A method and data processing system for using file backup software to generate an alert when a file modification policy is violated. The downhole tool includes an elongated body defining a central passageway and including a plurality of production openings and at least one frac opening, a frac mandrel disposed within the central passageway, and a packer disposed about the elongated body. The milling cutter body defines a longitudinal axis and is provided with an axial recess, wherein at least one mass element is arranged in the recess. The method also permits sampling in vivo permitting real-time ambient studies of microbial communities. A storage medium storing a computer program executable by a processor based system and an apparatus for use with a simulation are also disclosed.