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BW-FILERAID: A Kind of File Based Distributed RAID System and Optimization
- Source :
- Applied Mechanics and Materials. :1208-1216
- Publication Year :
- 2011
- Publisher :
- Trans Tech Publications, Ltd., 2011.
-
Abstract
- In the ever-increasing development of network storage technology, distributed RAID has been a hot topic for data reliability and availability. To solve the problem of distributed RAID technology, such as: parallel access difficulty, long rebuild time, small write update and strip alignment problem, we design and implement file level distributed RAID system (BW-FILERAID) based on Blue Whale File System (BWFS). Also we do the research on resource allocation strategy, page cache management with parity data, consistence maintenance, online extension of RAID group, error detect and rebuild and small write optimization in BW-FILERAID. According to the testing results, the writing performance of BW-FILERAID is better than Linux soft RAID about 5%~50%, and the reading performance is equivalent to the RAID0. And it also has excellent extensibility.
- Subjects :
- Standard RAID levels
Non-RAID drive architectures
File system
Hardware_MEMORYSTRUCTURES
Intel Matrix RAID
Disk array controller
Computer science
RAID
Parity drive
General Medicine
computer.software_genre
Disk Data Format
law.invention
Nested RAID levels
RAID processing unit
law
Operating system
Page cache
Non-standard RAID levels
computer
Subjects
Details
- ISSN :
- 16627482
- Database :
- OpenAIRE
- Journal :
- Applied Mechanics and Materials
- Accession number :
- edsair.doi...........996b66cf945d684d5b0d2e2be0a69a60