Application recovery from network-induced data corruption

A method of transferring a body of data from a source computer to a destination computer over a communications network, comprising:

• dividing the body of data into a plurality of padded data blocks, each of the plurality of padded data blocks including a data block, a data block identifier and a data block source error detection information;
• generating, by the source computer, the data block source error detection information for each padded data block of the plurality of padded data blocks;
• sending, by the source computer, the body of data as a plurality of padded data blocks to the destination computer over the communications network;
• upon receiving, by the destination computer, the body of data sent by the source computer:
• generating, by the destination computer, a data block destination error detection information for each padded data block;
• comparing, by the destination computer, the data block source error detection information with the corresponding data block destination error detection information;
• determining based on the comparing by the destination computer, a padded data block in the set of received padded data blocks is corrupt;
• requesting the source computer resend each padded data block of the body of data determined to have a corrupt data block identified by the data block identifier;
• and
• resending each data block requested to be resent by the source computer to the destination computer over the communications network in response to receiving the request to resend from the destination computer.

A computer system for transferring a set of padded data blocks from a source computer to a destination computer, comprising:

• a source computer having a source storage medium upon which a body of data stored;
• a destination computer having a destination storage medium;
• a communications network communicating data between the source computer and the destination computer;
• a set of executable instructions on the source computer operative to cause the source computer to:
• divide the body of data into the set of padded data blocks, each of the set of padded data blocks including a data block, a data block identifier and a data block source error detection information for a data block, wherein the data block source error detection information is generated by the source computer;
• send the set of padded data blocks to the destination computer over the communications network;
• a set of executable instructions on the destination computer operative to cause the destination computer to, upon receipt of all of the set of padded data blocks:
• receive the generated data block source error detection information from the source computer;
• compare the data block source error detection information with the corresponding data block destination error detection information;
• determine based on the comparing by the destination computer, a data block in the set of received padded data blocks is corrupt;
• request the source computer to resend each padded data block having a corrupt data block identified by the data block identifier after all of the plurality of padded data blocks have been received;
• and
• the set of executable instructions on the source computer further operative to cause the source computer to:
• resend each data block requested to be resent to the destination computer over the communications network in response to receiving the request to resend.