EVS Snapshot Status

EVS Snapshot Status	Description
creating	The EVS snapshot is being created.
available	The EVS snapshot is successfully created.
error	An error occurs when you try to create an EVS snapshot.
deleting	The EVS snapshot is being deleted.
error_deleting	An error occurs when you try to delete an EVS snapshot.
rollbacking	The EVS snapshot is rolling back data. NOTE: When you roll back a snapshot, you can only restore the data to the original disk. Data restoration to a specific disk is not possible. A snapshot can only be rolled back when the original disk is in the available or error_rollbacking state.
backing-up	The EVS snapshot is being created from a backup via a native OpenStack API. The system is automatically creating the EVS snapshot when an EVS disk is created from a backup via an API.