Increasing RAID-5 performance improving the scaling approaches

Author

Daci, Genti ; Ndreu, Mirela

Author_Institution

Fac. of Inf. Technol., Polytech. Univ. of Tirana, Tirana, Albania

fYear

2013

fDate

22-24 June 2013

Firstpage

1

Lastpage

5

Abstract

RAID is a storing technology that provides to nowadays systems more data security, availability and performance to the existing system. Being an important component of the system, it is convenient for us to improve as much as it is possible the weaknesses of the RAID volume. We are focused on data redistribution problem which is necessary to be performed after adding disks to the volume. In this paper we will review some algorithms and in particular we will discuss FastScale approach, which resulted in satisfactory values of data redistribution time when it was applied on RAID-0. Our proposal is a short algorithm that interacts with FastScale and adjusts it for RAID-5 volumes. The main structure of FastScale is not changed and this gives us reason to anticipate lower redistribution time and higher performance in RAID-5 volumes, as happens in RAID-0.

Keywords

RAID; FastScale approach; RAID-0; RAID-5; data redistribution problem; data redistribution time; data security; scaling approach; storing technology; Aggregates; Bandwidth; Load management; Media; Prediction algorithms; Proposals; Time factors; RAID-5; data redistribution; parity blocks;

fLanguage

English

Publisher

ieee

Conference_Titel

Computer and Information Technology (WCCIT), 2013 World Congress on

Conference_Location

Sousse

Print_ISBN

978-1-4799-0460-0

Type

conf

DOI

10.1109/WCCIT.2013.6618701

Filename

6618701