Migration cleanup is starting on sysid at the time time expressed as hh:mm:ss (hours, minutes, seconds), and date date expressed as yy/mm/dd(year,month, day), beginning at the control data set (CDS) record key cdskey or at the beginning of the migration control data set data set record (MCD). The System Management Facility (SMF) system identifier of the system on which the migration is processed is sysid.