Based on the analysis of I/O node failure,an efficient fault tolerance method called Round-robin Redundant Backup of Subfile is proposed.

But, with the scale of cluster system expanding, node failures become a commonplace feature of such large-scale systems.

On the aseismic reliability analysis of lifeline networks containing multisources and node failures, applying Monte Carlo simulation technique, a general method is presented.

Study on Single Point of Failure and Service Backup Mechanism in MAS-Based CSCW Architecture;

With amethod which is similarto the route select policy, the lower entity can select effective higher entityautomatically, and resolve single point of failure problem can be sdeved.

The new mechanism is used for DIDS mainly, looks CIDS as a special example, focuses on communication speed of IDS and IDS self-safety, reduces false alerts rate and single point of failure questions, can detect cooperation and Dos intrusions at the same time.