Patent ID: 7958398
Filing Date: 2011-06-07
Classification: G06F

Abstract:
1. A method for generating reference state information in a virtualized system, wherein the reference state information is utilized to determine when the booting sequence for a computing system ends, the method comprises comprising: during the booting stage of a computing system, over which one or more virtual machines are hosted, utilizing a hypervisor running on the computing system to monitor a sequence of block identifiers accessed during the booting stage, generating reference state information in response to the hypervisor determining that the booting of the computing system has been completed, based on results generated from the hypervisor comparing the first sequence of block identifiers with the second sequence of block identifiers, wherein the generated reference state information replaces the reference state information generated during the previous booting process, wherein the reference state information includes state information about virtual machines running on the computing system at a stage immediately after the booting process is completed, as opposed to state information about the virtual machines running on the computing system before the computing system is shutdown.