Related
File systems
Applications frequently present access patterns not optimized by current file system because they were not a common trend when such file systems were designed. For instance, most file system have problems when trying to efficiently accommodate millions of files into a single directory. In a similar way, current file system assumed that that locality on the accessed files was granted, but this is not the case, for instance, in a picture repository in the cloud. In this area we reevaluate some of these assumptions a rework filesystems to improve their usability and performance.
DualFS is a new generation journal file system where metadata is only kept in the log and it is not replicated in the data device. This work is done in cooperation with the Universidad de Murcia (http://ditec.um.es/~piernas/dualfs/).
COFS is a virtual file system that is able to offer the fucntionality applications desire and "implement" it as the underlying storage system know how to handle efficiently.
HashFS Is a file system designed to work more efficient than current file systems in environments with many users where locality in the accessed files is not a key issues (for instance a cloud repository of pictures). This work is done in with the Paderborn Parallel Computing Center (PC2).
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