Device:            tps   Blk_read/s   Blk_wrtn/s   Blk_read   Blk_wrtn
sda               4.98         0.00        18.91          0         38

avg-cpu:  %user   %nice    %sys %iowait   %idle
           0.50    0.00    0.00    2.00   97.50

Device:            tps   Blk_read/s   Blk_wrtn/s   Blk_read   Blk_wrtn
sda               2.00         0.00        20.00          0         40

avg-cpu:  %user   %nice    %sys %iowait   %idle
           0.50    0.00    0.00    1.01   98.49

Device:            tps   Blk_read/s   Blk_wrtn/s   Blk_read   Blk_wrtn
sda               1.51         0.00       120.60          0        240

avg-cpu:  %user   %nice    %sys %iowait   %idle
           1.50    0.00    0.00    2.00   96.50

Device:            tps   Blk_read/s   Blk_wrtn/s   Blk_read   Blk_wrtn
sda               3.50         0.00        16.00          0         32