. This new solution helps customers transform virtualized datacenters into more dynamic delivery centers with capabilities like lab automation, dynamic provisioning, workflow orchestration and seamless integration with leading storage systems. Citrix Essentials for XenServer also provides High Availability for environments that have Shared Storage - You can Learn More about how this HA feature works here (XenServer can be easily configured with automated high-availability allowing virtual machines on a failed host to automatically restart on other physical servers in the resource pool according to priority and resource availability)
Learn more about the features you add with Essentials for XenServer editions here
Fault Tolerance by Marathon Technologies - XenServer is the only server virtualization offering that can easily be upgraded to offer fault-tolerant application availability resulting in zero-downtime failover capabilities for virtual machines.
Want to Learn More? Download the High Availability deep dive
Access the Fault Tolerance configuration reviews and demos here
-ToddCarterCISSP