text: Figure 5-9 Live Partition Mobility (LPM) with PowerVC and HMC 
  
  (cid:2) Master/Infrastructure nodes are configured with the automatic remote restart; in case of 
  host failure, PowerVC automatically restarts the VMs (LPARs) on different hosts. 
  
  (cid:2) Create Server Groups for OpenShift VMs and configure soft-anti-affinity rules. 
  
  **OpenShift HA**
  OpenShift is also deployed for HA. In this reference architecture, the etcd state database is 
  colocated across the master nodes. The etcd requires a minimum of three nodes for HA. All 
  master nodes are configured in PowerVC to automatically restart in case of any host failure. 
  
  This reference architecture also uses three infrastructure nodes. Infrastructure nodes host 
  OpenShift infrastructure components, such as the registry, containers for log aggregation, 
  and metrics. A minimum of three infrastructure nodes are needed for HA when a shared 
  aggregated logging database is used, and to ensure that service interruptions do not occur 
  during a restart. All infrastructure nodes are configured in PowerVC to automatically restart in 
  case of any host failure. 