High Availability (HA) for XenServer - HA-Lizard
Free Open Source High Availability Software for Citrix Xenserver.
The leader in High Availability for two node pools utilizing internal hard drives instead of Network Attached Storage. The latest version includes auto installer for easy installation as described in this video.
HA-lizard provides complete automation for managing Xen server pools which utilize the XAPI management interface and toolstack (as in Xen Cloud Platform and XenServer). The software suite provides complete HA features within a given pool. The overall design is intended to be lightweight with no compromise of system stability. Traditional cluster management suites are not required. HA is provided with built in logic for detecting and recovering failed services and hosts.