Abstract
Shared storage file systems consist of multiple storage devices connected by dedicated data-only network and workstations that can directly access the storage devices. In this shared-storage environment, data consistency is maintained by lock servers which use separate control network to transfer the lock information. Furthermore, lease mechanism is applied to cope with control network failures. However, when the control network fails, participating workstations can no longer make progress after the lease term expires. In this paper we address this limitation and present a method that enables network-partitioned workstations to continue file operations even after the control network is down. The proposed method works in a manner that each workstation is rotationally given a predefined lease term periodically. We also show that the proposed mechanism always preserves data consistency.
This work was done as a part of Information & Communication Fundamental Technology Research Program, supported by Ministry of Information & Communication in Republic of Korea.
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References
Soltis, S.R., Ruwart, T.M., O’Keefe, M.T.: The Global File System. In: Proceedings of the Fifth NASA Goddard Space Flight Center Conference on Mass Storage Systems and Technologies, September 17-19 (1996)
Burns, R.C., Rees, R.M., Long, D.D.E.: Safe Caching in a Distributed File System for Network Attached Storage. In: Proceedings of the International Parallel and Distributed Processing Symposium (IPDPS). IEEE, Los Alamitos (2000)
Kim, C.-S., Kim, G.-B., Shin, B.-J.: Volume Management for SAN environment. In: Proceedings of the International Conference on Parallel and Distributed Systems (2001)
Schmuck, F., Haskin, R.: GPFS: A Shared-Disk File System for Large Computing Clusters. In: Proceedings of the Conference on File and Storage Technologies (FAST 2002), pp. 231–244 (2002)
CXFS: A high-performance, multi-OS SAN file system from SGI. SGI White Paper, http://www.sgi.com/products/storage/tech/file_systems.html
Gray, C., Cheriton, D.: Lease: An efficient fault-tolerant mechanism for distributed file cache consistency. In: Twelfth ACM Symposium on Operating Systems Principles, pp. 202–210 (1989)
Garey, M.R., Johnson, D.S.: Computers and Intractability: A Guide to the Theory of NP-Comleteness. W.H.Freeman, New York (1979)
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© 2005 Springer-Verlag Berlin Heidelberg
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Tak, B.C., Chung, Y.D., Kim, S.J., Kim, M.H. (2005). Rotational Lease: Providing High Availability in a Shared Storage File System. In: Yang, L.T., Rana, O.F., Di Martino, B., Dongarra, J. (eds) High Performance Computing and Communications. HPCC 2005. Lecture Notes in Computer Science, vol 3726. Springer, Berlin, Heidelberg. https://doi.org/10.1007/11557654_24
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DOI: https://doi.org/10.1007/11557654_24
Publisher Name: Springer, Berlin, Heidelberg
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