从DB2体系结构层面来看，DB2有哪些关键组件构成，各个组件之间如何交互和协作?

个人认为：无论是数据库管理员还是应用开发人员,都不需要了解DB2内部的组件构成, 以下是我所知的DB2 engine components:

 BSU: Base System Utilities
 FCM: Fast Communications Manager
 RDS: Relational Data Services
 DMS: Data Management Services
 BPS: Buffer Pool Services
 DPS: Data Protection Services
 OSS: Operation System Services
 APM: Access Plan Manager