Product : RightScale, RightScale/Current Enterprise, Enterprise
Feature : Live change VM resources, Reconfiguration & Expiration, IT Automation
Content Owner:  Ephraim Baron
Summary
VM resources can be changed on demand where it makes sense and is supported by the OS and underlying hypervisor / cloud platform
Details
Items like add/remove storage or IP addresses can be done w/o reboots Changing things like the Instance Type of an instance require a reboot or deployment of a new instance.