This DateAndTime value is the timestamp of the most recent update to the embedded FSM on a record of one change operation, such as a rename, copy, or delete, performed on a system file. An admin can compare this timestamp to the current time to judge whether the operation is still actively progressing or has gone quiet. For example, an admin auditing what happened to a configuration file that appears to have been altered, and a fsmStamp that stops advancing would be a sign that operation has stalled.