Vmstat -D

vmstat -D

vmstat -D
            9 disks
            3 partitions
        61467 total reads
           23 merged reads
      2215992 read sectors
        50836 milli reading
       640934 writes
       239823 merged writes
     19344090 written sectors
     12234180 milli writing
            0 inprogress IO
          807 milli spent IO