The Extractor detected that the specified block has an invalid checksum value. The backup set container that contains the specified file might be corrupted.
Verify that the configuration of the Oracle source and archived redo log location is correct. Also ensure that the specified locations contain only backup set containers or redo logs. If the problem persists, contact Informatica Global Customer Support for assistance. Provide the backup set container file that contains the specified redo log, if possible.