Patent ID: 9304870
Filing Date: 2016-04-05
CPC Classification: G06F

Claim Text:
1. A method for copying data from a first storage to a second storage, comprising: performing a first copy operation to copy source data from the first storage to a first data copy 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 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 data from the first data copy in the second storage to a second data copy in response to determining that the first data copy is not in the state that does not permit the copying; and denying the request in response to determining that the first data copy is in the state that does not permit copying.