We are pleased to present to the community the proceedings of HotDep'11, the seventh instance of the HotDep workshop series. The goals of Hot-Dep are to bring forth cutting-edge research ideas spanning the various domains of dependable systems, and to build linkages between two communities with active interest in dependability research, namely researchers who attend traditional dependability conferences such as DSN and ISSRE, and those who attend mainstream systems conferences such as SOSP, OSDI, and EuroSys. To achieve these goals, the workshop has been alternating between a dependability conference in odd years and a systems conference in even years. This year, we have kept the tradition of previous meetings by selecting a program committee with a mix of researchers from both communities: Lorenzo Alvisi, University of Texas at Austin Remzi Arpaci-Dusseau, University of Wisconsin, Madison Byung-Gon Chun, Intel Labs Berkeley Arun Iyengar, IBM Research Mohamed Kaniche, LAAS-CNRS Daniel Mossé, University of Pittsburgh Priya Narasimhan, Intel Labs/Carnegie Mellon University James Plank, University of Tennessee André Schiper, EPFL Alexander Shraer, Yahoo! Research Atul Singh, NEC Labs, Princeton Marco Vieira, University of Coimbra Lidong Zhou, Microsoft Research Asia, Beijing © 2011 IEEE.