Abstract: A storage controller stores a virtual machine identifier of a virtual machine of a hypervisor, where a storage from the storage controller has been allocated for a datastore of the virtual machine of the hypervisor. In response to receiving, by the storage controller, a request for an input/output operation on the storage that has been allocated, the storage controller determines whether the request includes the virtual machine identifier stored in the storage controller. In response to determining that the request does not include the virtual machine identifier stored in the storage controller, the storage controller prevents the input/output operation from being executed on the storage that has been allocated.

Abstract: A command is received from a first computer. The command is to transfer a data from the first computer to a second computer. One or more ports of the second computer are determined that are available for the data transfer. A ranking is determined for the one or more ports. The first computer is notified of one or more data transfer ports of the one or more ports. The one or more data transfer ports are above a threshold in the determined ranking.