Server computer management system for supporting highly available virtual desktops of multiple different tenants

A computer system supporting virtual desktops on server computers for access by remote user computers, comprising:

• a plurality of server computers interconnected on a service provider computer network;
• each server computer comprising computing resources, including at least processing units and memory, configured to support a plurality of virtual desktops utilizing the computing resources;
• a service provider resource manager, comprising a computer connected to the server provider computer network configured by computer program instructions;
• for each tenant of a plurality of tenants, a tenant computer network for the tenant and a data store for the tenant;
• wherein the service provider resource manager is configured to:
• store data for each tenant indicating server computers allocated to the tenant from among the plurality of server computers;
• dynamically allocate a selected server computer from among the plurality of server computers to a tenant, by:
• connecting the tenant computer network and the data store of the tenant to the selected server computer;
• starting, as tenant virtual machines, copies of a process based on a gold image virtual machine for the tenant on the selected server computer;
• storing data defining a gold image virtual disk, corresponding to the gold image virtual machine, in the data store for the tenant;
• associating the tenant virtual machines with virtual disks which comprises a linked clone based on the gold image virtual disk;
• adding the tenant virtual machines to the tenant computer network of the tenant.