NetApp Data Broker (NDB)
SnapCenter Plug-In for VMware (SCV)
The "Cleanup secondary backup" task is scheduled to remove orphaned backup records for SnapMirror and SnapVault relationships. During the task, NDB/SCV compares the list of backups that are stored in it's own MySQL repository (NSM) against the snapshots that exist on the storage system. If there are any orphaned MySQL records (snapshots no longer exist in Data ONTAP) then they will be purged.