Titlebook: Delta-4: A Generic Architecture for Dependable Distributed Computing; David Powell Book 1991 ECSC — EEC — EAEC, Brussels — Luxembourg 1991

Inscrutable

Confidential

Distributed Fault-Tolerance, of the service that is offered; distributed systems must thus at least have . built-in fault-tolerance. On the other hand, most fault-tolerant systems can, at some level or another, be seen as a distributed system due to their redundant processing resources. Distributed fault-tolerance is used here

漫不经心

Open System Architecture (OSA),ty must be accommodated. OSA is open to heterogeneous hardware and local executives. In particular, it is able to accommodate off-the-shelf host computers that have not been specialized for fault-tolerance and have a . no built-in mechanisms for that purpose. The Delta-4 OSA infrastructure therefore

nautical

混合,搀杂

外形

具体

Software-Fault Tolerance,ding fault-tolerant mechanisms: the possibility of design faults could therefore be neglected. In the subsequent years, recognizing that software design faults are becoming a major source of system service disruption, it was decided to study how to provide the Delta-4 architecture with specific prov