Title :
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
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;
Conference_Titel :
Computer and Information Technology (WCCIT), 2013 World Congress on
Conference_Location :
Sousse
Print_ISBN :
978-1-4799-0460-0
DOI :
10.1109/WCCIT.2013.6618701
