Handling host-related issues¶
A cloud server is a virtual server; it resides on a physical host. The physical host is designed with redundancies for power, network, and disk to prevent failures to the underlying virtual servers. It might sometimes be necessary to restart a physical host for maintenance or other issues. When it is practical to do so, virtual servers are not disrupted when their physical host is restarted
In many cases, a virtual server can be live-migrated away from its current physical host to a new one. Live migration to a new physical host is transparent to the running virtual server and transparent to users of the running virtual server. If a physical host is in a state where the virtual servers are down and live migration cannot be used, Rackspace sends regular communication until the virtual server in question is up and running.