TY - GEN
T1 - On Distributed Storage Allocations of Large Files for Maximum Service Rate
AU - Peng, Pei
AU - Soljanin, Emina
N1 - Publisher Copyright:
© 2018 IEEE.
PY - 2018/7/2
Y1 - 2018/7/2
N2 - Allocation of (redundant) file chunks throughout a distributed storage system affects important performance metrics such as the probability of file recovery, data download time, or the service rate of the system under a given data access model. This paper is concerned with the service rate under the assumption that the stored data is large and its download time is not negligible. We focus on quasi-uniform storage allocations and provide a service rate analysis for two common data access models. We find that the optimal allocation varies in accordance with different system parameters. This was not the case under the assumption that the download time does not scale with the size of data, where the minimal spreading allocation was previously found to be universally optimal.
AB - Allocation of (redundant) file chunks throughout a distributed storage system affects important performance metrics such as the probability of file recovery, data download time, or the service rate of the system under a given data access model. This paper is concerned with the service rate under the assumption that the stored data is large and its download time is not negligible. We focus on quasi-uniform storage allocations and provide a service rate analysis for two common data access models. We find that the optimal allocation varies in accordance with different system parameters. This was not the case under the assumption that the download time does not scale with the size of data, where the minimal spreading allocation was previously found to be universally optimal.
UR - http://www.scopus.com/inward/record.url?scp=85062869266&partnerID=8YFLogxK
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U2 - 10.1109/ALLERTON.2018.8635856
DO - 10.1109/ALLERTON.2018.8635856
M3 - Conference contribution
AN - SCOPUS:85062869266
T3 - 2018 56th Annual Allerton Conference on Communication, Control, and Computing, Allerton 2018
SP - 784
EP - 791
BT - 2018 56th Annual Allerton Conference on Communication, Control, and Computing, Allerton 2018
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 56th Annual Allerton Conference on Communication, Control, and Computing, Allerton 2018
Y2 - 2 October 2018 through 5 October 2018
ER -