Every vmstorage node contains its own portion of data and removing the vmstorage node from the cluster creates gaps in the graph (because replication is out of scope). Note: please expect higher resource usage on the existing vmstorage nodes ( vmstorage B and vmstorage C ), as they now need to handle all the incoming data. We need this vmselect node for migrating data from vmstorage A to other vmstorage nodes in the cluster.