author	 = {Jakob Lüttgau and Julian Kunkel},
	title	 = {{Simulation of Hierarchical Storage Systems for TCO and QoS}},
	year	 = {2017},
	booktitle	 = {{High Performance Computing: ISC High Performance 2017 International Workshops, DRBSD, ExaComm, HCPM, HPC-IODC, IWOPH, IXPUG, P^3MA, VHPC, Visualization at Scale, WOPSSS}},
	editor	 = {Julian Kunkel and Rio Yokota and Michaela Taufer and John Shalf},
	publisher	 = {Springer},
	series	 = {Lecture Notes in Computer Science},
	number	 = {10524},
	pages	 = {116--128},
	conference	 = {ISC High Performance},
	location	 = {Frankfurt, Germany},
	isbn	 = {978-3-319-67629-6},
	doi	 = {},
	abstract	 = {Due to the variety of storage technologies deep storage hierarchies turn out to be the most feasible choice to meet performance and cost requirements when handling vast amounts of data. Long-term archives employed by scientific users are mainly reliant on tape storage, as it remains the most cost-efficient option. Archival systems are often loosely integrated into the HPC storage infrastructure. In expectation of exascale systems and in situ analysis also burst buffers will require integration with the archive. Exploring new strategies and developing open software for tape systems is a hurdle due to the lack of affordable storage silos and availability outside of large organizations and due to increased wariness requirements when dealing with ultra-durable data. Lessening these problems by providing virtual storage silos should enable community-driven innovation and enable site operators to add features where they see fit while being able to verify strategies before deploying on production systems. Different models for the individual components in tape systems are developed. The models are then implemented in a prototype simulation using discrete event simulation. The work shows that the simulations can be used to approximate the behavior of tape systems deployed in the real world and to conduct experiments without requiring a physical tape system.},

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