Availability Management Software For Multi-node Cluster System Design And Implementation,

During the past years, the research for high-available computer systems has been active. With the rapid increasement of commercial services which are delivered throught Internet, this field has become more important. This is mainly due to the reason that, availability of computer services has great effects on the profits of service ventors. The other effect brought forth by this trendcy is that, high available computer systems with larger scale are in great demands. As a result, the research for scalable high available computer clusters has become very necessary. The thesis just aims at this issue.One major part of this thesis is about the essential issues in designing HA (high availability) management software for multi-node cluster. We first focuse on the relationship between the architecture of HA management software and the scalability of the cluster, and two typical architectures namely, "peer-peer architecture" and "structural architecture", are analysized and compared. Then,we turn to next focus--interface between HA management software andapplications, and three interface strategies namely, "black box", "cluster-aware applications" and "virtual cluster-aware applications", are analysized and compared.The other major part of this thesis is the design and implementation of DSC's HA management software. DSC (Dawning Server Consolidation) is a server consolidation system built on the Dawning2000 computer cluster. DSC's HA management software has implemented the functions that are essential to a HA management software of a multi-node HA cluster.