Patent ID: 8555105
Filing Date: 2013-10-08
Classification: G06F

Abstract:
1. A method of fallover, comprising: providing a cluster that includes at least first and second information handling systems (IHSs) coupled together by a network bus, the first IHS including first and second applications, the first IHS including a first high availability cluster manager (HACM), the second IHS including a second HACM, the cluster further including a shared storage that communicates with the first and second IHSs to store IHS state information therefrom, the shared storage communicating with the first and second HACMs; dumping, by the first IHS, first IHS state information to the shared storage for storage therein in response to a first IHS failure, wherein the first IHS failure is an application failure; detecting, by the second HACM, the first IHS failure, wherein the first IHS failure is an application failure; accessing most recent first IHS state information from the shared storage, by the second HACM, in response to the first IHS failure, wherein the first IHS failure is an application failure; deriving, by the second HACM, from the most recent first IHS state information a process trace for a failed process executing in the first IHS at the time of first IHS failure, wherein the first IHS failure is an application failure; and determining, by the second HACM, one of the first and second applications in the first IHS as being a closest fit match to the process trace, wherein the determining includes analyzing, by the second HACM, a hierarchy of child processes and parent processes in the process trace for the failed process to determine one of the first and second applications in the first IHS as being a closest fit match to the process trace, thus identifying a particular failed application in the first IHS as the first IHS failure, wherein the first IHS failure is an application failure.