By applying the Web Graphical Library (WebGL), a browser can render Three Dimensional (3D) images without installing any additive plugins. The three.js, a JavaScript library that encapsulates the low-level WebGL API, can even construct a 3D graphic more efficiently. Since existed visualization approaches for Redundant Array of Independent Disk (RAID) are non-intuitive and only with simple interactive functions, a new 3D RAID visualization framework is proposed in this work based on the three.js library. The model simulation and the interactive functions for visualizing a 3D RAID are explained step by step and implemented respectively. Compared to the traditional methods, the proposed 3D visualization framework constructs a more realizable 3D scene, thus provides the users better experiences both at visualization and interaction.