System and Method for Deploying Virtual Servers in a Hosting System

Some embodiments provide a method that, at a particular node of a hosting system that includes several nodes for hosting virtual machines, retrieves data representing a particular computer system from a storage. The data includes several sections and checksums for the sections. The method validates the sections by using the checksums. The method copies the sections of data onto a disk volume of the node that is allocated for a virtual machine in order to deploy the particular computer system. The method configures the particular computer system to operate as the virtual machine by configuring information specific to the particular instantiation of the particular computer system.