HP NonStop G-Series - Manual (Page 42)

State Indicators
The color of system icon in the view pane shows the
overall state of the system.
A red or yellow icon displayed over a resource indicates
that it requires service or operational intervention.
Icons in the overview pane show the state of various
resources.
In the tree pane, a yellow icon displayed over a system,
group, module, or any parent object that contains
subcomponents indicates that one or more subcomponents
require service or operational intervention.
State icons are also shown in the Physical view of a
cluster or system.
Alarm Indicators
If the object has at least one alarm, an alarm icon appears:
In the tree pane
On the alarms tab and detail