Abstract: The present invention discloses a data access interface unit comprising: a physical storage device controller for receiving a first control signal from a first storage virtualization controller, and accordingly determining the first storage virtualization controller as the primary controller, and generating a first selection signal; a selector for receiving the first selection signal, and accordingly selecting data and signals from the first storage virtualization controller; and a clock generation circuit for providing a dedicated clock signal to the physical storage device, where when the physical storage device controller receives a re-set signal from a second storage virtualization controller, the physical storage device controller determines the second storage virtualization controller as the new primary controller, and accordingly generates a second selection signal so as to control the selector to select data and signals from the second storage virtualization controller.

Abstract: The biphasic topical compositions of various embodiments comprise a Phase A including castor oil and one or more additional non-polar solvents, and a Phase B including ethanol and one or more additional polar solvents, wherein the ratio of castor oil to ethanol is about 1:1 to about 3:1; and wherein the biphasic topical composition is free of surfactants and emulsifiers. The methods include treating uneven skin tone, treating acne, lightening or brightening the skin, protecting a subject's skin from sun damage, protecting a subject's skin and scalp from the effects of aging, improving the look of the skin, improving the appearance of the skin, treating fibrotic skin conditions, treating the hair, and improving the appearance of the hair.