Adaptive data throttling for storage controllers

A system for minimizing data transfer latency between redundant storage controllers in a network-based storage controller system, the system comprising:

• each corresponding redundant storage controller calculating an average time latency for round trip communications between the corresponding redundant storage controller and the other redundant storage controllers during a fixed monitoring period;
• the corresponding redundant storage controller, at an end of each fixed monitoring period, comparing the average time latency to a fixed latency;
• and
• the corresponding redundant storage controller selectively throttling data transfer between the corresponding redundant storage controller and a server and data transfer between the corresponding redundant storage controller and a back-end storage, based on the comparison.

A computer program product for minimizing data transfer latency between redundant storage controllers in a network-based storage controller system, the computer program product comprising:

• a non-transitory storage device readable by a processing circuit and storing instructions run by the processing circuit,
• wherein the processing circuit is configured to perform:
• calculating, by each redundant storage controller, an average time latency for round trip communications between the each redundant storage controller and other redundant storage controllers during a fixed monitoring period;
• at the end of each fixed monitoring period, comparing, by the each redundant storage controller, the calculated average time latency to a fixed latency;
• and
• selectively throttling, by the each redundant storage controller, data transfer between the each redundant storage controller and a server and data transfer between the each redundant storage controller and a back-end storage, based on the comparison.