You can use the SnapLock Compliance write verification option when each write operation to the disk media must be immediately read back and verified for integrity.
This feature adds a level of data integrity checking to the already robust data protection and resiliency features in Data ONTAP. Although SnapLock write verification can affect performance, the performance impact should not affect archival throughput.
SnapLock write verification is applicable only for SnapLock Compliance volumes. The SnapLock write verification option provides limited benefit beyond the advanced, high-performance data protection and integrity features already provided by nonvolatile RAM (NVRAM), checksums, RAID scrubs, media scans, and double-parity RAID.