Apparatuses and methods for protecting an optical device generally comprise: a sleeve portion to circumscribe and substantially conform to the shape of at least a portion of a housing of the optical device, and a body portion detachably coupled to the sleeve portion, wherein the body portion comprises an elongated piece comprising at least a first flap at a first end to encase a first lens. The apparatus includes a mirror control unit that controls a vertical motion of the mirror to be a triangle wave motion, and a scanning unit that repeatedly performs a forward scan and a reverse scan over the mirror in an orthogonal direction. Communication between the two storage controllers is effected through internal Infiniband switches.