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Sebastien Ponce authored
DataPools are pools of data, that is DiskCopies are directly placed in the pool, without any notion of FileSystem. DiskServers can be associated to such a pool and are thus able to server all the DiskCopies present in the pool (several diskservers can serve the same DiskCopy). The Schema has been modified and all the SQL code has been adapted to the new concept. The change should be backward compatible, in the sense that regular DiskPools are still working the same way as they did before. Note that DiskPools and DataPools can be mixed within a given service class but that there is no optimization of such a setup. This setup is more foreseen for transitionnal periods where optimization is a secondary issue.
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