startprocess '</dev/null','>&DUMPOW',$rstr."dump 1bfu $softblocksizekb - $atf";
startprocess '<&DUMPOR','>&BUFOW','writebuffer';
startprocess '<&BUFOR','>/dev/null'
,"dd ibs=$softblocksizebytes obs=$blocksizebytes of=$ntape";
closepipes();
endprocesses();
startprocess '</dev/null','>&DUMPOW',$rstr."dump 1bfu $softblocksizekb - $atf";
startprocess '<&DUMPOR','>&BUFOW','writebuffer';
startprocess '<&BUFOR','>/dev/null'
,"dd ibs=$softblocksizebytes obs=$blocksizebytes of=$ntape";
closepipes();
endprocesses();