Patent ID: 8060683

Claim:
A method for managing virtual machines, said method comprising the steps of: a first virtual machine being operational and requesting to attach to a cache, and in response, attaching said first virtual machine to said cache, and recording that said first virtual machine is assigned to said cache; a second virtual machine being operational and requesting to attach to said cache, and in response, attaching said second virtual machine to said cache, and recording that said second virtual machine is assigned to said cache; subsequently, said first virtual machine ceasing to operate due to failure of said first virtual machine while said second virtual machine is operational, and in response, determining that a virtual machine is operational and attached to said cache, and in response, preserving said cache; and subsequently, resuming operation of said first virtual machine, and in response, determining from said record that said first virtual machine is assigned to said cache and reattaching said first virtual machine to said cache.