Managing the writing of a dataset by initiating a first computer-implemented process to write a plurality of portions of a dataset to a corresponding plurality of data storage locations on at least one data storage device, identifying a request made by a second computer-implemented process to write data to one of the data storage locations before the first computer-implemented process has finished writing all of the portions of the dataset to all of the data storage locations, and excluding the data storage location associated with the request from future writes by the first computer-implemented process of any portion of the dataset.