nova/releasenotes/notes/bp-specifying-az-to-unshelv...

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---
features:
- |
Microversion 2.77 adds the optional parameter ``availability_zone`` to
the ``unshelve`` server action API.
* Specifying an availability zone is only allowed when the server status
is ``SHELVED_OFFLOADED`` otherwise a 409 HTTPConflict response is
returned.
* If the ``[cinder]/cross_az_attach`` configuration option is False then
the specified availability zone has to be the same as the availability
zone of any volumes attached to the shelved offloaded server, otherwise
a 409 HTTPConflict error response is returned.