[CentOS] I/o Read/write BYTes ?

Mon Dec 14 09:51:39 UTC 2009
Roland Roland <R_O_L_A_N_D at hotmail.com>

Hello,


is there a way to detect the r/w i/o bytes on a hdd under centos?

  i know i can do it through task manager under windows though what 
about centos  through cli ?

any advice?