Why Does the Final Number of Files Increase When a Task for Migration from NAS_NFS_V3_MOUNT Is Paused and Resumed?

In a migration from NAS_NFS_V3_MOUNT, the system traverses and lists files using a directory stream iterator, which does not support precise file location marking. If a directory contains a large number of files at a single level, the system cannot generate an accurate snapshot of the file listing.

Specifically, when a migration task is paused and later resumed, the system continues listing files from the snapshot position recorded at the time of pause. If some files have already been listed and migrated before the pause, these files will be listed and migrated again after the resumption. This leads to the total file count to be falsely inflated. Importantly, no files are missed during the migration process. After the migration is complete, verify the files in the target storage system to ensure consistency.