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From: Felix H. <hu...@zi...> - 2008-10-29 13:35:46
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We have just released XtreemFS 0.10.0 on http://www.xtreemfs.org/. Apart from many quality improvements, it contains several exciting new features: * checksum support for file objects, including xtfs_scrub for verification * client: caching, improved performance, new platforms (win32, ARM, OS X) * UUIDs * OSD cleanup * plug-in interface Made popular by ZFS, checksums allow you to verify the integrity of your file data. XtreemFS OSD can now compute, maintain and verify checksums for each file object. Our new scrubbing tool xtfs_scrub allows you to verify checksums on all OSDs in parallel. Our client, an integral part of the XtreemFS architecture, is now much faster than previous versions, and you should be network or disk bound in most cases. We also added caching for file data and metadata, which also improves performance considerably. The client is now also running on Linux on ARM devices and we have added experimental ports for Windows and OS X. XtreemFS now identifies all its services by UUIDs. This allows you to move services and their data to different hosts and use NATed network setups where only some of the IP addresses can be used. Further, we have now a tool xtfs_cleanup for reclaiming storage space by erasing orphaned objects from OSDs (objects can be orphaned if the client crashes while deleting a file). We extend our plug-in interface in the MRC so that you can add your own policies (written in Java) to control its operation. ... Felix for the XtreemFS team |
From: Felix H. <hu...@zi...> - 2008-08-14 09:01:51
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Hi, we have released XtreemFS 0.9.0, a distributed file system for federated IT infrastructures. XtreemFS is an integrated part of the XtreemOS Linux operating system for the Grid, but can also be run on various other Linux distributions. XtreemFS is a full file system that features: - full Posix compliance, incl. Posix ACLs and extended attributes - parallel access to striped files, stripe width configurable per file - scalable installations by adding more storage and metadata servers - transparent integration into XtreemOS' user and VO management - integration into various X.509 authentication infrastructures - mountable on all systems that support FUSE, incl. OS X XtreemFS is GPL-licensed and available at http://www.xtreemfs.com/ for as source code and packaged for various Linux distributions, incl. XtreemOS. ... Felix for the XtreemFS development team |