vRealize Business for Cloud can scale up to 20,000 virtual machines (including live and deleted) across ten VMware vCenter Server instances. The vRealize Business for Cloud server requires a minimum of 50 GB of disk space, 8 GB memory, and 4 vCPU. If you are deploying only the remote data collector, without the vRealize Business for Cloud server, you can reduce the memory size to 2GB (Properties > Hardware tab).