Why are VMs pausing due to an I/O error in RHEV?

Solution Verified - Updated -

Issue

  • Virtual machine goes into pause mode due to an I/O error.
  • VMs are pausing when anything somewhat storage-intensive occurs on the VM, such as dd from /dev/zero.

Environment

  • Red Hat Enterprise Virtualization (RHEV) 3.x
  • Red Hat Virtualization (RHV) 4.x

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