In-memory (transactional) data stores, also referred to as data grids, are recognized as a first-
class data management technology for cloud platforms, thanks to their ability to match the
elasticity requirements imposed by the pay-as-you-go cost model. On the other hand,
determining how performance and reliability/availability of these systems vary as a function
of configuration parameters, such as the amount of cache servers to be deployed, and the
degree of in-memory replication of slices of data, is far from being a trivial task. Yet, it is an …