openstack live migration fails with: /dev/mapper/mpathe No such file or directory
Issue
-Live migration with openstack fails with the following error:
2015-07-07 09:26:55.319 4000 ERROR nova.virt.libvirt.driver [-] [instance: fa82e966-eca1-4f10-9be3-fd236d770800] Live Migration failure: Cannot access storage file '/dev/mapper/mpathe' (as uid:0, gid:0): No such file or directory
Environment
-Red Hat Openstack Platform 5
-Red Hat Openstack Platform 6
-Red Hat Openstack Platform 7
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