Virtual file management system
November 20, 2016. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesMultiprocessor system comprising a plurality of data processors which are interconnected by a communication network File management system for permitting user access to files in a distributed file system based on linkage relation information Interchange object data base index which eliminates the need for private copies of interchange documents files by a plurality of application programs System of device independent file directories using a tag between the directories and file descriptors that migrate with the files Parallel I/O network file server architecture Virtual object management system for managing virtual objects which correspond to real objects under a user defined hierarchy System for parsing extended file names in an operating system Transparent peripheral file systems with on-board compression, decompression, and space management Client/server system and mail reception/display control method Centralized network monitoring device for monitoring devices via intermediate monitoring devices by means of polling and including display means displaying screens corresponding to heirarchic levels of the monitored devices in a network InventorsAssigneeApplicationNo. 752378 filed on 11/20/1996US Classes:707/10, Distributed or remote access707/8, Concurrency (e.g., lock management in shared database)707/101, Manipulating data structure (e.g., compression, compaction, compilation)707/205File allocationExaminersPrimary: Amsbury, WayneAssistant: Alam, Shahid Attorney, Agent or FirmForeign Patent References
International ClassG06F 017/30Foreign Application Priority Data1995-11-20 JPAbstractA virtual file management system constructed with a plurality of servers and a plurality of terminals that share file services provided by said servers, is that a virtual file management apparatus operating in at least one of said plurality of servers is provided that has: a management table which manages files stored on said plurality of servers by using virtual file identifiers, and in which a server name of a server where real data is stored and a real file identifier in said server are stored as a set for each of said virtual file identifiers; a receiving section which receives a file access request from each of said terminals; a request analyzing section which checks said management table by using the virtual file identifier contained in the file access request received by said receiving section, and thereby determines the server where the real data of the requested file is stored; a transmitting section which transmits data; and a request modification processing section which modifies said file access request so that a response to said file access request can be sent back to the terminal that issued said access request, directly from the server determined by said request analyzing section, and which instructs said transmitting section to transmit said modified file access request to said determined server, andsaid plurality of servers each include a request processing section which receives the file access request transmitted from said transmitting section of said virtual file management apparatus, and processes said received file access request, and which transmits the processed result to said terminal at least when said file access request is a request to read file contents.Other References
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