System and method for efficient data mirroring in a pair of storage devices

摘要

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 accessed from the controller and prevents the registers of the second device from being accessed from the controller. The mirroring logic may be configured in a second mode wherein the mirroring logic allows the registers of the second device to be accessed from the controller and prevents the registers of the first device from being accessed. The first and second devices may be configured via the mirroring logic such that the first and second devices are selected simultaneously. When selected simultaneously, the first and second devices may carry out a subsequently issued command substantially simultaneously.