Home > Published Issues > 2022 > Volume 13, No. 6, December 2022 >
JAIT 2022 Vol.13(6): 549-561
doi: 10.12720/jait.13.6.549-561

Frequent Block Access Pattern-Based Replication Algorithm for Improving the Performance of Cloud Storage Systems

Mohammed Sharfuddin 1 and Thirumalaisamy Ragunathan 2
1. Computer Science and Engineering, Muffakham Jah College of Engineering and Technology, Hyderabad, India
2. Computer Science and Engineering, SRM, University, Amaravati, A.P., India

Abstract—The data replication is a crucial process to increase the performance of distributed systems by replicating multiple replicas of same data at different sites. With the evolution of the cloud storage, many people are transferring their crucial data to the cloud storage. Replication is used in cloud storage systems to improve availability, replication factor, access time and storage efficiency. Replication factor of a file refers to the number of replicas or copies of that file in the system. Every file in HDFS is stored in the form of blocks. HDFS has a default replication factor of 3 for all file blocks. In our proposed strategy a novel replication algorithm is proposed it decides the replication factor based on the support values of the file block then we will find the Frequent Block Access Pattern of the popular files and the placement of the frequent access pattern of the file blocks is based on the local support values at each data nodes. According to the results of the performance analysis, the proposed strategy's algorithm outperforms the Hadoop distributed file system's replication process. 

Index Terms—cloud storage systems, distributed file systems, HDFS, replication, replication factor, access time, storage cost 
Cite: Mohammed Sharfuddin and Thirumalaisamy Ragunathan, "Frequent Block Access Pattern-Based Replication Algorithm for Improving the Performance of Cloud Storage Systems," Journal of Advances in Information Technology, Vol. 13, No. 6, pp. 549-561, December 2022.

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