Patent ID: 6493796
Filing Date: 2002-12-10
Classification: G06F

Abstract:
A method for use in a data mirroring system comprising at least one host, at least one source storage system, and at least one target storage system, wherein the at least one source storage system includes at least first and second source storage devices, and the at least one target storage system includes at least first and second target storage devices, wherein the at least one host is coupled to the at least one source storage system to perform write operations to the first and second source storage devices, and wherein the at least one source storage system is coupled to the at least one target storage system to enable mirroring communication from the first source storage device to the first target storage device and from the second source storage device to the second target storage device, the method comprising a step of:(A) when mirroring communication from the first source storage device to the first target storage device is disabled, disabling mirroring communication from the second source storage device to the second target storage device.