avg-cpu:  %user   %nice %system %iowait  %steal   %idle
           6.48    0.00    2.58    0.70    0.00   90.23

Device:            tps   Blk_read/s   Blk_wrtn/s   Blk_read   Blk_wrtn
sda              17.70        85.50       535.46  103188928  646237432