A system may include mirroring logic, a controller, and first and second devices (e.g., data storage devices). The first and second devices may include multiple registers. The mirroring logic may be configured in a first mode wherein the mirroring logic allows the registers of the first device to be...http://www.google.de/patents/US20020103966?utm_source=gb-gplus-sharePatent US20020103966 - System and method for efficient data mirroring in a pair of storage devices
