ALR0556E The CPU Utilization Percentage of node node name in storage system storage system name was measured to be measured value%, which violated the critical-stress boundary value of boundary value%.
Explanation
CPU Utilization Percentage measures the approximate utilization percentage of the CPUs of the nodes in the monitored storage systems. A threshold was defined on this metric, which causes the measured value to be compared to the defined boundaries for each set of performance statistics collected from the storage system.
This message indicates that a threshold boundary violation occurred. In this case, the specified node in the storage system has a CPU Utilization Percentage value that is greater than or equal to the critical-stress boundary that was defined for the related threshold.
Action
The threshold violation might indicate that a performance problem exists for this node. Either the node is experiencing a hardware or software related problem that is causing an increase in CPU usage, or the node is being overloaded with too high a workload. If the workload is too high, moving some of the node's workload to other less busy nodes might resolve the problem.
However this threshold indication is only as good as its defined boundary values. If the specified boundary value is too low, IBM Spectrum Control might recognize many violations, even though there is really no underlying performance problem with the node. In this case, increase the boundary value in the threshold definition to reduce the number of unnecessary alerts.