Patent ID: 9075762
Filing Date: 2015-07-07
Classification: G06F

Abstract:
1. A computer program product for copying data from a first storage to a second storage, wherein the computer program product comprises a non-transitory computer readable storage medium having computer readable program code embodied therein that executes to cause operations, the operations comprising: performing a first copy operation to copy source data from a first location in the first storage to a first data copy at a second location in the second storage; receiving a request to perform a second copy operation to copy requested data from the first data copy in the second storage to a second data copy, wherein the requested data comprises the first data copy of the first copy operation; determining whether the requested first data copy is in a state that does not permit copying in response to receiving the request; performing the second copy operation to copy the requested first data copy from the second storage to a second data copy in a third location external to the first storage in response to determining that the requested first data copy is not in the state that does not permit the copying; and denying the request in response to determining that the requested first data copy is in the state that does not permit copying.