Dot Hill Systems Corporation

Monte Scott Gilstrap

Yuanru Frank Wang

A method for downgrading firmware in a controller is provided. The method includes receiving a request, by the controller, to downgrade the firmware from a current version to an older version. For a feature implemented in the current version and not implemented in the older version, the method includes determining if the feature is currently in-use by the controller. If the feature is currently in-use by the controller, the method includes warning a user and abandoning the request. If the feature is not currently in-use by the controller, the method includes checking other features implemented in the current version and not implemented in the older version, and repeating determining, providing, abandoning, and checking, and downgrading the firmware, if all of the features implemented in the current version and not implemented in the older version are not currently in-use by the controller.

Growing community of inventors

Lafayette, CO, United States of America

Monte Scott Gilstrap