The value of tnOamSaaCtlKeepProbeHistoryAdm specifies whether or not per-probe history table rows will be created for this test. A test without per-probe history table rows consumes less CPM RAM. tnOamSaaCtlKeepProbeHistoryOpr is a read-only operational value derived from tnOamSaaCtlKeepProbeHistoryAdm. The bulk of the tnOamSaaCtlKeepProbeHistoryAdm semantics are described in the tnOamSaaCtlKeepProbeHistoryOpr DESCRIPTION clause. An attempt to set tnOamSaaCtlKeepProbeHistoryAdm to 'drop(2)' when tnOamSaaCtlTestMode is not 'ping(1)' returns an 'inconsistentValue' error to the manager. When the SAA test's test mode is deconfigured (i.e. tnOamSaaCtlTestMode becomes 'notConfigured(0)'), tnOamSaaCtlKeepProbeHistoryAdm returns to its default value.