Patent ID: 7698700
Filing Date: 2010-04-13
Classification: G06F

Abstract:
1. A method for applying a concurrent update to a logical partitioning operating system while the logical partitioning operating system is running in an environment including a plurality of processors executing a plurality of tasks, comprising: (a) notifying the logical partitioning operating system the concurrent update is available; (b) determining if each task impacted by the concurrent update has reached a quiesced state, wherein determining if each task impacted by the concurrent update is in a quiesced state comprises: (c) determining if each processor is in an identifiable quiesced state; and (d) applying the concurrent update to the logical partitioning operating system while the logical partitioning operating system is running only if it is determined for all tasks and processors, that each task impacted by the concurrent update has reached a quiesced state and that each processor is in an identifiable quiesced state, so that all the processors and the tasks impacted by the concurrent update remain in the quiesced state during application of the concurrent update, wherein applying the concurrent update to the logical partitioning operating system comprises: