Why does Cinder volume creation fail with "System capacity is unbalanced"?

Solution Verified - Updated -

Issue

  • Cinder volume creation ends in error state with the "System capacity is unbalanced" error in volume.log.
2016-02-04 20:47:00.836 10289 ERROR cinder.volume.drivers.emc.scaleio [req-380a157f-d31d-4633-b591-2bc29e3f2bd5 4c7a007587cd436096db16025e48e34e 8d9e1b2ebfee41a5a4ad8ce9050455b8 - - -] Error creating volume: System capacity is unbalanced 

Environment

  • Red Hat OpenStack

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