1. A method comprising: allocating a node of a plurality of nodes, in a hosting system, for hosting a virtual machine; retrieving data, by the node, that represents a computer system, the data comprising a plurality of sections and a plurality of checksums corresponding to the plurality of sections; validating the plurality of sections using the plurality of checksums; copying the plurality of sections onto a disk volume of the node to deploy the computer system on the node; and configuring the computer system to operate as the virtual machine by configuring information specific to an instantiation of the computer system.