The Failover Manager monitors managed InChargeService and Host objects, but not unmanaged objects. InChargeServices are the sm_server processes like SAM, IP, MPLS, ESM, NPM and VoIP domains, and Host objects are the servers on which these processes are running. The InChargeService and Host objects can be managed and unmanaged through the Domain Manager Administration Console.

The Failover Manager monitors a managed object for the purpose of determining the object’s status. An unmanaged object is not polled by the Failover Manager, but remains present in the modeled topology.

A managed object is an object whose IsManaged attribute has a value of TRUE. IsManaged is a Boolean attribute: TRUE when an object is managed and FALSE when an object is unmanaged.

The Manage and Unmanage options enable you to control whether an object is managed. Unmanaging a service or host might be useful when, for example, services or hosts need to be taken offline for maintenance.

Management state can be set for the following types of objects:

  • Hosts

  • Brokers

  • InChargeServices

    The function of Manage and Unmanage options is recursive. When you unmanage an object, all the other objects that are functionally dependent on that object become unmanaged. When you unmanage a Host, all the services (Brokers and InChargeServices) that belong to that Host will be unmanaged.

    If you unmanage an InChargeService object, then that service will not be monitored. No scheduled backups will be performed and no failover will be performed when the domain fails. The status of the service will be marked as UNKNOWN.

    The Failover Manager maintains the management state of objects even after it is restarted.

    When you manage back an unmanaged object, a reconfiguration is required so that the polling settings can be applied back.