Storage Container Manager
This section covers operational procedures for Storage Container Manager (SCM) nodes in HA deployments: removing individual SCM replicas from the HA ring and migrating an SCM HA group to new hosts without restarting every DataNode.
Decommission
Storage Container Manager (SCM) decommissioning is the process in which you can gracefully remove one of the SCM from the SCM HA Ring.
SCM migration
This page describes how to move Storage Container Manager (SCM) roles to new hosts in an HA deployment while avoiding a full rolling restart of every Datanode for SCM endpoint changes.