In this presentation, Rohit and Abhinandan will review issues with current CloudStack fencing mechanisms and high availability feature. They will discuss new features developed for CloudStack, namely OOBM (out-of-band management) that allows for power management of the hosts and Host-HA that provides reliable mechanisms for investigation, recovery and fencing of a host. In the presentation, the speakers (also authors of the features) will demonstrate the features, discuss their design and implementation, and how they allow for reliable recovery/fencing of the host and host power management.