verifyMode

Specifies how and when DataSync checks the integrity of your data during a transfer.

• ONLY_FILES_TRANSFERRED (recommended) - DataSync calculates the checksum of transferred files and metadata at the source location. At the end of the transfer, DataSync then compares this checksum to the checksum calculated on those files at the destination.We recommend this option when transferring to S3 Glacier Flexible Retrieval or S3 Glacier Deep Archive storage classes. For more information, see Storage class considerations with Amazon S3 locations.

• POINT_IN_TIME_CONSISTENT (default) - At the end of the transfer, DataSync scans the entire source and destination to verify that both locations are fully synchronized.You can't use this option when transferring to S3 Glacier Flexible Retrieval or S3 Glacier Deep Archive storage classes. For more information, see Storage class considerations with Amazon S3 locations.

• NONE - DataSync doesn't run additional verification at the end of the transfer. All data transmissions are still integrity-checked with checksum verification during the transfer.