Why does iostat and `sar -b` sometimes output incorrect results in RHEL6

Solution Verified - Updated -

Issue

  • The output of sar -b is faulty at times, displaying some very large numbers.
12:00:01 AM       tps      rtps      wtps   bread/s   bwrtn/s
[... ]
06:00:01 PM 30846366465502200.00 30846366465505180.00 30846366465515812.00 30846366463767580.00 30846366465476232.00

Environment

  • Red Hat Enterprise Linux 6
  • Kernel - 2.6.32-358.6.2.el6.x86_64
  • sysstat-9.0.4-20.el6.x86_64

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