Anti-vibration fan control system and method for modular power supplies

摘要

System and methods are provided for reducing vibration in server or data storage units. An anti-vibration system according to the present invention includes one or more disk drives and one or more fans in a defined area, and a controller which is configured to control operation of each of the one or more fans. A nominal speed setting and a speed range are determined for the one or more fans, either commonly or independently with respect to each, and the fans are caused to be driven in accordance with the determined speed setting and speed range. As a result the occasions in which individual fan speeds are coincident with fixed frequency sensitivities for each disk drive are substantially minimized.

主权项

1. An anti-vibration system comprising:
a plurality of fans positioned to direct an airflow in a defined area; and a controller effective to
determine a nominal speed setting for an operating speed for each of the plurality of fans,determine a speed range about the nominal speed setting for each of the plurality of fans, andcause each of the plurality of fans to be driven in accordance with the associated nominal speed setting and speed range such that each of the operating speeds for each of the plurality of fans is caused to oscillate from the respective nominal speed settings throughout the respective speed ranges.