Public bug reported:

After freshly building a raid 10 using mdadm I copied about a hundred GB
of data to the raid. When I check iostat output the numbers read are WAY
over the numbers written in only a few minutes after copying. Also being
raid 10 the written amount should be about equal, they are wildly
different, which to me looks more like random reads.

** Affects: sysstat (Ubuntu)
     Importance: Undecided
         Status: New

** Summary changed:

- Output from upstate has the total read and total write columns backwards in 
Ubuntu 14.04
+ Output from iostat has the total read and total write columns backwards in 
Ubuntu 14.04

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https://bugs.launchpad.net/bugs/1477347

Title:
  Output from iostat has the total read and total write columns
  backwards in Ubuntu 14.04

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