Cannot migrate cinder volume from one backend to another

Solution Unverified - Updated -

Issue

  • Cinder volume type , volume_type
  • migrate volume with different volume backends
  • migrate volume with different volume type
  • A cinder migrate from one LVM backend to another fails and the below messages are seen in the cinder scheduler log:
2015-12-22 19:19:46.871 20158 ERROR cinder.scheduler.manager [req-<uuid> - - -] Failed to schedule_migrate_volume_to_host: No valid host was found. Cannot place volume <uuid> on controller@san-storage-4#san-storage-4

2015-12-22 19:19:46.869 20158 DEBUG cinder.openstack.common.scheduler.filters.capabilities_filter [req-<uuid> - - -] extra_spec requirement 'lvm-san-1' does not match 'san-storage-4' _satisfies_extra_specs /usr/lib/python2.7/site-packages/cinder/openstack/common/scheduler/filters/capabilities_filter.py:56

Environment

  • Red Hat OpenStack Platform 7.0

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