@TechReport{cortes:pafs2, author = {Toni Cortes and Sergi Girona and Jes\'us Labarta}, title = {Avoiding the Cache-Coherence Problem in a Parallel/Distributed File System}, year = {1997}, month = {May}, number = {UPC-CEPBA-1996-13}, institution = {UPC-CEPBA}, earlier = {cortes:pafs}, URL = {ftp://ftp.ac.upc.es/pub/reports/CEPBA/1996/UPC-CEPBA-1996-13.ps.Z}, keywords = {file caching, multiprocessor file system, cooperative caching, cache coherence, parallel I/O, pario-bib}, abstract = {In this paper we present PAFS, a new parallel/distributed file system. Within the whole file system, special interest is placed on the caching and prefetching mechanisms. We present a cooperative cache that avoids the coherence problem while it continues to be highly scalable and achieves very good performance. We also present an aggressive prefetching algorithm that allows full utilization of the big caches offered by the cooperative cache mechanism. All the results presented in this paper have obtained through simulation using the Sprite workload.}, comment = {A longer, more detailed version of cortes:pafs.} }