Utilizing Comparison Performance Information in a Storage Network

A computing device of a storage network, the computing device comprising:

• memory;
• an interface;
• and
• a processing module operably coupled to the memory and the interface, wherein the processing module is operable to:
• error encode data into sets of encoded data slices in accordance with error encoding parameters, wherein encoded data slices of the sets of encoded data slices are stored in a set of storage devices of the storage network;
• obtain, via the interface, performance information from a storage device of the set of storage devices;
• obtain, via the interface, additional performance information for each storage device of the set of storage devices, wherein the additional performance information is based on historical performance rates of the set of storage devices, wherein the historical performance rates include one or more of a response time, a latency, and a throughput;
• generate comparison performance information based on the performance information and the additional performance information;
• determine that at least one component of the comparison performance information exceeds a corresponding error threshold for the at least one component;
• and
• output, via the interface, indication of a performance error for the storage device based on the at least one component of the comparison performance information exceeding the corresponding error threshold.