A subsequent event might report that the peripheral is back online. Each ICM system contains a number of such nodes. A sample of node hierarchy is shown in Figure 11-3 . A key role of the DDSN is to allow customer support to track the state of these nodes. The AlarmTracker shows the current state of each node for each ICM system.
Different objects have different possible states.
ICM software includes a number of facilities to diagnose and correct its own problems. In many cases, a problem that causes an object to fail or become unavailable is corrected automatically by ICM software itself. In other cases, support representatives may need to intervene. Even if ICM software can correct the problem itself, customer support should be aware of what has happened. The AlarmTracker allows support representatives to recognize when an unusual number of problems occur within an ICM system and investigate further.