Patent ID: 8990800
Filing Date: 2015-03-24
Classification: G06F

Abstract:
1. A method for increasing system availability in a virtualized information handling system including a hypervisor allowing multiple virtual machines to run on the virtualized information handling system, comprising: the hypervisor instantiating a virtual machine including an initiator client, the virtual machine being migrated from a previous information handling system (IHS); the hypervisor determining whether the virtualized information handling system was previously interfaced to an associated storage resource via an offload host bus adapter on the previous IHS; the hypervisor determining whether the virtualized information handling system was previously interfaced to an associated storage resource via another adapter other than an offload host bus adapter on the previous IHS; if the virtualized information handling system was previously interfaced to the associated storage resource via an offload host bus adapter, the hypervisor executing an adapter driver for the host bus adapter, the adapter driver for communicating input/output communications between the virtual machine and the associated storage resource via the offload host bus adapter; and if the virtualized information handling system was previously interfaced to the associated storage resource via another adapter other than an offload host bus adapter, the hypervisor executing an emulator, the emulator for emulating the functionality of the adapter driver for the host bus adapter and for communicating input/output communications between the virtual machine and the associated storage resource via the other adapter.