- ``multi-relocate`` or ``multi-evacuate``. The ``allocate`` request
- is used when a new instance needs to be placed on the cluster. The
- ``relocate`` request is used when an existing instance needs to be
- moved within its node group, while the ``multi-relocate`` one is
- able to relocate multiple instances across multiple node groups. The
- ``multi-evacuate`` protocol requests that the script computes the
- optimal relocate solution for all secondary instances of the given
- nodes.
+ ``change-group``, ``node-evacuate`` or ``multi-evacuate``. The
+ ``allocate`` request is used when a new instance needs to be placed
+ on the cluster. The ``relocate`` request is used when an existing
+ instance needs to be moved within its node group.
+
+ The ``multi-evacuate`` protocol used to request that the script
+ computes the optimal relocate solution for all secondary instances
+ of the given nodes. It is now deprecated and should no longer be
+ used.
+
+ The ``change-group`` request is used to relocate multiple instances
+ across multiple node groups. ``node-evacuate`` evacuates instances
+ off their node(s). These are described in a separate :ref:`design
+ document <multi-reloc-detailed-design>`.