Propagation of alarms and states

Both alarms and state indicators impact the color of the icons.

Alarm indicators

Alarms are generated at the attribute level. When an issue is detected, the alarm is propagated up through the Grid Topology tree. The associated attribute, component, service, grid node, and site information displayed in the StorageGRID Webscale system all change to reflect the alarm’s severity. The color displayed reflects the most severe alarm currently active on that branch of the Grid Topology tree. As a result, you can view the general alarm severity level at the system level, then click through the service components to locate the specific details.

For example, in the following figure, the LDR service has at least two alarms:
Grid Topology tree showing alerts

State indicators

State indicators are displayed at the services level and take priority over alarm indicators. When a service enters either an Administratively Down or Unknown state, the state color is propagated down through the service to its components. This overrides any component alarm indicators. For example, a service state of Unknown supersedes an alarm severity of Critical and results in the service displaying the blue Unknown state color and not the Critical alarm severity color.

The state of grid node’s services propagates up the Grid Topology tree in the same manner that alarms do. For example, in the following figure, Storage Node DC1-S2 has been shut down and has a state of Unknown. This state overrides any alarms that might have been raised on any of its components. Unknown is a more severe state than any alarm and propagates up the Grid Topology tree, causing the entire data center to be shown in blue, the Unknown state color.
Grid Topology tree showing alerts