@inproceedings{abb2fcf0e0dd46cf87563d1317e4b01b,
title = "Storage-efficient data replica number computation for multi-level priority data in distributed storage systems",
abstract = "Distributed storage systems often use replication for improved availability, performance and scalability. In this paper, we consider the case of using file replication to improve the availability of different classes of files, where some classes are more 'important' than others and more replicas are created for them to achieve improved availability. The question we attempt to answer is: given a fixed storage budget for storing replicas, what is the number of replicas of each file class to create to maximize the (weighted) overall availability of files? We present our work towards a replica number computation algorithm that takes into account a storage budget, a configurable maximum expected percentage of failed nodes, and weights for different file classes. Simulation results show that our algorithm is able to improve the availability of the prioritized files with higher weights, has a low computation time and can utilize storage space efficiently when total storage space scales to a large size.",
keywords = "availability, budget, optimization, replication, storage system",
author = "Cai, {Chris X.} and Abad, {Cristina L.} and Campbell, {Roy H.}",
note = "Funding Information: We thank Dr. I. Danishefsky for reading an earlier version of the section on mucopolysaccharides (presented in the first part of this review), Dr. R. J. Winzler for reading a part of the earlier version of the section on glycoproteins, Dr. S. I. Hakomori for reading and greatly improving an earlier version of the section on glycolipids, and Dr. R. K. Murray for reading the sections on cell surface glycoproteins and on glycolipids. Their criticisms, helpful suggestions, and corrections are gratefully acknowledged. This work was supported by the National Cancer Institute of Canada. One of us (VNN) is a Research Associatc of the National Cancer Institute of Canada. His thanks are due to his wife, Mrs. Uma Nigam, for hcr help in compiling the references and her constant cncouragemrnt and advice during thr period of writing this review.; 2013 43rd Annual IEEE/IFIP Conference on Dependable Systems and Networks Workshop, DSN-W 2013 ; Conference date: 24-06-2013 Through 27-06-2013",
year = "2013",
doi = "10.1109/DSNW.2013.6615512",
language = "English (US)",
isbn = "9781479901814",
series = "Proceedings of the International Conference on Dependable Systems and Networks",
publisher = "IEEE Computer Society",
booktitle = "2013 43rd Annual IEEE/IFIP Conference on Dependable Systems and Networks Workshop, DSN-W 2013",
}