{"id":153109,"date":"2007-06-01T00:00:00","date_gmt":"2007-06-01T00:00:00","guid":{"rendered":"https:\/\/www.microsoft.com\/en-us\/research\/msr-research-item\/models-and-software-model-checking-of-a-distributed-file-replication-system\/"},"modified":"2018-10-16T20:50:52","modified_gmt":"2018-10-17T03:50:52","slug":"models-and-software-model-checking-of-a-distributed-file-replication-system","status":"publish","type":"msr-research-item","link":"https:\/\/www.microsoft.com\/en-us\/research\/publication\/models-and-software-model-checking-of-a-distributed-file-replication-system\/","title":{"rendered":"Models and Software Model Checking of a Distributed File Replication System"},"content":{"rendered":"<div class=\"asset-content\">\n<p>With the Distributed File System Replication component, DFS-R, as the central theme, we present selected protocol problems and validation methods encountered during design and development. DFS-R is currently deployed in various contexts; in Windows Server 2003-R2, Windows Live Messenger (Sharing Folders), and Windows Vista (Meeting spaces). The journey from an initial design sketch to a shipped product required mainly the dedicated effort of testers, developers, program managers, and several others; but in some places cute problems related to distributed consensus and software model-checking emerged. This paper presents a few of these, including a distributed garbage collection problem, distributed consensus problems for reconciling tree-like data structures, using model-based test case generation, and the use of software model checking in design and development process.<\/p>\n<\/div>\n<p><!-- .asset-content --><\/p>\n","protected":false},"excerpt":{"rendered":"<p>With the Distributed File System Replication component, DFS-R, as the central theme, we present selected protocol problems and validation methods encountered during design and development. DFS-R is currently deployed in various contexts; in Windows Server 2003-R2, Windows Live Messenger (Sharing Folders), and Windows Vista (Meeting spaces). The journey from an initial design sketch to a 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