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The sheer volume of modern data makes manual file management impractical. Search-oriented file systems, where data and metadata are indexed for fast search, are increasingly viewed as a necessity, everywhere from desktops to HPC. However, current techniques have been designed and tested for file system metadata, such as POSIX metadata, and fail to account for the wide variety of metadata users would like to search. In particular, the scientific world has been vocal about a desire to search extended and content metadata. While file system metadata is well characterized by a variety of workload studies, scientific metadata is much less well understood.
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