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The MOSIX scalable cluster file systems for Linux

by: Lior Amar, Amnon Barak, Ariel Eizenberg, Amnon Shiloh
(2000)

X Abstract

MOSIX is a cluster computing enhancement of Linux that supports preemptive process migration. This paper presents the MOSIX Direct File System Access (DFSA), a provision that can improve the performance of cluster file systems by migrating the process to the file, rather then the traditional way of bringing the file's data to the process. DFSA is suitable for clusters that manage a pool of shared disks among multiple machines. With DFSA, it is possible to migrate parallel processes from a client node to file servers enabling parallel access to different files. DFSA can work with any file system that maintains cache consistency. Since no such file system is currently available for Linux, we implemented the MOSIX File-System (MFS) as a first prototype using DFSA. The paper describes DFSA and presents the performance of MFS with and without DFSA. 1

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