http:^^www.cs.umd.edu^projects^bdisk^index.html

来自「This data set contains WWW-pages collect」· HTML 代码 · 共 74 行

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Date: Wed, 20 Nov 1996 19:41:49 GMT
Server: Apache-SSL/0.4.3b
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Content-length: 2415
Last-modified: Tue, 23 Jul 1996 01:28:24 GMT

<title>Broadcast Disks</title><body background="backgr.gif"><!WA0><img alt="" src="http://www.cs.umd.edu/projects/bdisk/broadcast_trans.gif" align = left><!WA1><img alt="" src="http://www.cs.umd.edu/projects/bdisk/broadcast_trans.gif" align = right><center><h2>Broadcast Disks: <br>Data Management for Asymmetric <br>Communication Environments</h2></center><hr noshade><p> The <em>Broadcast Disks</em> project is investigating the use ofdata broadcast to provide improved performance, scalability, andavailability in an increasingly important class of networked applications.Many emerging application environments have the property that communicationamong nodes is asymmetric.  Typically, servers can and/or must send muchmore data to clients than clients send back to the servers.  Examplesinclude wireless networks with mobile clients, cable and direct satellitebroadcast television, information dispersal and information retrievalapplications.  Broadcast Disks exploits communication asymmetry by treatinga broadcast stream of data that are repeatedly and cyclicly transmitted asa storage device.  The broadcast disk technique has two main components.First, multiple broadcast programs (or ``disks'') with different latenciesare superimposed on a single broadcast channel, in order to provideimproved performance for non-uniform data access patterns and increasedavailability for critical data.  Second, the technique integrates the useof client storage resources for caching and prefetching data that isdelivered over the broadcast.  The challenges being addressed in thisproject include: broadcast program generation, caching and prefetchingstrategies, and adapting to volatile data, changing client needs, andcommunication errors.  <p><center><!WA2><a href="http://www.cs.umd.edu/cgi-bin/imagemap/projects/bdisk/menubar.map"><!WA3><img alt="" border="0" src="http://www.cs.umd.edu/projects/bdisk/menubar_trans.gif" ismap></a><br><!WA4><a href="http://www.brown.edu/"><!WA5><img alt="Brown" border=0 src="http://www.cs.umd.edu/projects/bdisk/brown_trans.gif"></a><!WA6><img alt="" border=0 src="http://www.cs.umd.edu/projects/bdisk/smallspace_trans.gif"><!WA7><a href="http://inform.umd.edu/"><!WA8><img alt="UMCP" border=0 src="http://www.cs.umd.edu/projects/bdisk/umcp_trans.gif"></a><p>[ <!WA9><a href="http://www.cs.umd.edu/~franklin/papers/twopager.ps.gz">Project Summary</a>|<!WA10><a href="http://www.cs.umd.edu/projects/bdisk/papers.html">Recent Publications</a>|<!WA11><a href="http://www.cs.umd.edu/projects/bdisk/group.html">Project Members</a>|<!WA12><a href="http://www.cs.umd.edu/projects/bdisk/sponsors.html">Sponsors</a>]</center>

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