公开(公告)号：GB2506177A

公开(公告)日：2014-03-26

申请号：GB201217027

申请日：2012-09-25

Applicant: IBM

Inventor： FONTIGNIE JACQUES ,  DRUET NICOLAS ,  QUELOZ PIERRE-ANTOINE ,  MARINELLI CLAUDIO ,  PICHETTI LUIGI

IPC: G06F11/20

Abstract: The application discloses methods for the live-migration of an operating system (OS) running an application. The OS and application run on a first computer system. The live-migration is performed to a second computer such that the application shows no externally detectable downtime during migration. A tracking tool is used to track and store data modifications to the storage system of the computer in a tracking file. On a shutdown of the first computer, the tracking tool continues to operate in a tracking mode and shuts down the first computer completely. The data modifications stored prior to the shutdown are sent to the second computer, which may then be started based on this data, followed by starting the application such that from an external perspective no application disruption is detectable.