Use the service assistant GUI by the Technician port to view node errors on a node that does not have a front panel display such as a AC1 control enclosure node.
Because node errors are specific to a node, for example, memory failures, the errors might be reported only on that node.
There are two types of node errors: critical node errors and noncritical node errors.
A critical error means that the node is not able to participate in a clustered system until the issue that is preventing it from joining a clustered system is resolved. This error occurs because part of the hardware failed or the system detects that the software is corrupted. If a node has a critical node error, it is in service state, and the fault LED on the node is on. The exception is when the node cannot connect to enough resources to form a clustered system. It shows a critical node error but is in the starting state. Resolve the errors in priority order. The range of errors that are reserved for critical errors are 500 - 699.
A noncritical error code is logged when a hardware or code failure that is related to just one specific node. These errors do not stop the node from entering active state and joining a clustered system. If the node is part of a clustered system, an alert describes the error condition. The range of errors that are reserved for noncritical errors are 800 - 899.