发明名称 Detecting Loss of Data During Data Transfer Between Information Devices
摘要 A mechanism is provided for detecting data loss in transfer data between a first information device and a second information device. The second information device receives transfer data sent by an application of the first information device, the transfer data being segmented into pieces and, for each segmented data piece, there is a write hash value, k hash value is generated for the segmented data piece that has been received, and the generated hash value is stored in the dedicated buffer in the second information device as a read hash value. The write hash value and the read hash value are compared and, when the write hash value associated with the segmented data piece and the read hash value of the segmented data piece do not match, it is determined that data has been lost from the transfer data at a time of transfer of the segmented data piece.
申请公布号 US2014331091(A1) 申请公布日期 2014.11.06
申请号 US201214361982 申请日期 2012.10.03
申请人 International Business Machines Corporation 发明人 Murakami Yoshikuni
分类号 G06F11/14 主分类号 G06F11/14
代理机构 代理人
主权项 1. A method of detecting data loss in transfer data between a first information device and a second information device, the method comprising: receiving, by a second processor in the second information device, the transfer data sent by an application of the first information device wherein the transfer data is segmented into pieces in a temporal transfer direction and wherein for each segmented data piece in the segmented pieces of data there is a write hash value, storing the received transfer data in a second buffer of the second information device, receiving the write hash value, and storing each write hash value for each segmented data piece in a dedicated buffer in the second information device by associating the write hash value with the segmented data piece included in the transfer data; reading, by the second processor in the second information device, the segmented data piece stored in the second buffer, generating a hash value for the segmented data piece, and storing the generated hash value in the dedicated buffer in the second information device as a read hash value; comparing, by the second processor in the second information device, the write hash value and the read hash value stored in the dedicated buffer; and determining, by the second processor in the second information device, that data has been lost from the transfer data at a time of transfer of the segmented data piece in a case where the write hash values-value associated with the segmented data piece and the read hash value of the segmented data piece do not match in the comparison.
地址 Armonk NY US