  With the growing cyber-security threats, ensuring the security of data in
Cloud data centers is a challenging task. A prominent type of attack on Cloud
data centers is data tampering attack that can jeopardize the confidentiality
and the integrity of data. In this article, we present a security and
performance driven architecture for these centers that incorporates an
intrusion management system for multi-tenant distributed transactional
databases. The proposed architecture uses a novel data partitioning and
placement scheme based on damage containment and communication cost of
distributed transactions. In addition, we present a benchmarking framework for
evaluating the performance of the proposed architecture. The results illustrate
a trade-off between security and performance goals for Cloud data centers.
