Linux 4.9.155-nrj-desktop-1rosa-x86_64 (...) avg-cpu: %user %nice %system %iowait %steal %idle 2.22 0.03 0.74 4.47 0.00 92.55 Device tps kB_read/s kB_wrtn/s kB_read kB_wrtn sda 49.97 573.55 230.26 2089168 838724 sdb 0.73 34.56 0.00 125889 9 sdc 0.11 4.28 0.00 15596 0 sdd 0.09 2.62 0.00 9536 1