sar -d
...
02:00:01 PM       DEV       tps  rd_sec/s  wr_sec/s  avgrq-sz  avgqu-sz     await     svctm     %util
02:10:02 PM   dev11-0      0.00      0.01      0.00      8.00      0.00      3.00      3.00      0.00
02:10:02 PM    dev8-0     16.69    492.51    185.00     40.59      0.80     47.86      5.32      8.88
02:10:02 PM   dev8-16     31.36    544.08    158.34     22.40      0.31      9.87      6.79     21.30
02:10:02 PM  dev252-0     21.27    451.20    104.58     26.13      1.02     48.07      3.97      8.45

iostat  -dmx -N
Device:         rrqm/s   wrqm/s     r/s     w/s    rMB/s    wMB/s avgrq-sz avgqu-sz   await  svctm  %util
scd0              0.00     0.00    0.00    0.00     0.00     0.00     7.99     0.00    6.54   6.53   0.00
sda               0.08     5.54    0.19    4.10     0.00     0.04    22.06     0.44  101.61  10.16   4.36

sar -n DEV
...
Average:        IFACE   rxpck/s   txpck/s    rxkB/s    txkB/s   rxcmp/s   txcmp/s  rxmcst/s
Average:         eth0     33.34      2.20      4.01      0.32      0.00      0.00      0.55
Average:         eth1     30.96      0.00      2.25      0.00      0.00      0.00      0.55
Average:         eth2     30.96      0.00      2.25      0.00      0.00      0.00      0.55