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Wide area file system and implementation method

A file system, wide-area technology, applied in transmission systems, electrical components, special data processing applications, etc., can solve problems such as being unable to provide file sharing access services, not supporting POSIX file access interface standards, etc., to improve resource utilization. , the effect of improving access performance and good versatility

Inactive Publication Date: 2014-07-23
INST OF COMPUTING TECH CHINESE ACAD OF SCI +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above three storage systems all develop a storage service for data access by various internal business logics, and cannot provide file sharing and access services between heterogeneous data centers in multiple places, and do not support the POSIX file access interface standard

Method used

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  • Wide area file system and implementation method
  • Wide area file system and implementation method
  • Wide area file system and implementation method

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0037] Such as figure 1 As shown, the server end 2 includes a node number management module 23 , a data transmission module 11 , and an event processing module 22 . The client 1 includes an event-driven module 12 , a data transmission module 11 , and a cache management module 13 . The following are the specific uses of each module:

[0038] The node number management module 23 is used to quickly locate the operation object, and in order to facilitate object management, this module 23 generates a globally unique identifier for the object (object, referring to a file or directory), which remains unchanged throughout the life cycle of the object. and is the unique identifier of the object communicating with client 1. This module 23 provides operations for adding, querying, and deleting node numbers. This module 23, when creating an object, assigns a unique node number for the created object, generates a record corresponding to the node number, records the mapping relationship ...

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Abstract

The invention discloses a wide area file system and an implementation method, and relates to the technical field of file systems. The implementation method for the file system is applicable in a wide area. According to the system, an event-driven module receives an operation request, whether a file exists in a local cache is inquired through a cache management module according to the node number of the requested file, if yes, the file is accessed from the cache, if not, the path name, in a server end database, of the file is inquired according to the node number and through a node management module, then the file and the meta-information of the file are obtained according to the information of the operation request and through an event processing module and are sent to the cache management module, and finally, the cache management module stores the file and the meta-information of the file into the local cache. The wide area file system and the implementation method do not rely on a bottom file system, it is only needed that the bottom file system can be shared, the space management function of the cache is provided, and the resource utilization rate of the system is increased.

Description

technical field [0001] The invention belongs to the technical field of file system (file system), and is a method for realizing a file system applicable to a wide area. Background technique [0002] As information technology penetrates into all aspects of social life, the total amount of data distributed around the world is growing rapidly at a geometric rate. In the context of the explosive growth of global data volume, next-generation data centers, global enterprises, and cloud storage systems all require effective and reliable shared access to widely distributed data. Therefore, efficient and reliable wide-area storage systems appear Particularly important. [0003] Although there are some large-scale cluster file systems such as GPFS, Lustre, etc., and some file systems widely used in the Internet field such as GFS, HDFS, etc., they can expand access bandwidth and capacity, and provide PB-level data for a large number of clients. access support, but the above-mentioned...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/08G06F17/30
Inventor 马留英刘浏许鲁刘振军闫鹏飞蔡杰明何文婷
Owner INST OF COMPUTING TECH CHINESE ACAD OF SCI
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