Replication in Mirrored Disk Systems

Abstract. In this paper we study data replication in a mirrored disk system. Free disk space is exploited by keeping replicas of specific cylinders at appropriate disk locations. Assuming an organ-pipe arrangement we calculate the expected seek distance by varying the probability cylinder access under different distributions. Also, analytic formulae are derived for the expected seek distance under replication and comparison with the conventional (without replication) mirrored disk system is performed.

• Type: Conference
• Year: 1998
• Where: ADBIS
• Authors: Athena Vakali, Yannis Manolopoulos
• Keywords: ADBIS 1998, Database, Mirrored Disk, Mirrored Disk System, Seek Distance