Vanguard: Increasing Server Efficiency via Workload Isolation in the Storage I/O Path. - Yannis Sfakianakis; Stelios Mavridis; Anastasios Papagiannis; Spyridon Papageorgiou; Markos Fountoulakis; Manolis Marazakis; Angelos Bilas (SoCC, 2014)