1. A system for restoring execution of a virtual machine, based on coordination with a virtual-machine-file-relocation operation, the system comprising: a first computing device, which comprises at least one processor and corresponding computer memory, and which is configured to execute the virtual machine and which is further configured to also execute the virtual-machine-file-relocation operation, wherein the virtual-machine-file-relocation operation comprises a logical transfer, based on a relocation sequence, of a backup copy of data associated with the virtual machine to a primary storage device in communication with the first computing device, and wherein the backup copy comprises at least one of a configuration file and a virtual disk associated with the virtual machine; a second computing device in communication with the first computing device, wherein the second computing device comprises at least one processor and corresponding computer memory, a read-cache, and a shared file system that is mounted to the first computing device, wherein the shared file system is configured as a recovery point for the virtual machine and as a source of data for the virtual-machine-file-relocation operation, and wherein the second computing device executes a media agent; a secondary storage device in communication with the second computing device, wherein the secondary storage device comprises the backup copy of data associated with the virtual machine; wherein the media agent is configured to: copy from the backup copy to the read-cache a first set of data blocks, based on a profile of the virtual machine that pertains to launch of execution of the virtual machine on the first computing device, copy from the backup copy to the read-cache a second set of data blocks, based on the relocation sequence of the virtual-machine-file-relocation operation, and serve a read request for a data block issued by the virtual machine by: (i) copying the requested data block from the backup copy to the read-cache if the requested data block is not found in the read-cache, and (ii) transmitting the requested data block from the read-cache in response to the read request.