STATE COPYING METHOD FOR SOFTWARE UPDATE

摘要

To provide an approach to software update with scaleable disturbance there i s proposed a state copying method for a computation system with at least two logic partitions wherein a state of new software in a standby partition (6, 16) is updated to the state of old software in an executing partition (16, 6) while continuing execution of the old software. Data is transferred from the executing partition to the standby partition in a scaleable way and as soon as the same state is achiev ed for the standby partition (6, 16) and the executing partition (16, 6) the execution is switched to the new software. This allows to scale the degree of disturbance due to the software update to what is deemed suitable.