dCache is a system for storing and retrieving huge amounts of data, distributed among a large number of heterogenous server nodes, under a single virtual filesystem tree with a variety of standard access methods. dCache is open source software built in Java and is used by, among others, seven of twelve Tier1 sites to CERN to store data from the La...
Found on http://en.wikipedia.org/wiki/DCache


The cache of dentry structures. Under UNIX an entry in a particular directory must be searched for linearly, so even if the disk block containing the directory entry list is in-core, there is an associated cost. The dcache stores recent results of these searches which in general speeds up these disk searches by a large factor. Recent 2.3 work uses ...
Found on https://www.encyclo.co.uk/local/22606
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