CONTAP-366886: Race condition between writes and auto-adaptive migration scan can cause filesystem corruption on specific NetApp platforms.
Issue
When data is migrated to specific FAS platforms (FAS70 or FAS90) using vol-move, head upgrade or SnapMirror transfer, a scan is triggered to convert old style compression to auto-adaptive compression. Due to a race between auto-adaptive scanner and consistency point (CP), in certain conditions during CP we might write stale metadata on disk causing a file system inconsistency.