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Parallel multicasting network file system

A network file system and local file system technology, applied in the field of improving the performance of network storage systems, can solve the problem of not solving the problem of requesting access to the same content, and achieve the effects of enhancing file distribution performance, eliminating bottlenecks, and removing performance bottlenecks

Active Publication Date: 2011-08-17
上海殷泊信息科技有限公司
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AI Technical Summary

Problems solved by technology

But it still does not solve the problem of multiple users requesting access to the same content at the same time in some multimedia applications (such as video on demand)

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] Combine below figure 1 , figure 2 and cases in detail on the software system composition and implementation methods.

[0015] framework

[0016] The overall structure of Parallel Multicast Network File System (pmNFS) is attached figure 1 shown. in particular,

[0017] ● standard network file system (such as the current NFS version 4), for file I / O.

[0018] ● Parallel NFS expansion, used to eliminate the performance bottleneck of NFS.

[0019] ●Multicast NFS extension, used to integrate and reduce I / O calls, and eliminate storage disk I / O performance bottlenecks.

[0020] ●Separate transmission channels for control data and file data.

[0021] ●The control data transmission channel uses the TCP protocol, and the file data transmission channel uses the UDP protocol.

[0022] ● Use forward error correction mechanism (FEC) in data transmission to improve the reliability of multicast.

[0023] Play channel management

[0024] ●Multiple playback channels

[002...

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Abstract

The invention discloses a parallel multicasting network file system for improving performance of a network memory system. A standard network file system is used as a base, a parallel expansion part is used for eliminating performance bottleneck of a standard network file system, and a multicasting expansion part is used for eliminating the I / O (Input / Output) performance bottleneck of a memory disk; separated transportation channels are used for control data and file data to allow the data to be transmitted into a plurality of servers in parallel by a plurality of clients; streaming media dataflows of a plurality of services are combined by multicasting to integrate and reduce I / O calls so as to eliminate the I / O performance bottleneck of the memory disk; the reliability of the multicasting is improved by using a forward correction mechanism; recording a checking value is recorded into the disc for storage after being calculated so as to realize the integration of file storage and transmission error correction; and the memory management of sequential writing and multicasting is provided by the buffer zone management and the disc I / O dispatch. The parallel multicasting network filesystem has the advantage that a parallel multicasting technology is introduced based on the current network file system to improve the distribution performance of the multimedia content.

Description

technical field [0001] The invention relates to a parallel multicast network file system, which is used to improve the performance of the network storage system. This technology uses the communication protocol of Network File System (NFS) and parallel multicast technology to form a batch distribution and storage mechanism of data files. When batch data is stored and processed, it can improve the performance of network storage systems, such as video on demand (VoD), network TV, video conferencing and video surveillance systems, etc. Background technique [0002] Multimedia applications often need to access video files quickly, concurrently, and safely across different platforms and file systems. Usually, the NFS distributed file system is used to realize this function, but its performance is only part of the file system performance of the export storage system. Moreover, in the current NFS implementation scheme, due to the limitations of various factors such as the limited n...

Claims

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Application Information

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IPC IPC(8): H04L12/18H04L29/08H04L29/06
Inventor 鲁为民
Owner 上海殷泊信息科技有限公司
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