demand staging - the process of moving blocks of data, upon request from a program, from one storage device to another device having a shorter access time, as opposed to anticipatory staging. ;
дс тдрлими цюлютдажкию дроемжки аиакиохдйис лидр
http://www.harcourt.com/dictionary/def/2/8/6/4/2864000.html;
