Patent ID: 8996913
Filing Date: 2015-03-31
Classification: G06F

Abstract:
1. A data transfer control apparatus which is capable of accepting, during data transfer, an activation request for a subsequent data transfer and a parameter setting used for data transfer, and which processes, in a set order, a plurality of activation requests made by a host system, the data transfer control apparatus comprising: a backup control section that temporarily backs up a plurality of parameters in a backup resource; a data processing section that performs an error detection process on transferred data; a restoration control section that restores, from the backup resource and as a parameter for subsequent data transfers, a parameter used to transfer data for which the processing result of the error detection process is an error; and a completion notification control section that withholds a completion notification to the host system indicating, with respect to the plurality of parameters, that a data transfer using each parameter has been completed successfully, the completion notification being withheld until a data transfer using a parameter for which the set order precedes that of the each parameter is completed successfully, wherein the parameter includes information indicating whether the error detection process has been carried out on data transferred using the parameter.