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XtreemFS: A Distributed & Replicated File-System

Free Software

Published on 10 August 2011 06:51 AM EDT
Written by Michael Larabel in Free Software
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While EXT4 and Btrfs are the most talked about file-systems on Phoronix, there are certainly many more out there, especially when it comes to distributed file-systems and those largely only targeting enterprise environments. One example is XtreemFS, which is an open-source file-system that is distributed with support for clients and servers from any location and connected together using the Internet. This GPLv2-licensed file-system is also meant to easily replicate data across data-centers to reduce latency and network traffic.

According to recent information from Red Hat's Jeff Darcy on CloudFS (now known as HekaFS, following a trademark dispute over the cloud name), setup of XtreemFS is quite easy, but replication is a bit difficult. Beyond a few hurdles, "XtreemFS was the only distributed filesystem besides GlusterFS that could get through my “smoke test” without crashes, hangs, or data corruption."

Jeff concludes, "That might not seem like a very high standard considering that the test is just iozone reading and writing files sequentially, but four out of six distributed filesystems that I’ve tested (or tried to test) couldn’t even get that far. I wasn’t testing on systems where performance results would be really meaningful except to say that I test GlusterFS this way all the time and XtreemFS performance didn’t seem radically different. The fact that XtreemFS can handle even that much, along with the relative ease of installation and setup, already puts it at #2 on my list. I expect that when 1.3 does come out it will address at least some of the issues I’ve mentioned and offer a worthwhile choice for those who are interested in its unique feature set. I highly recommend that anyone interested in this area give it a look."

More information on the XtreemFS cloud file-system project is available from XtreemFS.org.

About The Author
Michael Larabel is the principal author of Phoronix.com and founded the web-site in 2004 with a focus on enriching the Linux hardware experience and being the largest web-site devoted to Linux hardware reviews, particularly for products relevant to Linux gamers and enthusiasts but also commonly reviewing servers/workstations and embedded Linux devices. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics hardware drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated testing software. He can be followed via and or contacted via .
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