Solution : https://service.sap.com/sap/support/notes/769476 (SAP Service marketplace login required)
Key words :
terms r3load error import wrong checksum invalid data reason, wrong checksum - invalid data, bufferdb independent control file, <export_directory>/data/sap<tabart>, 001<export_directory>/data/sap<tabart>, nfs-mounted file systems, simply correct export errors, nfs-mounted export directory, previous export log file, <installation_directory>/sap<tabart>
Related Notes :
118059 | Storage parameter for system copy with R3load |