Checksum value, which can be one of the following:
0 = checksum option is disabled.
1= the checksum is calculated by the Teradata Database.
2 = the checksum is verified by Teradata ARC during ARCHIVE, and by both Teradata ARC and Teradata Database during RESTORE.
CHECKSUM can also be used with the ANALYZE statement. If the VALIDATE option is used with ANALYZE, Teradata ARC validates the checksum for each data block in the archive.