%0 Journal Article %J Parallel Data Laboratory %D 2008 %T A Fault Model for Upgrades in Distributed Systems (CMU-PDL-08-115) %A Tudor Dumitras %A Kavulya, Soila %A Narasimhan, Priya %B Parallel Data Laboratory %8 2008/12/01/ %G eng %U http://repository.cmu.edu/pdl/10