Migration management based on massive data classified memory system |
Title： |
| Migration management based on massive data classified memory system |
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Application Number： |
200710119359 |
Application Date： |
2007/07/23 |
Announcement Date： |
2008/01/09 |
Pub. Date： |
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Publication Number： |
101101563 |
Announcement Number： |
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Grant Date： |
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Granted Pub. Date： |
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ApplicationType： |
Invention |
State/Country： |
11[China|beijing] |
IPC： |
06F 9/50G06F 17/30G06F 12/08 |
Applicant(s)： |
Tsinghua University |
Inventor(s)： |
Shu Jiwu, Chen Kang, Yu Deshui, Zhang Guangyan |
Key Words： |
Migration management, massive data, classified memory |
Abstract： |
Characters of the method are that client proxy software of parallelized file system on each front-end host implements supporting VFS access; server of metadata is in charge of executing increment scaling, transporting management and rate control i.e. operations so as to realize performance guarantee of front-end application in hierarchical storage system for mass data (HSSMD). According to performance, data servers are divided into fast data servers and slow data servers. Data server processes incremental scan command sent from metadata server, returns scanned information, and meanwhile executes file transfer command sent from metadata server. Based on condition of load, the method dispatches procedure of data transfer. Based on condition of remnant space (RS) of fast device, the method carries out degradation initiatively. The invention reduces influence on application in front end from transporting procedure, raises rate of RS of fast device, and enhances self management for HSSMD. |
Claim： |
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Priority： |
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PCT： |
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LegalStatus： |
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