DocumentCode :
3446859
Title :
Research on Self-Adaptive Distributed Storage System
Author :
Han, Dezhi ; Feng, Fu
Author_Institution :
Guangdong Univ. of Foreign Studies, Sun Yat-sen (zhongshan) Univ., Guangzhou
fYear :
2008
fDate :
12-14 Oct. 2008
Firstpage :
1
Lastpage :
4
Abstract :
Ensuring performance is a long term goal in network storage systems. Existing management tools require detailed knowledge of the system characteristics and the access patterns to modulate a suitable resource schedule, but the knowledge is hard for system administrator to get. This paper brings out a self-adaptive distributed storage network (SDSS). By using an online QoS monitor controller, the SDSS can adaptively allocate storage bandwidth to application classes so as to meet their response time requirements. Firstly, in the SDSS, spare bandwidth from underloaded classes should be reallocated to classes that are heavily loaded; Secondly, when aggregate workload exceeds SDSS capacity, causing the target response times of all classes to be exceeded, SDSS allocates a wider bandwidth for applications that has higher priority; Thirdly, the SDSS could online automatically change the data distributions when the storage system is heavy loading or overloading, therefore it can reduce the I/O burden of hot spots, and guarantee QoS of storage systems. Our experiments demonstrate the improvement of the storage systems by using SDSS.
Keywords :
processor scheduling; quality of service; resource allocation; self-organising storage; I/O burden; data distributions; heavy loading; hot spots; network storage systems; online QoS monitor controller; resource scheduling; self-adaptive distributed storage system; Adaptive control; Bandwidth; Control systems; Delay; Knowledge management; Monitoring; Programmable control; Prototypes; Storage automation; Sun;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Wireless Communications, Networking and Mobile Computing, 2008. WiCOM '08. 4th International Conference on
Conference_Location :
Dalian
Print_ISBN :
978-1-4244-2107-7
Electronic_ISBN :
978-1-4244-2108-4
Type :
conf
DOI :
10.1109/WiCom.2008.1204
Filename :
4679112
Link To Document :
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