Electrical computers and digital processing systems: memory – Storage accessing and control – Shared memory area
Reexamination Certificate
2008-04-15
2008-04-15
Nguyen, T (Department: 2187)
Electrical computers and digital processing systems: memory
Storage accessing and control
Shared memory area
C709S215000
Reexamination Certificate
active
07360034
ABSTRACT:
An architecture provides the ability to create and maintain multiple instances of virtual servers, such as virtual filers (vfilers), within a server, such as a filer. A vfiler is a logical partitioning of network and storage resources of the filer platform to establish an instance of a multi-protocol server. Each vfiler is allocated a subset of dedicated units of storage resources, such as volumes or logical sub-volumes (qtrees), and one or more network address resources. Each vfiler is also allowed shared access to a 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 access certain storage resources for a requested file stored on the filer platform.
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Banga Gaurav
Muhlestein Mark
Cesari and McKenna LLP
Network Appliance Inc.
Nguyen T
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