During the copy to destination step of the archive or retirement project, the validation process calculates a checksum value for each row in every table in the entity.
The process writes the row checksum values to a BCP file that appends the values to the end of each row. The process appends the checksum values as a metadata column that is copied to the Data Vault along with the table. When the Data Vault loader is finished, Data Vault calculates a second checksum value for each row in the archived or retired tables.
The validation process then compares the checksum value written to the BCP file to the checksum value calculated by Data Vault. When the checksum comparison is complete, review the validation for any deviations that occur between the two checksum values for each row.