Fault Tolerance and Scalability in DSM Coherence Protocols -- A Simulation Approach

With the advent of large networks and the demand to have uninterrupted service, there is a pressing need for computer systems to be more robust and fault tolerant. There are numerous ways to implement fault tolerance and recovery [5, 50]. Yet, a central concept in all these methods is the requirement for replicated data leading to high data availability. We believe that a protocol must not only provide data replication, but also that it should do so at low operational overhead. Further, the protocol must provide mechanisms for varying the level of replication (so that the system may be operated at a desired overhead cost), and must scale well. At the University of California, Riverside, we have developed a program-driven ..