Architecture for High Availability Systems Overview of HA Architecture When implementing an active/active highly available environment for Console, you can deploy two different types of architecture. IBM Aspera Cluster Manager (ACM) for Shares ACM is the software module responsible for starting the right services on a node according to that node’s current status (active or passive). It is also in charge of monitoring the active node to determine when to fail-over the active/passive services from the active to the passive (when the active node becomes unresponsive). Expected Load Balancer Behavior A load balancer monitors the health of each Shares nodes and redirects the traffic accordingly, balancing the load between all healthy nodes.