Improving the Performance of N-ary RAID by Writing with XOR Operation

Author

Nakamura, Yuji ; Uehara, Minoru

Author_Institution

Dept. of Inf. & Comput. Sci., Toyo Univ., Saitama, Japan

fYear

2011

fDate

22-25 March 2011

Firstpage

633

Lastpage

638

Abstract

Today, CGM(Consumer Generated Media) such as blog is spread. In addition, photo and video sharing sites become popular. In this way, the amount of information in network increases drastically. Such information is usually stored into a large-scale storage which consists of many disks. In such a storage system, the larger the number of disks is, the lesser the reliability of the system. RAID is usually used to improve the reliability of storage. However, it is not enough because conventional RAID repair only either one or two faults. Therefore, we require more than 2 fault tolerant RAID. If hierarchical RAID is employed, more than 2 fault tolerance can be realized but the capacity efficiency is decreased. We have proposed Nary RAID (Nary RAID) which realizes 3-fault tolerant without hierarchical organization. The capacity efficiency of Nary RAID is larger than that of hierarchical RAID. In this paper, we describe how to improve the performance of Nary RAID and evaluate its effectiveness.

Keywords

RAID; fault tolerant computing; performance evaluation; Consumer Generated Media; N-ary RAID; XOR operation; blog; fault tolerance; performance improvement; photo sharing sites; storage system; system reliability; video sharing sites; virtual large scale disks; Fault tolerance; Fault tolerant systems; File servers; Linux; Maintenance engineering; Servers; Writing; N-ary RAID (NaryRAID); Virtual Large Scale Disks (VLSD);

fLanguage

English

Publisher

ieee

Conference_Titel

Advanced Information Networking and Applications (AINA), 2011 IEEE International Conference on

Conference_Location

Biopolis

ISSN

1550-445X

Print_ISBN

978-1-61284-313-1

Electronic_ISBN

1550-445X

Type

conf

DOI

10.1109/AINA.2011.38

Filename

5763462