Fault　tolerance　(FT)　is　well　studied　and　practiced　in　the　past　decades　to　enhance　reliability　of　software　systems.　Although　many　sophisticated　fault　tolerance　mechanisms　have　been　developed,　they　are　difficult　to　be　applied　to　a　given　system　for　the　following　reasons.　Firstly,　the　comprehensive　analysis　of　the　target　system　is　a　challenging　task.　Secondly,　it　is　hard　to　determine　which　fault　tolerance　mechanisms　are　suitable　for　a　given　system.　Thirdly,　the　configuration　of　fault　tolerance　mechanisms　is　complex.　To　address　these　challenges,　this　paper　presents　a　model-based　framework　to　achieve　semi-automatic　configuration　of　fault　tolerance　mechanisms　for　component-based　systems.　The　system　administrators　just　need　to　construct　the　Runtime　Software　Architecture　(RSA)　of　the　target　system.　The　other　steps　will　be　carried　out　automatically.　To　validate　our　proposed　approach,　extensive　experiments　are　conducted　to　employ　a　popular　Java　enterprise　benchmark　running　in　our　cloud　platform.