ARCHITECTURE FOR CREATING AND MAINTAINING VIRTUAL FILER ON FILER

摘要

PROBLEM TO BE SOLVED: To provide an architecture for providing ability to create and maintain the multiple instances of virtual servers such as virtual filers (vfiler) in one server such as a filer. SOLUTION: A vfiler is a logical partitioning of the network and storage resources of a filer platform to establish the instances of multi-protocol servers. Each vfiler is allocated a subset of dedicate units of storage resources such as volumes or logical sub-volumes (qtree) and one or more network address resources. Each vfiler is also allowed to perform shared access to the file system resource of a storage operating system. To ensure controlled access to the allocated and shared resources, each vfiler is further assigned its own security domain for each access protocol. A vfiler boundary check is performed by the file system to verify that a current vfiler is allowed to perform access to certain storage resources for a requested file stored on the filer platform. COPYRIGHT: (C)2003,JPO