Moving Volumes to a Topology Separate from the CLDB-Only Nodes
About this task
To move volumes to a topology separate from the CLDB-only nodes:
Procedure
-
Move all non-CLDB nodes to a non-CLDB topology (e. g.
/defaultRack
) using the MapR Control System or the following command:maprcli node move -serverids <all non-CLDB nodes> -topology /defaultRack
-
Restrict all existing volumes to the topology
/defaultRack
using the MapR Control System or the following command:maprcli volume move -name <volume> -topology /defaultRack
All volumes exceptmapr.cluster.root
are re-replicated to the changed topology automatically.WARNING: To prevent subsequently created volumes from encroaching on the CLDB-only nodes, set a default topology that excludes the CLDB-only topology.