This is the numeric ID UCS Manager assigns to a stats collection policy object, a statistics collection policy that controls how often UCS Manager samples and reports performance counters for one statistics domain such as chassis, server, or adapter stats. An admin or monitoring script scanning several stats collection policies in the same domain uses this ID to iterate over them programmatically rather than parsing each instance's full DN. For example, a tool polling multiple stats collection policies attached under the same statistics domain would key its per-instance records off this ID.