SSDLM: architecture of a distributed lock manager with high degree of locality for clustered file systems

Computers have been commodities over the last few years and cluster systems using PC servers are currently working for many applications. A cluster system can potentially provide features of high availability, extended scalability and fault-tolerance. However, there are few cluster systems with both transaction-oriented capability and a single image of a system. In this paper, we propose a distributed lock manager´s architecture called shared-lock self-management distributed lock manager (SSDLM) for clustered file systems, which need both of the features. The architecture is based on self-management of shared locks in a node to decrease lock management overhead in a cluster system.