Product : VMware, vSAN [SDS]/6.7 U1, ROBO Adv
Feature : Data Corruption Detection, Reads/Writes, Data Availability
Content Owner:  Herman Rutten
Summary
Read integrity checks
Disk scrubbing (software)
Details
End-to-end checksum provides automatic detection and resolution of silent disk errors. Creation of checksums is enabled by default, but can be disabled through policy on a per VM (or virtual disk) basis if desired. In case of checksum verification failures data is fetched from another copy.

The disk scrubbing process runs in the background.