Linux 4.4.0-203-generic (...) avg-cpu: %user %nice %system %iowait %steal %idle 0.04 0.00 0.16 0.00 0.00 99.80 Device tps kB_read/s kB_wrtn/s kB_dscd/s kB_read kB_wrtn kB_dscd sda 0.11 0.75 0.02 0.00 14256 284 0 sdb 2.11 43.06 13.92 0.00 814823 263492 0 sdc 0.01 0.22 0.00 0.00 4212 0 0