Patent ID: 7577865
Filing Date: 2009-08-18
Classification: G06F

Abstract:
1. A network, comprising: a first host node; a second host node; a first storage enclosure coupled to the first host node and the second host node, wherein the storage enclosure includes a first interface controller coupled to the first host node and a second interface controller coupled to the second host node, and wherein the first host node is able to communicate with the second host node through either the first interface controller or the second interface controller of the storage enclosure; a shared storage space within the first storage enclosure, wherein the shared storage space is accessible to the first interface controller and the second interface controller of the first storage enclosure; wherein, in the event of a failure in the communications link, the first host node is able to pass configuration information to the second host node by storing the configuration information in the shared storage space of the first storage enclosure; and wherein the first host node is operable, after saving configuration information to the shared storage, to cause the second host node to enter a state in which the second host node cannot read or write to the shared storage without first recognizing the configuration information saved by the first host node to the shared storage.