High Quality Content by WIKIPEDIA articles! XtreemFS is an object-based, distributed file system for wide area networks. The file system replicates objects for fault tolerance and caches metadata and data to improve performance over high-latency links. SSL and X.509 certificates support make XtreemFS usable over public networks. It`s important to note, that XtreemFS is a so-called "grid" file system and is not intended to use in local high-performance clusters.