Logistical Computing, Internet2, University of Tennessee
by Joe St. Sauver
University of Oregon Computing Center
Syllabus News
10/30/2003 IT Trends
"Serving large files from a single location, or even from a comparatively small set of distributed mirrors, also doesn't scale very well. Ask anyone who hosts a Linux distribution mirror what they see when a Linux distributor kicks a new release out the door!
To move large files efficiently, you really want to get the data distributed around the network, with redundant copies topologically close to those who need it. Staging the data close to those who need it means that observed throughput *will* typically go up and network hot spots *can* usually be avoided. A free side benefit of distributing large files this way is that distribution of files via a series of geographically dispersed nodes grants the content of those files a degree of resistance to network denial of service attacks, or to data loss due to simple hardware failure. "
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