The IPL performed after power-up is called a “quick start”, because the PLPA from the previous IPL can be used without reloading from the LPALST concatenation. For a “quick start”, the CVIO system parameter is used; VIO data set pages are purged, page data sets added (optionally reserved for non-VIO paging). The operator or the IEASYSxx parmlib member can add additional page data sets by specifying the PAGE parameter (with or without the NONVIO system parameter). For information about the CVIO, PAGE, and NONVIO parameters, see IEASYSxx (system parameter list).