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Today, access control security for storage area networks (zoning and masking) is implemented by mechanisms that are inherently insecure, and are tied to the physical network components. However, what we want to secure is at a higher logical level independent of the transport network; raising security to a logical level simplifies management, provides a more natural fit to a virtualized infrastructure, and enables a finer grained access control. In this paper, we describe the problems with existing access control security solutions, and present our approach which leverages the OSD (Object-based Storage Device) security model to provide a logical, cryptographically secured, in-band access control for today's existing devices. We then show how this model can easily be integrated into existing systems and demonstrate that this in-band security mechanism has negligible performance impact while simplifying management, providing a clean match to compute virtualization and enabling fine grained access control.