Settings change in aix

Hi

Can any one tell the procedure to change the maxpout and minpout settings on AIX

google: aix maxpout

first finding: http://publib.boulder.ibm.com/infocenter/aix/v6r1/index.jsp?topic=%2Fcom.ibm.aix.prftungd%2Fdoc%2Fprftungd%2Fdisk_io_pacing.htm

regards
zxmaus