Patent ID: 8032781

Claim:
A storage system, comprising: a first server owning interconnected first storage devices and a second server owning interconnected second storage devices, the first server and the second server being connected together by a cluster interconnect; a coredump function executed on the first server, where the coredump function is configured to cause the first server to write a memory to a coredump storage device chosen from one of the first storage devices in response to detection of a failure of the first server, each of the first storage devices including a coredump attribute, and further configured to cause the coredump attribute of the coredump storage device to be set to a coredump state and the coredump attribute of each of the first storage devices other than the coredump storage device to be set to a non-coredump state; and a takeover function executed on the second server, where the takeover function is configured to identify each of the first storage devices with the coredump attribute set to the non-coredump state, and further configured to change, each of the first storage devices having the coredump attribute set to the non-coredump state, from ownership by the first server to ownership by the second server so that takeover of ownership can proceed in parallel with writing of the memory to the coredump storage device.