ALR0579E The Port to Local Node Send Response Time of node node name in storage system storage system name was measured to be measured value ms/op, which violated the defined critical-idle boundary value of boundary value ms/op.
Explanation
Port to Local Node Send Response Time measures the average number of milliseconds that it took to service each send operation to another node in the local storage system. 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 Port to Local Node Send Response Time that is less than or equal to the critical-idle boundary that was defined for the related threshold.
Action
The threshold violation might indicate an unexpected drop in the workload for this node. This can happen if the application(s) using the node stopped working properly.
This type of threshold boundary should only be defined if the workload for the nodes in a storage system are guaranteed to always remain at a certain minimum level. Otherwise IBM Spectrum Control might recognize many violations, even though there is really no underlying problem with the applications. In these situations, consider decreasing the boundary value in the threshold definition, or disabling the boundary check by leaving the boundary value blank.