When files are created and accessed from a Windows® client, all the security features of Windows are available and enforced. When files are created and accessed from UNIX-based clients, all the security features of UNIX® are available and enforced. When files created by a UNIX-based client are accessed by a Windows client, access is controlled using only the semantics and permissions of "other." Similarly, when files created by a Windows-based client are accessed by a UNIX-based client, access is controlled using only the semantics and permissions of "everyone."
File sharing in the SAN File System is classified as either homogenous or heterogeneous. File sharing is positioned primarily for homogenous environments. The ability to share files heterogeneously is recommended for read-only—that is, create files on one platform, and provide read-only access on the other platform. Therefore, set up filesets such that they have a primary allegiance to a single operating system. This means, for example, that certain filesets have files created in them only by Windows clients, and other filesets have files created in them only by UNIX clients.