Linux 4.9.0-8-amd64 (...) avg-cpu: %user %nice %system %iowait %steal %idle 2.11 0.04 0.66 0.31 0.00 96.87 Device: tps kB_read/s kB_wrtn/s kB_read kB_wrtn sda 9.32 140.71 168.45 1410923 1689052 sdb 0.02 0.63 0.00 6280 0 sdc 0.15 10.85 0.00 108792 4