/WRITE_CHECK /NOWRITE_CHECK (default) Reads each record in the output file after it is written to verify that the record copied successfully and that the file can be read subsequently without error. NOTE Some hardware devices, such as TK50 tape drives, verify data integrity as part of their hardware function. For devices such as these, you do not need to use /WRITE_CHECK. For information about which devices provide automatic write checking, consult your hardware documentation.