A method for indexing a plurality of documents, that includes a plurality of duplicate documents, first identifies one or more duplicate groups of documents from among the plurality of documents. Embodiments of the invention include an infrastructure for initiating and monitoring cloud-runtime operations. A cutting head projects integrally from at least one end of the shaft. For added flexibility and increased independence from a microprocessor, a DMAC may include a command decoder that discovers, decodes and interprets commands in a data stream.