Linux 4.9.155-nrj-desktop-1rosa-x86_64 (...) avg-cpu: %user %nice %system %iowait %steal %idle 2.61 0.06 0.99 5.76 0.00 90.58 Device: tps kB_read/s kB_wrtn/s kB_read kB_wrtn sda 45.84 1311.36 229.36 1010695 176776 sdb 0.44 17.13 0.00 13204 0 sdc 0.46 27.32 0.00 21054 0 sdd 0.69 48.52 0.00 37392 0